Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
|---|
| an industrial hygiene evaluation of beet sugar processing plants. | industrial hygiene surveys were conducted at seven beet sugar processing plants to evaluate worker exposures to chemical contaminants used or generated in the process. personal air sampling used to evaluate worker exposures showed overexposures to calcium oxide, carbon monoxide, respirable coal dust, sulfur dioxide, and sugar dust. the beet sugar industry is an old industry, lacking engineering controls found in many other industries. | 1990 | 2353641 |
| geminivirus coat protein gene replacement alters insect specificity. | chimeric clones have been constructed in which the coat protein encoded by dna a of the bipartite genome of the geminivirus african cassava mosaic virus (acmv) has been replaced by that of beet curly top virus (bctv). constructs containing the coding region inserted in either orientation were infectious when co-inoculated with acmv dna b onto nicotiana benthamiana, producing symptoms typical of acmv infection. the onset of symptom production was delayed relative to plants inoculated with parenta ... | 1990 | 2353465 |
| [fertility and reproduction in women working in beet growing and animal breeding (1943-1982)]. | the article contains formulae for real fertility rate (rfr), functional and calendar-related pregnancy intervals. rfr is proposed as the criteria in the assessment of occupational factors' influence on the reproduction function in couples not using contraceptives. the simultaneous reproduction assessment with two indices involved (real fertility and birthrate) made it possible to evaluate the role of the occupational and social factors in human reproduction in the region. the agricultural female ... | 1990 | 2351285 |
| [factors enhancing the stability of ascorbic acid in alcohol-free carbonated drinks]. | factors were studied influencing the stability of ascorbic acid (aa) in carbonated drink "legenda". it has been established that beet-tea pigment and its mixture with polyvinylpyrrolidone produce a high stabilizing effect on aa due to formation of stable complexes with aa, which was supported by the data of spectrophotometry. | 2013 | 2346017 |
| nicotiana velutina mosaic virus: evidence for a bipartite genome comprising 3 kb and 8 kb rnas. | dna complementary to nicotiana velutina mosaic virus (nvmv) rna was cloned and five segments larger than 0.9 kb were used in northern blot hybridization analysis to identify two virus-specific rnas, approximately 8 kb (rna 1) and 3 kb (rna 2) in size. the clones selected as probes did not hybridize with rna from various tobamoviruses, or from beet necrotic yellow vein (bnyvv) and peanut clump furoviruses. in an attempt to determine the taxonomic position of the virus, about 75% of the nvmv rna 2 ... | 1990 | 2345363 |
| [microbial metabolites in the large intestinal sections of swine fed rations rich in crude fiber]. | 3 x 4 fattening pigs receiving 4.7% (control), 13.5% (sugar beet pulp) or 17.0% cf (green meal) in the diet, were slaughtered and investigations of ph-values, % dm, vfa- and nh3-concentrations were made in 4 sections of the hindgut. between caecum and 2nd/3rd colon-section all dates were significantly different. among all values % dm (r = 0.91) and nh3 (r = 0.68) were positively, but vfa negatively correlated (r = -0.76) with ph-value. values of ph reached 6 only in the second half of the colon. ... | 1990 | 2344274 |
| relationships among luteoviruses based on nucleic acid hybridization and serological studies. | the luteoviruses barley yellow dwarf virus (bydv-pav and bydv-rpv), bean leaf roll virus (blrv) beet western yellows virus (bwyv), carrot red leaf virus, potato leaf roll virus, and soybean dwarf virus (sdv) were compared by hybridization with random cdna probes and serologically with polyclonal antisera. for hybridizations, filters had each rna blotted in duplicate dots at 10 ng/dot. random-primed cdna probes were prepared from 300 ng of each rna and used to probe filters at three levels of str ... | 1990 | 2338398 |
| nucleotide sequences of an australian and a canadian isolate of potato leafroll luteovirus and their relationships with two european isolates. | the genomes of an australian and a canadian isolate of potato leafroll virus have been cloned and sequenced. the sequences of both isolates are similar (about 93%), but the canadian isolate (plrv-c) is more closely related (about 98% identity) to a scottish (plrv-s) and a dutch isolate (plrv-n) than to the australian isolate (plrv-a). the 5'-terminal 18 nucleotide residues of plrv-c, plrv-a, plrv-n and beet western yellows virus have 17 residues in common. in contrast, plrv-s shows no obvious si ... | 1990 | 2313269 |
| identification and characterization of plasmids from the western aster yellows mycoplasmalike organism. | supercoiled double-stranded dna molecules (plasmids) were isolated from plants infected with three laboratory strains of western aster yellows mycoplasma-like organism (ay-mlo) by using cesium chloride-ethidium bromide density gradients. southern blot analysis, using plasmids from the severe strain of ay-mlo (say-mlo) as the probe, identified at least four plasmids in celery, aster, and periwinkle plants and in macrosteles severini leafhopper vectors infected with either the dwarf ay-mlo, tulela ... | 1990 | 2307660 |
| inhibition of plant calcium-dependent protein kinases by basic polypeptides. | wheat embryo ca2+-dependent protein kinase (cdpk) is inhibited by a variety of polypeptides including actin, gramicidin s, melittin, protamine, various histone preparations, histone h4 and by basic amino-acid homopolymers. melittin (ki 9 microm) is a non-competitive inhibitor of wheat germ cdpk and also inhibits wheat leaf cdpk and silver beet leaf cdpks. protamine inhibits wheat germ cdpk in an apparently competitive fashion (ki 0.2 microm) and is also a potent, albeit less effective, inhibitor ... | 1982 | 2306477 |
| microbial aggregates in anaerobic wastewater treatment. | the phenomenon aggregation of anaerobic bacteria gives an opportunity to speed up the digestion rate during methanogenesis. the aggregates are mainly composed of methanogenic bacteria which convert acetate and h2/co2 into methane. other bacteria are also included in the aggregates but their concentration is rather small. the aggregates may also be formed during acetogenesis or even hydrolysis but such aggregates are not stable and disrupt quickly when not fed. a two stage process seems to be sui ... | 2008 | 2291438 |
| substitution of dl-methionine for soybean meal as a winter supplement for gestating cows grazing native range. | a winter grazing study was conducted to determine whether dl-methionine could replace soybean meal as a n supplement for gestating beef cows. during two winters (trial 1, n = 51; trial 2, n = 60), crossbred beef cows grazed native foothill range. three treatment groups were supplemented with either none (con), dl-methionine (7.5 g trial 1 and 9 g trial 2) in .5 kg beet pulp carrier (bpm) or .4 kg soybean meal (sbm). cows were supplemented individually every other day. small differences were note ... | 1990 | 2286575 |
| protein synthesis stimulated in sonicated sugar beet cells and protoplasts. | sugar beet suspension cells and protoplasts were exposed to 20 khz ultrasound and the amount of 35s-methionine incorporated into cellular protein was determined after 2 days of culture. the incorporation of 35s-methionine in cells was enhanced up to 90% after sonication for 220-770 ms at 1.2-3.5 w/cm2 which reduced viability 5-11% and decreased the average size of cell aggregates. in protoplasts, the 35s-methionine incorporation was increased up to 31% after sonication for 220-550 ms at 0.3-1.0 ... | 1990 | 2281560 |
