Publications
Title | Abstract | Year Filter | PMID(sorted descending) Filter |
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polyploidy and domestication: the origin and survival of polyploids in cytotype mixtures. | the origin and survival of a polyploid in a mixture of this polyploid and its parent(s) is reviewed. with several examples a picture is drawn of the interference of cytotypes in a mixture of cytotypes. some natural polyploids, both wild and domesticated, are very successful. they, like bread wheat and banana, largely replaced their parents. the same is true for some artificial polyploids like autotriploid hybride sugar beet in europe and autotetraploid perennial ryegrass. but when grown together ... | 1979 | 550834 |
[some properties of anti-bradykinin substance from beet (beta vulgaris l. var. rapa dumort. f. rubra dc.) roots (author's transl)]. | 1979 | 536892 | |
soil populations of rhizoctonia solani from areas of health and diseased beets within four sugarbeet fields differing in soil texture. | both debris isolation and beet seed colonization methods were used to ascertain rhizoctonia solani populations in areas of healthy (ah) and rhizoctonia crown rot diseased (da) sugarbeets within four fields differing in soil texture over a 1-year period (august 1976 to july 1977). inoculum densities were initially (august-october) higher in da than in ah, but declined over the winter to levels similar to ah by june. as ascertained by the debris isolation method, ah populations remained low (mostl ... | 1990 | 526886 |
determination of endotoxins in sugar with the limulus test. | the limulus amebocyte lysate test has been used for determination of pyrogens in sugar of different qualities. all the samples of domestic white sugar and beet raw sugar produced in sweden during 1976 had a very low content of endotoxins, less than 10 ng/g of sugar. imported cane raw sugar was, however, highly contaminated. the highest value obtained corresponds to about 100 mg of escherichia coli endotoxin per g of raw sugar. such crude sugar cannot, even after refining, be used for medical pur ... | 1979 | 526016 |
[yeasts in beet sugar production]. | 2006 | 481271 | |
the location of acid invertase activity and sucrose in the vacuoles of storage roots of beetroot (beta vulgaris). | vacuoles were isolated from freshly cut slices of the storage roots of beetroot (beta vulgaris), and from slices that had been washed in aerated water for 1-3 days. the unique vacuolar location of betanin permitted the use of a correlative method to determine whether sucrose and acid invertase were located in the vacuoles. the specific content (the activity of the enzyme or amount of substrate per mg of protein) and the percentage recoveries for betanin, sucrose and acid invertase were determine ... | 1979 | 454363 |
superiority of a soil debris isolation method over a beet seed colonization method for assay of rhizoctonia solani at high soil inoculum densities. | a quantitative soil debris isolation method (all debris from known weight of soil plated) and a garden beet seed saprophytic colonization method were compared over a 1-year period for assaying rhizoctonia solani population. four fields of different soil textures were selected. within each field four areas of healthy and four areas of diseases (rhizoctonia root and crown rot) sugarbeets were sampled bimonthly from august 1976 until june 1977. the maximum numbers of r. solani colonies obtained by ... | 1979 | 427651 |
[new toxins from aspergillus fumigatus fresenius]. | a strain of aspergillus fumigatus fres., isolated from sugar-beet draffs, synthesizes in vitro four toxic metabolites which have not yet been described in these fungal species. toxic effects of the most abundant of these metabolites "fumitoxin a" have been studed on chick embryo. artemia salina larvae, cell cultures, and on mice. | 1978 | 418904 |
[effect of wood waste on the digestibility of glycides and level of volatile fatty acids in sheep]. | sheep were subject to an experiment concerning the effect of treated beech sawdust and thickened aqueous hydrolyzate of beech wood (xylocel) on the digestibility of glycides and on the level of volatile fatty acids (vfa) in the rumen content. the results prove that the use of treated beech sawdust as a replacer for ground barley straw favourably influenced the digestibility of monosaccharides, cellulose, lignin and total dry matter of the diet. sawdust reduced the concentration of total vfa in t ... | 1977 | 413245 |
biochemical and serological comparisons between carnation yellow fleck virus and sugar beet yellows virus protein subunits. | 1977 | 402744 | |