| [content of metals in vegetables from various regions of poland in the years 1986-1988. ii. content of zinc and copper]. | the content of zinc and copper was determined in various sorts of vegetables grown in hothouses or on soil. this content was determined also in the soil where these vegetables were grown. the samples of these vegetables were taken directly from the producers in 18 provinces of poland from the areas not contaminated by industrial plants and traffic. the content of cu and zn was determined after dry mineralization of samples at 400 degrees c by asa method in adequately diluted aqueous solutions of ... | 1990 | 2267552 |
| studies of the effect of supplementing protected methionine (hmm-ca) to dairy cows on milk yield and fertility. | a trial with 90 cows was conducted to examine the effect of supplementing 30 g n-hydroxymethyl-dl-methionine-calcium (hmm-ca) from 14 days pre calving till 100 days in lactation on the performance and some physiological traits. cows were kept on four energy levels by feeding different amounts of concentrate. at each energy level, half of the cows were given a methionine supplement. forage consisted of 1/3 corn- and/or beet pulp silage and 2/3 grass silage ad libitum. the amount of daily milk yie ... | 1990 | 2241570 |
| lead and cadmium contamination of soil and vegetables in the upper silesia region of poland. | studies of the lead and cadmium content of soils and vegetables from 126 allotments in 12 towns in a polluted region of poland are described. metal concentrations in parsley, celery, carrots and red beet were determined using aas. in most cases, metal concentrations in soils and vegetables exceeded accepted standards and concentrations found in rural regions. a total of 756 vegetable samples were studied and only 170 met the standard for lead and 17 for cadmium. the lowest lead content was found ... | 1990 | 2237396 |
| antigenic analysis of the coat protein of beet necrotic yellow vein virus by means of monoclonal antibodies. | by means of monoclonal antibodies (mabs), five (groups of) epitopes were identified on particles of beet necrotic yellow vein virus (bnyvv). epitopes 1 and 2, which were located on the opposite extremities of virus particles, are discontinuous (sds-labile) epitopes which were destroyed when the particles were treated with trypsin. epitope 3 is a continuous (sds-stable) epitope located at the same extremity as epitope 2. it was not destroyed when the particles were treated with trypsin and was pr ... | 1990 | 2230729 |
| genomic characterization of phenotypic variants of beet curly top virus. | full-length infectious dna clones were constructed for four distinct phenotypic variants of beet curly top virus (bctv). southern hybridization assays indicated that each cloned bctv genome shared sequence homology with pbct-028, a full-length infectious dna clone of a california isolate of bctv previously characterized by others. restriction endonuclease maps of the cloned bctv genomes were distinct from one another. infectivity assays determined that plasmids containing tandem repeats of bctv ... | 1990 | 2230726 |
| the mitochondrial nad5 gene of sugar beet (beta vulgaris) encoding a subunit of the respiratory nadh dehydrogenase. | we have isolated the nad5 gene from the n-cytoplasm of beta vulgaris, by heterologous hybridization with a nad5 probe from chlamydomonas reinhardtii, and have determined the dna sequence. the gene has a length of 3082 bp and consists of three exons and two introns, 459, 1269, 270, 848 and 357 bp in length, respectively. it has a similarity of 95.1% at the dna level to the nad5 gene of oenothera and the two respective proteins show an overall level of amino acid identity of 88.7%. compared to oen ... | 1990 | 2225143 |
| inoculation of sugar beet protoplasts with beet necrotic yellow vein virus particles by mild sonication. | a novel procedure employing mild sonication for in vitro inoculation of plant protoplasts with virus particles has been established. sugar beet (beta vulgaris l.) protoplasts were briefly exposed to 20 khz ultrasound in the presence of beet necrotic yellow vein virus (bnyvv) particles. the accumulation of bnyvv coat protein was analyzed by an enzyme-linked immunosorbent assay. the infection was detectable after 16 h and reached maximum 3-3 1/2 days after inoculation. maximum levels of bnyvv coat ... | 1990 | 2211957 |
| utilization of beet molasses for sterol production by some moulds. | different moulds were cultivated in beet molasses (bm)-containing medium. penicillium crustosum thom was superior to the other moulds in total sterols production (4% on dry weight basis), efficiency of convertibility of the bm sugars to sterols (2%), total lipids (19.4%) and unsaponified lipids (13.4%). the treatment of bm with h2so4- followed by centrifugation allowed maximum fermentation yields. the highest unsaponified lipids (16.5%) and total sterols level (7.4%) were obtained with a medium ... | 1990 | 2206469 |
| [influence of the quantity of ingested dry matter and food retention time on feed digestibility in dairy goats]. | simultaneous measurements of organic matter digestibility (omd) and particulate mean retention time (mrt) of diets containing various proportions of hay and concentrate (bran or beet pulp) were performed in lactating or dry goats. beyond the hay and concentrate influences, the omd decreased by 0.5 and 1.3 points as the dry matter intake level increased by 10 g/kg lw0.75 and mrt decreased by 5 h, respectively. | 1990 | 2206321 |
| immunodetection in vivo of beet necrotic yellow vein virus-encoded proteins. | open reading frames identified on the four genomic rnas of beet necrotic yellow vein virus were cloned into bacterial expression vectors and resulting cl-fusion proteins expressed in escherichia coli were used to raise polyclonal antibodies. this set of antisera was used to show the presence of 7 of 9 predicted viral proteins in mechanically inoculated chenopodium quinoa leaves by the western blot technique. viral coat protein (p22) and its readthrough protein p85 encoded by rna-2 could be detec ... | 1990 | 2202150 |
| the effect of patterns of rumen fermentation on the response by dairy cows to dietary protein concentration. | four groups of seven dairy cows were given hay plus high-fibre concentrates based on sugar-beet feed (hay-concentrate, 40:60 w/w) or high-starch concentrates based on flaked maize (hay-concentrate, 20:80 w/w), with a crude protein (nitrogen x 6.25) content of either 160 or 220 g/kg dry matter, over weeks 4-18 of lactation. performance during week 3 of lactation, when all cows were fed on a standard ration, was used as a covariate. for diets with a high-fibre content, higher protein concentration ... | 1990 | 2185824 |
| measurement of transit time of digesta through sections of gastrointestinal tract of pigs fed with diets containing various sources of dietary fibre (non-starch polysaccharides). | the effects of various sources of dietary fibre (defined as non-starch polysaccharides (nsp] on the transit time (tt) of digesta through sections of digestive tract were measured in pigs of 30-85 kg. the pigs were fitted with simple cannulas in the terminal ileum, caecum and mid-colon. diets in experiments 1-3 were based on barley, wheat, soya bean meal and fish meal with nsp added in the form of wood cellulose (experiment 1), guar gum (experiment 2), wheat bran, pectin (experiment 3). lactulose ... | 1990 | 2175586 |
| the effects of sugar-beet fibre and wheat bran on iron and zinc absorption in rats. | the addition of 1 g sugar-beet fibre (beta fibre) to 3 g semi-synthetic diet resulted in a 54% increase in iron and a 39% increase in zinc absorption in rats. the same amount of non-starch polysaccharides fed as wheat bran (1.9 g) had no effect on fe absorption but reduced zn absorption by 9%. the inhibitory effect of wheat brain is probably due to its high phytate content, but there is, as yet, no explanation for the enhancement of fe and zn absorption caused by beta fibre. if the effect also o ... | 1990 | 2171635 |
| the biological effects and digestible energy value of a sugar-beet fibre preparation in the rat. | a sugar-beet fibre preparation (sbf) was incorporated into a semi-synthetic rat diet at a level of 100 g/kg. the material caused no feed aversion, and gain of live weight was unimpaired. sbf appeared to be slightly more fermentable than wheat bran and only marginally less effective as a faecal bulking agent when compared with equalized intakes of non-starch polysaccharide. sbf did not stimulate mucosal cell turnover in the small intestine. some enlargement of the caecum was observed in animals g ... | 1990 | 2169304 |
| the effect of soluble- and insoluble-fibre supplementation on post-prandial glucose tolerance, insulin and gastric inhibitory polypeptide secretion in healthy subjects. | six healthy non-obese male subjects were given three test meals containing 100 g carbohydrate and 1.5 g soluble paracetamol, supplemented on one occasion with 10 g guar gum and on another with 10 g sugarbeet fiber. a further six subjects were given the same test meal supplemented on one occasion with 10 g soya-bean-cotyledon fibre and on another, 5 g glucomannan. venous blood samples were taken before, and at intervals for 180 min following the meal, and analysed for insulin, gastric inhibitory ... | 1990 | 2169302 |
| [measuring energy turnover in the adult swine during feeding of rations with potato starch, potatoes, beets, pressed shreds and coarse fodder as supplements to a basic ration. 1. energy turnover and energy utilization]. | 25 rations with a wide variation of the content of various carbohydrates (crude fibre 36-185; water-soluble carbohydrates 25-306, starch 272-683 g/kg dm) were fed to male castrates (n = 8) of a live weight between 90 and 180 kg, and energy metabolism was measured. the rations were composed of a cereal basic ration and various feed-stuffs (potato starch-raw and soaked) potatoes (raw and steamed), sugar beet and products from it, maize pellets, dried roughage lucerne, clover, lupin, grass, rye str ... | 1990 | 2166494 |
| effect of detergents on the h(+)-atpase activity of inside-out and right-side-out plant plasma membrane vesicles. | in search for a detergent to be used to assess the sidedness of plant plasma membrane vesicles by enzyme latency we tested the effect of 42 detergents on the atpase activity of right-side-out and inside-out plasma membrane vesicles from sugar beet leaves. most of the detergents seemed to inactivate the atpase in addition to disrupting the permeability barrier to atp. there were two main exceptions, namely long chain polyoxyethylene acyl ethers, such as detergents of the brij series and lubrol wx ... | 1990 | 2154256 |
| purification and characterization of the proton translocating plasma membrane atpase of red beet storage tissue. | plasma membranes were prepared from red beet (beta vulgaris l.) storage tissue by partition in an aqueous two-phase system. a highly active proton-translocating atpase was purified from these membranes by lysophosphatidylcholine extraction and glycerol density gradient centrifugation. the atpase activity was inhibited by vanadate or dicyclohexyl carbodiimide, but was insensitive to azide, nitrate and molybdate at concentrations which inhibit the f1atpase, the tonoplast atpase, and acid phosphata ... | 1990 | 2142002 |
| identification of the udp-glucose-binding polypeptide of callose synthase from beta vulgaris l. by photoaffinity labeling with 5-azido-udp-glucose. | the photoaffinity probe 5-azidouridine 5'-[beta-32p]diphosphate glucose (5n3[32p]udp-glc) was used to identify a 57-kda polypeptide as a strong candidate for the udp-glc-binding polypeptide of udp-glucose: (1,3)-beta-glucan (callose) synthase from red beet (beta vulgaris l.) storage tissue. unlabeled 5n3udp-glc was a competitive inhibitor of callose synthase with a ki of 310 microm. callose synthase was purified from plasma membranes by a two-step solubilization with 3-[(3-cholamidopropyl)dimeth ... | 1990 | 2137125 |
| sugarbeet mitochondria contain an open reading frame showing extensive sequence homology to the subunit 2 gene of the nadh: ubiquinone reductase complex. | sequence analysis of a transcribed region of mitochondrial dna (mtdna) from male fertile sugarbeet (beta vulgaris l.) revealed an open reading frame showing extensive sequence homology to the subunit 2 gene of the nadh: ubiquinone reductase complex (nad2). sugarbeet nad2 in common with its proposed counterpart in animal mitochondria has no intron and thereby differs from the corresponding chloroplast gene. northern rna analysis of sugarbeet nad2 suggested that transcription of this locus gives r ... | 1990 | 2115110 |
| health effects of pesticides on female beet growers. | the working conditions of female beet growers and their health effects were studied. dust, chemical substances, physical strain and the forced working posture were among the occupational factors producing adverse health effects. contact with pesticides is believed to be the major factor in the development of chronic pathology and temporary disability among female beet-growers. there is a need to promote a system of preventive measures, including comprehensive biological monitoring and control of ... | 2004 | 2100767 |
| risk factors for clinical mastitis in herds with a low bulk milk somatic cell count. 1. data and risk factors for all cases. | the incidence rate of clinical mastitis in 125 herds with a low annual bulk milk scc (less than 150,000 cells/ml) was modeled using a poisson regression model. the rate of clinical mastitis was significantly associated with some variables that increased the exposure to environmental microorganisms: poor cubicle cleanliness increased the mastitis rate; rubber mats in cubicles were associated with a higher incidence; and drinking water from sources other than public water also increased the rate o ... | 1990 | 2099368 |
| [energetic utilization of sugar beets, dried shreds, sucrose and apple pectin by growing swine. 1. study overview and composition and digestibility of feed and rations]. | total metabolism experiments with a basic ration were carried out over two measuring periods and with a basic ration plus supplements of raw sugar beets, steamed sugar beets, dried sugar beet pulp, sucrose and apple pectin resp. with 4 pigs per test group and 4 test groups (lw 40-135 kg). live weight gain was approximately equal after the feeding of raw and steamed sugar beets. it amounted to 650 g/animal and day in the first experimental period and to 715 g in the second. after feeding dried su ... | 1990 | 2090026 |
| [extent and effect of fermentation in the large intestine of swine. 2. extent of fermentation, pattern of volatile fatty acids and in vitro formation rate]. | after adaptation to 8 extremely different rations 40 pigs with 108 to 125 kg lw and 6 lactating sows with 183 kg were slaughtered to obtain digesta of the hindgut. from digesta of caecum and three sections of the colon microbial metabolites and in vitro-vfa-production rates were determined. ph-values increased from 5.5 to 6.3 from caecum to the end of colon. vfa-concentrations and -production-rates decreased along the bowel to one third. highest fermentations came from rations with 50% dried bee ... | 1990 | 2090024 |