quantitative study on anomeric forms of glucose produced by alpha-glucosidases. | anomeric forms of glucose produced from phenyl alpha-maltoside, maltose, or phenyl alpha-glucoside have been determined quantitatively by simultaneous measurements of optical rotation and reducing power, for eight kinds of glucose-producing 1,4-alpha-glucosyl hydrolases, including glucose-forming amylase from human urine, and alpha-glucosidases from pig serum, honey bee, buckwheat seed, rice seed, sugar beet seed, flint corn seed, and brewer's yeast. all the eight enzymes studied were found to p ... | 1979 | 376499 |
anti-bradykinin activity found in beet (beta vulgaris l. var rapa dumort. f. rubra dc.). | 1975 | 241497 | |
purification and properties of s-adenosyl-l-methionine: caffeic acid o-methyltransferase from leaves of spinach beet (beta vulgaris l). | 1. an enzyme catalysing the methylation of caffeic acid to ferulic acid, using s-adenosyl-l-methionine as methyl donor, has been extracted from leaves of spinach beet and purified 75-fold to obtain a stable preparation. 2. the enzyme showed optimum activity at ph 6.5, and did not require the addition of mg2+ for maximum activity. 3. it was most active with caffeic acid, but showed some activity with catechol, protocatechuic acid and 3,4-dihydroxybenzaldehyde. the km for caffeic acid was 68 mum. ... | 1975 | 241400 |
membrane-bound potassium and magnesium ion-stimulated inorganic pyrophosphatase from roots and cotyledons of sugar beet (beta vulgaris l). | 1. the 25 000-30 000 x g fraction from sugar beet leaf or roots contains, together with (na+ plus k+)-activated atpase, also k+-stimulated inorganic pyrophosphatase. 2. this inorganic pyrophosphatase is also stimulated by rb+ and to a lesser degree by li+ and na+. 3. na+ is at the same time an inhibitor to the k+-stimulation of the inorganic pyrophosphatase. 4. no signs of synergism for (na+ plus k+) were found. 5. optimum ph was at about 8.5. | 1975 | 240414 |
kinetic studies on the hydroxylation of p-coumaric acid to caffeic acid by spinach-beet phenolase. | 1. a spectrophotometric assay is described that enables the hydroxylation of p-coumaric acid to caffeic acid, catalysed by spinach-beet phenolase, to be followed continuously. 2. initial-velocity and inhibitor studies indicate that the order of substrate addition is oxygen, p-coumaric acid and electron donor, with an irreversible step separating the binding of each substrate. 3. caffeic acid is most likely to act as electron donor at the active site; other electron donors, such as ascorbic acid, ... | 2003 | 170916 |
[changes in the digestibility of constituents of the diet in the rabbit]. | fiber digestibility of two diets (the first based on alfalfa dried, the second based on beet-pulp dried) with the same level of crude fiber and crude protein was measured on rabbits of 6, 7, 11, 13 and 17 weeks old. the age has no significative effect on digestibility (dry matter, organic matter, crude fiber) of the two experimental diets. the quantity of cellulose and hemicellulose digested was greater in rabbits on the pulp diet. independantly of the diet hemicellulose is more digestible than ... | 1978 | 153189 |
[causes of poisoning during work in sugar beet fields following the use of polychloropinene]. | 1978 | 146634 | |
[tularemia infection rate and evaluation of the risk of the infection being contracted by workers of sugar-refineries processing surag-beet from areas of its endemic incidence (author's transl)]. | 1976 | 132284 | |
[vitamin c levels in the early postnatal period in calves and their mothers]. | the dynamics of l-ascorbic acid was studied in 68 cows and 91 calves at an age from one to ten days in the period from november to april. the study was conducted in two maternal stocks in a supply area of a large-capacity calf-house located in the beet-growing region. l-ascorbic acid in the blood serum was determined accoring to king. the lowest average levels of l-ascorbic acid were found in february (cows 0.35 mg%, calves 1.02 mg%), and the highest in april (cows 1.00 mg%, calves 2.52 mg%). th ... | 1979 | 115127 |
effect of various nitrogen salts in beet pulp medium on polygalacturonase activity of penicillium sp. 7/4b/ei 1 mutant. | the highest pg activity was obtained in beet pulp with (nh4)2hpo4 in amount equivalent to 0.14--0.28% n after 7 days of growth; at optimal concentration, (nh4)2hpo4 did not influence the biomass production, but increased the ph of the culture media to above 6.0. the pg was an extracellular enzyme, acting mainly on highly esterified pectin. the attack was of a random manner, characteristic for the endo-enzymes. the enzyme was active at temperature 20 degrees c--40 degrees c and ph 5.0--6.0. | 1978 | 81597 |