| [atropine poisoning by mandragora autumnalis. a report of 15 cases]. | anticholinergic syndrome (as) due to accidental poisoning is exceptional. mandragora contains a high concentration of atropine, hiosciamine and scopolamine. we have evaluated 15 patients with as due to poisoning by mandragora autumnalis, distributed in two family groups. the latency period since the ingestion was 1-4 hours (means = 2.7 +/- 0.9). the clinical features corresponded to an as of variable severity. all patients had blurred vision and dryness of mouth, nine (60%) had difficult micturi ... | 1990 | 2087109 |
| [the use of the sugar beet in swine nutrition. 2. the effect of different preparation processes on the apparent prececal and fecal digestibility]. | with ileum cannulated sows were tested the apparent precaecal and faecal digestibility of crude nutrients from raw and thermically treated fodder sugar beets of size "rosamona". two samples from two different harvest years, differing extremely in the content of disaccharides were tested. the crude nutrient digestibility affected stronger by content of sucrose then by treatment. fodder sugar beets with contents of disaccharide lower then 400 g/kg dm showed low precaecal and faecal digestibilities ... | 1990 | 2076055 |
| trophic relationships between saccharomyces cerevisiae and lactobacillus plantarum and their metabolism of glucose and citrate. | glucose and citrate are two major carbon sources in fruits or fruit juices such as orange juice. their metabolism and the microorganisms involved in their degradation were studied by inoculating with an aliquot of fermented orange juice a synthetic model medium containing glucose and citrate. at ph 3.6, their degradation led, first, to the formation of ethanol due to the activity of yeasts fermenting glucose and, eventually, to the formation of acetate resulting from the activity of lactobacilli ... | 1991 | 2059031 |
| cloning and characterization of a beta vulgaris satellite dna family. | three members of the bamhi-sequence family of sugar beet (beta vulgaris) have been cloned in escherichia coli and compared by sequence analysis. the sequence family shows the typical features of eukaryotic satellite dna, e.g., organization in tandem arrays and sequence divergence. a typical ladder pattern of a monomer (327 bp) and multiple oligodeoxyribonucleotides have been observed. the bamhi monomer is a + t-rich (69%) and does not show any similarity to other known plant satellite dnas. | 1991 | 2055488 |
| detection of orange juice adulteration with beet medium invert sugar using anion-exchange liquid chromatography with pulsed amperometric detection. | carbohydrate analysis of 5 beet medium invert sugar (bmis) samples and 10 pure orange juices was carried out using anion-exchange chromatography with a pulsed amperometric detector. this analysis revealed the presence of several oligosaccharides in bmis that were in either low concentration or nonexistent in the orange juice samples. these oligosaccharides may be naturally present in sugar beets or synthesized during the acid and/or enzyme catalyzed hydrolysis of sucrose during the production of ... | 2015 | 2050615 |
| [the energetic utilization of sugar beets, dried chips, cane sugar and apple pectin by growing swine. 2. nitrogen and energy metabolism]. | the energetic utilization of rations with raw and steamed sugar beets, dried sugar beet pulp (16 measured values each), sucrose and apple pectin (8 measured values each) as supplement feed to a basic ration was measured at 4 growing pigs each in the live weight range of between 40 and 130 kg. the utilization of the energy in the rations amounted to 69.1 +/- 5.5, 68.3 +/- 7.1, 60.9 +/- 5.8, 70.5 +/- 4.1 and 69.9 +/- 6.9% (same sequence as above). the utilization values for the supplemented feedst ... | 1991 | 2048968 |
| pigment stoichiometry of a newly isolated d1-d2-cyt b559 complex from the higher plant beta vulgaris l. | two d1-d2-cyt b559 complexes with different pigment stoichiometry were isolated from the higher plant b. vulgaris. the procedures for isolating both complexes only differed in the washing time of the deae column with 50 mm tris-hcl, ph 7.2, 0.05% triton x-100 and 30 mm nacl. when the column was washed until the eluate had an absorbance of 0.01 at 670 nm, the isolated d1-d2-cyt b559 complex presented a pigment stoichiometry of 6 chlorophyll a, 2 beta-carotene, and 1 cytochrome b559 per 2 pheophyt ... | 1991 | 2044763 |
| [copper poisoning of sheep after ad libitum supplementation of rations by a mineral feed]. | within 8 weeks 22 of 400 sheep died with symptoms of cu intoxication. in the liver of 2 dead sheep cu contents of 491 and 830 mg/kg dry matter were found. the concentration of copper in the concentrate and other feedstuffs (grass, hay, straw, kale, dried sugar beet pulp) could not explain the development of cu-toxicosis. the mineral-vitamin-supplement contained 86.7 mg cu/kg. obviously the cu intoxication of previously cu loaded sheep was provoked by offering the mineral supplement ad libitum (w ... | 1991 | 2044468 |
| flavomycin effects on performance of beef bulls and nutrient digestibility in wethers. | for 28 weeks a feeding experiment was conducted to determine the effects of dietary flavomycin on performance of beef bulls. in the first and second half of the trial, 40 animals (average initial weight 352 kg) had free access to corn silage or beet pulp, respectively, both supplemented with an appropriate concentrate containing 0 or 10 mg/kg of the antibiotic. daily flavomycin intake was 39 to 46 mg when the animals were on the corn silage diet and 51 to 54 mg when they were fed the beet pulp d ... | 1991 | 2026115 |
| rapid control of purity for the cytoplasm of male-sterile seed stocks by means of a dot hybridization assay. | to produce hybrids, one member of the parental line is genetically made male-sterile. this male-sterile trait is encoded by mitochondria so that it is maternally inherited. consequently, the progeny of a male-sterile plant is fully sterile. nevertheless, during the handling of cytoplasmic male-sterile seed stocks, some mixture with seeds of the maintainer lines can occur. up to the present time, the only way to check the homogeneity of the cytoplasmic male-sterile seed stock was to grow the plan ... | 1991 | 2017200 |
| putative 65 kda protein of beet yellows closterovirus is a homologue of hsp70 heat shock proteins. | a portion of the rna genome of beet yellows closterovirus (byv) has been sequenced encompassing a complete long open reading frame (orf) potentially encoding a 65 kda protein. the sequence of this putative protein was strikingly similar to those of hsp70-related heat shock proteins. the counterparts of all the eight segments strongly conserved in hsp70s could be confidently identified in the byv 65 kda protein. it is suggested that some of these segments might be the atp-binding site(s) and that ... | 1991 | 2005613 |
| shortened forms of beet necrotic yellow vein virus rna-3 and -4: internal deletions and a subgenomic rna. | beet necrotic yellow vein virus rna-3 and rna-4, produced as full-length biologically active transcripts in vitro, can undergo spontaneous internal deletions when inoculated onto chenopodium quinoa leaves along with rna-1 and -2. the deletion process is specific, giving rise to only a few major species, and can be rapid; deleted forms appear after only one or two passages in leaves. in one of the shortened forms of rna-4, the deletion precisely eliminated one copy of a 15 nucleotide (nt) direct ... | 1991 | 1993870 |
| nucleotide sequence of the 3'-terminal half of beet yellows closterovirus rna genome: unique arrangement of eight virus genes. | the sequence of 6746 nucleotides representing the 3'-proximal half of the beet yellows closterovirus (byv) genome was determined. in the direction 5' to 3', the sequence was composed of eight open reading frames (orfs) potentially encoding proteins of 6.4k (orf2), 65k (orf3), 64k (orf4), 24k (orf5), 22k (orf6), 20k (orf7) and 21k (orf8). an incomplete orf, orf1, encoded the c-terminal part of a putative rna-dependent rna polymerase, most closely related to polymerases of tricornaviruses; the put ... | 1991 | 1990061 |
| cytoplasmic male sterility in beta is associated with structural rearrangements of the mitochondrial dna and is not due to interspecific organelle transfer. | chloroplast (ct) and mitochondrial (mt) dnas from four cytoplasmic male sterile (cms) and 22 normal fertile sugar beet lines and accessions of wild beets from the genus beta have been compared with restriction analyses and southern hybridizations. we have used restriction analyses of ctdna as a phylogenetic marker to confirm the taxonomic relationships between the different cytoplasms. according to the ctdna data, all four cms cytoplasms belong to the same taxonomic section, beta. restriction pa ... | 1990 | 1979822 |
| [does sugar play a role in the development of gastroenterologic diseases (crohn disease, gallstones, cancer)?]. | the consumption of cane- and beet-sugars per person has today reached a level of 100 g per day. in a discussion of the role of sugar in gastrointestinal diseases there must be a differentiation between a direct effect directly related to high sugar-consumption, and an indirect effect where sugar displaces other nutritive substances in the diet. not only epidemiological, but also experimental data support that sugar has no direct, toxicological, carcinogenic or disease-inducing disposition for ga ... | 2007 | 1964756 |
| the estimation of nutritive value of dairy cattle feed. | a survey is given of different methods used for the estimation of the net energy lactation and the digestible crude protein content of forages (grass hay, grass silage, maize silage) as well as tuber crops (fodder beet, turnips, raw potatoes), by-products (dried sugarbeet pulp, pressed sugarbeet pulp), compound feeds and raw ingredients for dairy cattle. the following methods are discussed: --methods only based on chemical parameters: crude fibre and cell walls. --methods using rumen fluid from ... | 1990 | 1963769 |
| [the effect of food fiber on the biological value of meat products]. | the effect of food fibres of wheat bran, beet pectin and methylcellulose on the biological value of meat proteins has been studied in experiments on the growing rats. it has been shown, that up to 1% on food fibres of wheat bran and up to 0.5% of pectin and methylcellulose can be added to meat products without spoiling their qualitative indices. higher levels of these substances cause the reduction of the biological value of meat products. | 1990 | 1963612 |
| dietary fiber for dogs: ii. iso-total dietary fiber (tdf) additions of divergent fiber sources to dog diets and their effects on nutrient intake, digestibility, metabolizable energy and digesta mean retention time. | the objectives of this study were to examine widely divergent fiber sources for their efficacy as ingredients in a meat-based dog diet and to determine the effects of these fibers on fecal excretion responses and mean retention time of marked fiber in the gastrointestinal tract of the dog. fiber sources tested included beet pulp (bp), tomato pomace (tp), peanut hulls (ph), wheat bran (wb) and alkaline hydrogen peroxide-treated wheat straw (ahpws). diets were isonitrogenous (5.3% n) and iso-total ... | 1990 | 1962766 |
| dietary fiber for dogs: i. effects of graded levels of dietary beet pulp on nutrient intake, digestibility, metabolizable energy and digesta mean retention time. | the optimal level of beet pulp (bp) inclusion in a meat-based dog diet and the effects of graded levels of dietary bp on fecal excretion responses and mean retention time of marked fiber in the gastrointestinal tract of the dog were evaluated using 30 female english pointers assigned to isonitrogenous diets containing 0, 2.5, 5.0, 7.5, 10.0 or 12.5% bp (dm basis). beet pulp replaced portions of dietary cornstarch. digestibilities of dm and om decreased by an average of 6% when comparing diets co ... | 1990 | 1962765 |
| [the effect of chronic uvb-irradiation on the growth, development and productivity of fodder beet]. | in a field study in 1989, the effect of additional uv-b-irradiation (with an intensity of 0.34, 0.49 or 0.77 w/m2, daily exposure of 17.3, 26.7 or 39.1 kj/m2, and total exposure of 1457.3, 2248.8 or 3285.6 kj/m2) on the growth, development and productivity of fodder beet var. eckendorf yellow was investigated. the three levels of irradiation caused a delay of plant growth and a significant reduction of plant height (18-26%), air-dry weight of leaves (32-43%), wet weight of leaves (48-52%), and w ... | 2006 | 1960946 |
| cdnas of beet necrotic yellow vein virus rnas 3 and 4 are rendered biologically active in a plasmid containing the cauliflower mosaic virus 35s promoter. | cdnas of beet necrotic yellow vein virus rnas 3 and 4 could be rendered biologically active when they were placed under the control of the cauliflower mosaic virus 35s promoter and polyadenylation signal. although the 35s in vivo transcripts should have contained up to forty 5' and several hundred 3' nonviral nucleotides, the progeny viral rnas had the same sizes as in naturally infected sugarbeets. the progeny rnas did not hybridize with the nonviral sequences indicating that they were apparent ... | 1991 | 1926790 |
| survival of listeria monocytogenes in a food colorant derived from red beets. | three commercial lots of the red beet colorant were inoculated to contain circa 10(3) to 10(7) listeria monocytogenes strains california, v7, or scott a per milliliter and stored for 56 d at 7 degrees c. mcbride listeria agar was used to determine numbers of survivors. selected colonies thought to be l. monocytogenes were confirmed biochemically. when necessary, samples were tested by cold enrichment (up to 8 weeks). samples of colorant initially containing 10(3) to 10(4) strain california/ml we ... | 1991 | 1903135 |
| n,n-diethylhydroxylamine: a new electron donor to photosystem ii. | diethylhydroxylamine, when added to beet spinach thylakoid membranes in the reaction mixture enhanced both photosystem ii mediated dichlorophenolindophenol photoreduction and whole chain electron transport supported by methyl viologen. diethylhydroxylamine supports dichlorophenolindophenol photoreduction when oxygen evolving complex is inactivated by hydroxylamine washings. all the electron transport assays were found to be highly sensitive to diuron, indicating that diethylhydroxylamine donates ... | 1991 | 1898394 |
| replicational release of geminivirus genomes from tandemly repeated copies: evidence for rolling-circle replication of a plant viral dna. | agrobacterium-mediated inoculation of nicotiana benthamiana plants with ti plasmids containing tandem genome repeats derived from different strains of the gemini-virus beet curly top virus (bctv) resulted in the production of unit-length recombinant progeny genomes in systemically infected plants. when two putative plus-strand origins of replication were present in constructs used as inocula, a replicational escape mechanism was favored that resulted in progeny genomes of a single predominant ge ... | 1991 | 1896448 |
| effect of recombinant beet necrotic yellow vein virus with different rna compositions on mechanically inoculated sugarbeets. | beet necrotic yellow vein virus (bnyvv) inocula with different rna compositions were prepared from infectious transcripts of rnas 3 and 4 and the rg 1 isolate, which has a genome consisting only of rnas 1 and 2. the recombinant viruses were inoculated on 6- to 8-day-old sugarbeet seedlings by 'vortexing'. inocula containing rnas 1 and 2 or 1, 2 and 4 produced some growth reduction, but the most dramatic effects, with yield reductions of about 95% in a highly susceptible variety, were seen when r ... | 1991 | 1895061 |