the synthesis of pectinases by mutant of aspergillus niger 36 in beet pulp medium. | 1976 | 65114 | |
relationship between beet root pigment and uric acid crystals. | 1976 | 56329 | |
influence of the addition of urea to a low-protein diet on plasma amino acids and other metabolites in growing bulls fed sugar beet silage. | 1978 | 33511 | |
[possibility of using higher plants in a life-support system on the moon]. | the paper discusses the possibility of repeated termination of plant vegetation by prolonged darkness approximating the lunar night. this may be helpful for the incorporation of higher plants into the life support system of lunar bases, the solar light being used for illumination. in this connection vegetables (beet bordeaux, turnip petrovskaya, carrot chantanet, dill, radish virovsky white) and wheat (variety sonora) were cultivated during the lunar light-dark cycle (i. e. 15 day light: 15 day ... | 1999 | 26823 |
alpha-l-arabinofuranosidase from rhodotorula flava. | an alpha-l-arabinofuranosidase (ec 3.2.1.55) from the culture fluid of rhodotorula flava ifo 0407 grown on beet arabinan as a carbon source has been highly purified. the purified enzyme has a ph optimum of 2.0. the enzyme is unusually acid stable, retaining 82% of its activity after being maintained for 24 h at ph 1.5 and at 30 degrees c. the apparent km and vmax values of the enzyme for phenyl alpha-l-arabinofuranoside were determined to be 9.1 mm and 72.5 mumol per min per mg of protein, respe ... | 1978 | 25260 |
the stability properties of golden beet and red beet pigments: influence of ph, temperature, and some stabilizers. | golden beet (beta vulgaris var. lutea) color was found to contain 8 components, of which the most important seemed to be vulgaxanthin-i and -ii. purified vulgazanthin -i solutions are easily degraded at high temperatures. the stability is, however, strongly dependent on ph: the stability is best at ph values between 5 and 6, the poorest at low ph values, but at ph 7 the stability is better than that of betanin. vulgaxanthin-i is more stable in the raw extract than in a purified solution. edta, e ... | 1997 | 24312 |
study of the nature of the associated microflora in the prolonged substrateless cultivation of beet plants. | the purpose of the present investigation was to study variations in the population density of microorganisms, their qualitative and quantitative composition during substrate-free cultivation of beats. the results obtained show that the microbial number in the nutrient solution increased by the time of intensive growth of beats and decreased by the time of harvesting. the number of root microorganisms was much greater than the total number of microorganisms in the nutrient solution. oligonitrophi ... | 1977 | 17774 |
[study of betacyanin-discolorating enzyme]. | an enzyme catalyzing the discoloration and breakdown of betacyanins was isolated from beet roots beta vulgaris by centrifugation in sucrose density gradient (2.5 m, 2.0 m, 1.5 m, 1.0 m, tris-hcl buffer, 0.05 m, ph 7.2), and purified 100-fold. the enzyme activity induced the discoloration of betanin, betanidin. it was found that the beet root enzyme exists in an insoluble state and is firmly bound with subcellular structures, which were isolated by centrifugation in sucrose gradient. the optimal ... | 1976 | 17435 |
the effect of iron, tin, aluminium, and chromium on fading, discoloration, and precipitation in berry and red beet juices. | the effect of iron(ii), tin(ii), aluminium(iii), and chromium(iii) on the properties of red whortleberry, blackcurrant, and red beet juices was followed during storage for 10 months at 5 degrees c. the colour and ph changes were studied, and the precipitates formed were weighed and their metal contents assayed. of the metals tested, only tin caused bluish discoloration in the berry juices. in the case of iron, aluminium, and chromium the low ph prevented this type of discoloration. in berry juic ... | 1977 | 16411 |
purification and properties of s-adenosyl-l-homocysteine hydrolase from leaves of spinach beet. | 1976 | 3135 | |
hydroxylation of p-coumaric acid by illuminated chloroplasts. the role of superoxide. | 1. chloroplasts isolated from leaves of spinach-beet (beta vulgaris l. ssp. vulgaris) do not catalyse the hydroxylation of p-coumaric acid in the dark unless a reductant (such as ascorbate, nadh or nadph) is added. superoxide dismutase has no effect on this reaction. 2. illuminated chloroplasts catalyse the hydroxylation in the absence of added reductant. this reaction is completely inhibited by superoxide dismutase, but catalase has little effect. 3. both hydroxylation in the light and hydroxyl ... | 1975 | 235 |