| the phylogeny of rna-dependent rna polymerases of positive-strand rna viruses. | representative amino acid sequences of the rna-dependent rna polymerases of all groups of positive-strand rna viruses were aligned hierarchiacally, starting with the most closely related ones. this resulted in delineation of three large supergroups. within each of the supergroups, the sequences of segments of approximately 300 amino acid residues originating from the central and/or c-terminal portions of the polymerases could be aligned with statistically significant scores. specific consensus p ... | 1991 | 1895057 |
| influence of the substituents of the carboxyl groups and of the rhamnose content on the solution properties and flexibility of pectins. | viscometric measurements were carried out on well-characterized apple, citrus, sugar-beet pectins in order to analyse the effect of the nature and the amount of substituents (methyl, amide, acetyl groups) and of the rhamnose content on the flexibility of the polymeric backbone. through the dependence of the intrinsic viscosity with the ionic strength the flexibility parameter b was determined. b values between 0.072 and 0.017 indicate that pectins are relatively stiff molecules. however, an incr ... | 1991 | 1888715 |
| the nucleotide sequence and luteovirus-like nature of rna 1 of an aphid non-transmissible strain of pea enation mosaic virus. | an examination of the genomic strategy of pea enation mosaic virus (pemv) rna 1 has verified strong organizational and sequence relationships between pemv and the beet western yellows-potato leafroll luteovirus subgroup. sequence analysis of rna 1 demonstrated five predominant open reading frames (orfs). the extreme 5' orf encodes a 34k product of unknown function. the second orf encodes an 84k product which overlaps 90% of orf 1 (in a unique reading frame) and is expressed by internal initiatio ... | 1991 | 1875194 |
| phylogeny of capsid proteins of rod-shaped and filamentous rna plant viruses: two families with distinct patterns of sequence and probably structure conservation. | computer-assisted comparative analysis of all available amino acid sequences of the capsid proteins of positive strand rna plant viruses with helical capsids is described. two distinct families of homologous proteins were delineated through statistically significant sequence similarities, one including the capsid proteins of rod-shaped viruses (tobamo-, tobra-, hordei-, and furoviruses) and the other those of filamentous viruses (poty-, bymo-, potex-, carla-, and closteroviruses). it was conclud ... | 1991 | 1871982 |
| reconstitution of active sucrose transport in plant proteoliposomes. | the proteins of purified plasma membranes from sugar beet (beta vulgaris l.) leaf were solubilized and separated on a size exclusion column. the fractions eluted from the column were monitored by elisa with antibodies directed to a putative sucrose carrier protein. the peak most reactive in elisa was approximately 120 kda, and yielded a 40 kda peak after denaturation by sds. the 120-kda peak was recovered and used for reconstitution experiments with asolectin. upon imposition of an artificial ph ... | 1991 | 1864359 |
| evidence that the 75k readthrough protein of beet necrotic yellow vein virus rna-2 is essential for transmission by the fungus polymyxa betae. | two mutant strains of beet necrotic yellow vein virus (bnyvv) containing deletion mutants of rna-2 were produced during serial passage in mechanically inoculated tetragonia expansa leaves. the mutant strains were referred to as s-0a (rna-1 + 2a) and g-0b (rna-1 + 2b). rna-2a and rna-2b were about 4.3 kb and 4.2 kb in length, respectively, whereas normal sized rna-2 was about 4.8 kb in length. in vitro translation and immunoblot analysis showed that rna-2, rna-2a and rna-2b all directed synthesis ... | 1991 | 1856688 |
| ubiquinol-cytochrome c oxidoreductase of higher plants. isolation and characterization of the bc1 complex from potato tuber mitochondria. | a procedure is described for isolation of active ubiquinol-cytochrome c oxidoreductase (bc1 complex) from potato tuber mitochondria using dodecyl maltoside extraction and ion exchange chromatography. the same procedure works well with mitochondria from red beet and sweet potato. the potato complex has at least 10 subunits resolvable by gel electrophoresis in the presence of dodecyl sulfate. the fifth subunit carries covalently bound heme. the two largest ("core") subunits either show heterogenei ... | 1991 | 1851164 |
| metabolic effects and clinical value of beet fiber treatment in niddm patients. | in the present study a randomized cross-over design was used to determine the clinical usefulness of adding 16 g of beet fiber to the ordinary diet of non-insulin dependent diabetic (niddm) out-patients. in addition, fiber effects on the gastrointestinal hormone responses to a standardized test meal were evaluated. the study included five patients treated with diet alone and eight patients treated with diet and sulphonylurea (su). beet fiber supplementation resulted in a 10% reduction (p less th ... | 1991 | 1850691 |
| serum lipid and fecal bile acid changes with cereal, vegetable, and sugar-beet fiber feeding. | thirty-four subjects consumed six controlled formula diets for 3 wk each, supplemented with 0 g added fiber, 10 and 30 g dietary fiber as wheat bran (wb), 10 and 30 g dietary fiber as mixed vegetable fiber (vf), and 30 g dietary fiber as sugar-beet fiber (sbf). serum cholesterol changes for fiber free, 10 g wb, 30 g wb, 10 g vf, 30 g vf, and 30 g sbf (-0.13, -0.18, -0.05, -0.17, -0.24, and -0.70 mmol/l, respectively) were significant for 30 g vf and 30 g sbf. reduction in total cholesterol with ... | 1991 | 1850577 |
| vacuolar proton-pumping pyrophosphatase in beta vulgaris shows vectorial activation by potassium. | previous work with membrane vesicles has demonstrated an absolute dependence on k+ for proton translocation by the inorganic pyrophosphatase (h(+)-ppase: ec 3.6.1.1) from the vacuolar membrane (tonoplast) of higher plants. using intact vacuoles from sugar beet (beta vulgaris) storage tissue, we have monitored pp1-dependent currents by patch clamp in 'whole vacuole' mode. serial k+ substitutions were made at both tonoplast faces. the results show that k+ activation occurs only at the cytosolic fa ... | 1991 | 1847114 |
| nucleotide sequence analysis and genomic organization of the ny-rpv isolate of barley yellow dwarf virus. | cdna clones representing the ssrna genome of the ny-rpv isolate of barley yellow dwarf luteovirus (bydv) were sequenced and 5600 nucleotides of the genome were determined. the deduced genome organization has limited similarity to that of another bydv isolate, vic-pav, but is identical to that of beet western yellows (bwyv) and potato leafroll (plrv) luteoviruses. ny-rpv has six major positive-sense open reading frames (orfs) and, by comparison with rna-dependent rna polymerase and nucleic acid h ... | 1991 | 1840612 |
| application of scale-down experiments in the study of citric acid biosynthesis. | problems associated with the development of submersed citric acid biosynthesis on sugar beet molasses for process improvement were solved by scale-down experiments: the determination of optimal temperature profile, optimal ph value, influence of otr and inoculum quality. the optimal ph value at the start of the process was 6.4 with 3% of inoculum volume and temperature profile between 28-30 degrees c. in the case of otr which is scale-dependent, we prefer to use doc pilot plant data for the tran ... | 1991 | 1821875 |
| the detection of beet western yellows virus and beet mild yellowing virus in crop plants using the polymerase chain reaction. | oligonucleotide primers were synthesised corresponding to conserved sequences between three isolates of beet western yellows virus (bwyv), flanking a 913 base fragment of bwyv genomic rna. using the polymerase chain reaction (pcr), these primers successfully amplified the target fragment in total rna extracts from two oilseed rape plants infected with different isolates of bwyv. the pcr products were readily detected by staining with ethidium bromide following agarose gel electrophoresis, but th ... | 1991 | 1816257 |
| induction, purification and characterisation of arabinases produced by aspergillus niger. | the induction of arabinases in aspergillus niger n400 was studied on different simple and complex carbon sources. sugar beet pulp was found to be an inducer of three arabinan degrading enzymes (alpha-l-arabinofuranosidase a, alpha-l-arabinofuranosidase b and endoarabinase). these enzymes were purified from a. niger culture fluid after growth of the fungus in medium employing sugar beet pulp as the carbon source and were characterised both physico-chemically (mw 83,000, 67,000, 43,000 da and, pi ... | 1991 | 1814275 |
| sensitivity and specificity of nucleic acid probes for potato leafroll luteovirus detection. | complementary dna (cdna) probes, prepared by nick-translation or by oligolabelling of a 520 bp fragment representing residues 4741 to 5261 in the potato leafroll luteovirus (plrv) sequence, were equally sensitive, with a detection limit equivalent to sap from about 600 micrograms of infected potato or nicotiana clevelandii leaf tissue and to rna from about 120 micrograms tissue. increasing the concentration of oligolabelled probe gave similar results with shorter autoradiographic exposures, but ... | 1991 | 1804851 |
| [effect of emissions from the glass factory "sudety" in szczytna on the levels of lead and fluorine in selected vegetables and fruit collected in 1989]. | the objective of these studies was to examine the lead and flurorine contents in vegetables and apples exposed to emission of these elements by the "sudety" glassworks in szczytna (wałbrzych voivodeship). after mineralization of plant material, lead was determined by atomic absorption spectrometry (aas). fluorine was isolated from plant material samples by microdiffusion and was assayed spectrophotometrically using its complex with alizarin. the results indicate that 68% of the vegetables displa ... | 1991 | 1803439 |
| a nondestructive method for peptide bond conjugation of antigenic haptens to a diphtheria toxoid carrier, exemplified by two antisera specific to acetolactate synthase. | a method for the preparation of an activated protein carrier is described: protein carboxyl groups are transformed into n-hydroxysulfosuccinimide esters, a structure that will react with primary amino groups under amide bond formation. although the activated ester is unstable under aqueous conditions, a significant amount of hapten molecules can be bound covalently to the carrier under very mild conditions. ligands can be peptides or other molecules possessing a primary amino group. the method a ... | 1991 | 1799217 |
| factors affecting the production of saccharomyces cerevisiae from sugar beet pulp. | factors affecting the production of s. cerevisiae from sugar beet pulp after acid hydrolysis were investigated. maximum yield and economic coefficient were obtained at sugar concentration of 7.15% after an incubation period of 72 h at 30 degrees c and ph 6.0 using a mixture (1:1) of ammonium sulphate and ammonium nitrate (0.2 g/g sugar) as nitrogen source. hplc analysis of beet pulp hydrolyzate showed that hexoses especially glucose serve as the most suitable sugars with regard to s. cerevisiae ... | 1991 | 1787848 |
| nucleotide sequence of cdna encoding the coat protein of beet yellows virus. | a cdna clone of beet yellows viral rna expressed the viral coat protein gene in e. coli. the sequence of the 2724 nucleotide insert revealed three open reading frames, the 3' of which was shown to be the coat protein cistron. this cistron is expressed in e. coli, in spite of there being no obvious ribosome binding site upstream. | 1991 | 1771765 |
| health education in school children. | a researcher compared responses to a pretest questionnaire with those a posttest questionnaire completed by 304 12-16 year old school children in india to assess health knowledge of school children. the children attended either a public school or a private school in bombay or a rural school in kazli operated by a charitable institution. the researcher administered the posttest 4 weeks after health education talks and demonstrations. before the health education course, children at all 3 schools h ... | 1991 | 1752682 |
| salt-inducible betaine aldehyde dehydrogenase from sugar beet: cdna cloning and expression. | members of the chenopodiaceae, such as sugar beet and spinach, accumulate glycine betaine in response to salinity or drought stress. the last enzyme in the glycine betaine biosynthetic pathway is betaine aldehyde dehydrogenase (badh). in sugar beet the activity of badh was found to increase two- to four-fold in both leaves and roots as the nacl level in the irrigation solution was raised from 0 to 500 mm. this increase in badh activity was paralleled by an increase in level of translatable badh ... | 1992 | 1731961 |
| synthesis of full-length transcripts of beet western yellows virus rna: messenger properties and biological activity in protoplasts. | full-length cdna of beet western yellows virus genomic rna has been cloned behind the bacteriophage t7 rna polymerase promoter of the transcription vector bs(-). the in vitro run-off transcription product obtained in the presence of t7 rna polymerase and m7gpppg cap has the same messenger properties as natural viral rna in in vitro translation systems. the full-length transcript was also able to infect chenopodium quinoa protoplasts inoculated by electroporation. infection could be followed by t ... | 1992 | 1727597 |
| changes in development and ultrastructure of aspergillus niger mycelium, strain with increased tolerance to toxic substances from beet molasses. | effects of a defoamer and toxic molasses compounds on development and ultrastructure of a. niger mycelium, strain z, characterized by high tolerance to these substances and producing citric acid in surface fermentation on proper molasses media with 70% yield were presented. spumol bj in concentration of 5 microliters/100 cm3 as well as toxic molasses compounds stimulated the process of swelling and germinating of conidia. moreover, giant conidia, unable to germinate, appeared. developing myceliu ... | 1991 | 1726624 |
| biologically active transcripts of a large satellite rna from arabis mosaic nepovirus and the importance of 5' end sequences for its replication. | synthetic transcripts of a satellite rna associated with a lilac isolate of arabis mosaic nepovirus (armv) were made from cdna clones. transcripts having either six (m1r) or 29 (m3r) extra nucleotides at their 5' ends replicated in the presence of armv genomic rna in manually inoculated chenopodium quinoa plants, even though m1r also differs from the native sequence at nucleotide position 2. transcript 12r, which has 11 guanosyl residues and 27 other nucleotides not present in the natural satell ... | 1991 | 1722500 |
| influence of elisa conditions on detection of serological relationships among luteoviruses. | three variations in the elisa procedure were used in an attempt to understand the basis for serological relationships among three isolates of barley yellow dwarf virus (bydv-rpv-i from illinois, bydv-rpv-n from new york and bydv-pav from illinois), beet western yellows virus (bwyv) and soybean dwarf virus (sdv). detection of serological relationships was dependent on the state of the virus particle (e.g. dissociated or intact) and the method of detection (e.g. direct or indirect). in indirect el ... | 1991 | 1713915 |
| a characterization of epitopes on potato leafroll virus coat protein. | a panel of ten stable hybridoma cell lines secreting monoclonal antibodies (mabs) specific for potato leafroll virus (plrv) antigen, was produced in two fusion experiments with murine splenic and myeloma cells. using different elisa procedures and western blotting it was shown that one mab detected a continuous epitope and nine mabs reacted with conformation-dependent ones. the conformation-dependent epitopes could be separated into two groups after alkaline treatment of the virions. the mabs we ... | 1990 | 1701986 |
| structure and expression of tomato mitochondrial genes coding for trna(cys) (gca), trna(asn) (guu) and trna(tyr) (gua): a native trna(cys) gene is present in dicot plants but absent in monocot plants. | the nucleotide sequences of trna(asn) (guu) and trna(tyr) (gua) genes from tomato mitochondria and their flanking regions have been determined. the tomato mitochondrial trna(asn) gene is located 2.1 kb downstream from the trna(cys) gene reported previously (izuchi and sugita 1989) and shows a nearly complete identity with the corresponding chloroplast gene. the trna(tyr) gene, which shows only 73% homology with the corresponding chloroplast gene, has to be considered a "native" mitochondrial trn ... | 1990 | 1701109 |
| a functional arginine residue in the vacuolar h(+)-atpase of higher plants. | the arginine-specific reagent phenylglyoxal inactivated the vacuolar h(+)-atpase of red beet. inactivation by phenylglyoxal followed pseudo-first-order kinetics and a double log plot of the t1/2 of inactivation versus phenylglyoxal concentration yielded a slope of 1.18. neither inorganic anions nor dids protected from phenylglyoxal-mediated inactivation of the h(+)-atpase. indeed, cl- stimulated the rate of phenylglyoxal-mediated h(+)-atpase inactivation relative to so4(2-). atp, but not mgatp o ... | 1990 | 1690574 |
| use of group-specific primers and the polymerase chain reaction for the detection and identification of luteoviruses. | a general diagnostic assay for a number of distinct luteoviruses was developed using the polymerase chain reaction (pcr) and restriction enzyme analysis. two minimally degenerate, group-specific primers were derived from previously published rna sequences of three luteoviruses. this primer pair generated specific pcr fragments of about 530 bp from extracts of plants infected with potato leafroll virus, beet western yellows virus, or new york barley yellow dwarf virus (bydv) serotypes mav, pav, r ... | 1991 | 1675249 |
| effects of dietary protein-energy interrelationships on holstein steer performance and ruminal bacterial fermentation in continuous culture. | in vivo and in vitro 3 x 2 factorial experiments were conducted concurrently to evaluate the incorporation of 0, 15, or 30% sugar beet pulp (sbp) as an energy source in diets fed to growing holstein steers with either soybean meal (sbm) or alcohol-treated, defatted soybean flakes (atsbf) as primary supplemental protein sources. three groups of 42 holstein steers each were fed six different diets from 54 kg initial bw to 320 kg in three experimental periods. there were no overall sbp level x prot ... | 1991 | 1667012 |
| identification of a 170-kda protein associated with the vacuolar na+/h+ antiport of beta vulgaris. | the effect of the addition of amiloride to the growth medium was tested on the na+/h+ antiport activity of tonoplast vesicles isolated from sugar beet (beta vulgaris l.) cell suspensions. cells grown in the presence of nacl and amiloride displayed an increased antiport activity. analysis of the kinetic data showed that while the affinity of the antiport for na+ ions did not change, the maximal velocity of the na+/h+ exchange increased markedly. these results suggest the addition of more antiport ... | 1991 | 1662387 |
| the influence of timing and the addition of urea to supplements containing dl-methionine on ruminal fermentation and cow weight change in beef cows. | a study was conducted to determine an optimal time for supplementation of dl-methionine in relation to time of forage intake by mature british breed-type crossbred cows, and two other experiments were conducted to determine whether ruminal ammonia concentration limited changes in disappearance rates in situ and ruminal functions caused by supplements containing dl-methionine. experiments 1 and 2 used 4 x 4 latin square designs with four cows in each experiment. treatments in exp. 1 were no suppl ... | 1991 | 1661284 |
| the cytochrome oxidase ii gene in mitochondria of the sugar-beet beta vulgaris l. | we have cloned and analyzed the sugar-beet mitochondrial gene for cytochrome oxidase subunit ii (coxii). the sugar-beet and its deduced amino acid sequence were compared to its homologous coxii gene sequences from both monocot and dicot plants. it was found to be highly conserved (89-95%) compared to homologue in other plant species. the 780 bp coding sequence of the sugar beet coxii gene is interrupted at position 383 by a 1463 bp intron. this intron contains an additional 107 bp sequence that ... | 1991 | 1653062 |
| the effects of sugar-beet fibre and wheat bran on iron and zinc absorption in rats. | 1991 | 1652283 | |
| genomic organization and sequence analysis of the cytochrome oxidase subunit ii gene from normal and male-sterile mitochondria in sugar beet. | we have cloned and sequenced the cytochrome oxidase subunit ii (coxii) gene from both normal and cytoplasmic male-sterile (cms) sugar beet. the normal coxii (designated ncoxii) locus was found to be located 1491 bp upstream from the gene for cytochrome oxidase subunit i (coxi) on the same dna strand and to have a 1463 bp intron which split the coding sequence into two exons (382 and 398 bp). the coxii protein contains 260 amino acid residues. we have also found two copies of the coxii gene (scox ... | 1991 | 1651175 |
| effect of type of fiber on the rate of passage and on the contribution of soft feces to nutrient intake of finishing rabbits. | one hundred thirty new zealand white x california rabbits were used to study the influence of the source of dietary fiber on several digestive criteria. five diets were formulated to provide 10% crude fiber (cf) on a dm basis. sixty percent of this dietary fiber was supplied by alfalfa hay, citrus pulp, beet pulp, grape marc, or rice hulls in the diets. weights of cecal contents, cecal ammonia concentration, and molar proportion of acetic acid in diets including pulps were higher and cecal level ... | 1991 | 1649153 |
| apolipoprotein b gene expression in rat intestine. the effect of dietary fiber. | the effect of the dietary fiber on apo b mrna level was studied in the intestine of rats that were fed either fiber-free or high-fiber (30% sugar-beet fiber) low-fat diets for 3 weeks. the fiber diet studied does not affect jejunal apo b mrna levels but decreases the level of ileal apo b mrna. in the rat cecum, in both fiber-free and fiber groups, we failed to detect the apo b mrna. the test fiber diet feeding markedly increased fecal bile salt and cholesterol excretions. we suggest that dietary ... | 1991 | 1647973 |
| effect on lipid metabolism of beet fibre in desert nomads with low habitual fibre intake. | the present study was conducted to test the efficacy of fibre supplementation for hypercholesterolaemia in subjects from the desert nomads. ten males (53 +/- 8 years of age) participated in this study which consisted of three phases: baseline-1 period (2 weeks) in which subjects were on their normal, habitual dietary intake, followed by a period of fibre supplementation (5 weeks) in which subjects were supplemented with 26 g fibre/d, and baseline-2 period (4 weeks) in which fibre supplement was ... | 1991 | 1646710 |