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effect of field inoculation with sinorhizobium meliloti l33 on the composition of bacterial communities in rhizospheres of a target plant (medicago sativa) and a non-target plant (chenopodium album)-linking of 16s rrna gene-based single-strand conformation polymorphism community profiles to the diversity of cultivated bacteria.fourteen weeks after field release of luciferase gene-tagged sinorhizobium meliloti l33 in field plots seeded with medicago sativa, we found that the inoculant also occurred in bulk soil from noninoculated control plots. in rhizospheres of m. sativa plants, s. meliloti l33 could be detected in noninoculated plots 12 weeks after inoculation, indicating that growth in the rhizosphere preceded spread into bulk soil. to determine whether inoculation affected bacterial diversity, 1,119 bacteria were ...200010919821
prevalence of atopy in students from málaga, spain.epidemiologic studies are necessary to determine the prevalence of allergic diseases. this varies widely depending on allergen preparations and patients studied.19989532972
nutritional and toxic factors in selected wild edible plants.nutritional (ascorbic acid, dehydroascorbic acid and carotenes); antinutritional and toxic components (oxalic acid, nitrate and erucic acid) were determined in sixteen popular species of wild edible plants which are collected for human consumption in southeast spain. ascorbic + dehydroascorbic acids contents were very high in several species, especially in chenopodium album l. (155 mg/100 g). carotenoid content ranged from 4.2 mg/100 g (stellaria media villars) to 15.4 mg/100 g (amaranthus virid ...19979527345
occupational asthma induced by garlic dust.garlic dust has not been a frequently encountered cause of ige-mediated disease.19979438479
effect of home processing and storage on ascorbic acid and beta-carotene content of bathua (chenopodium album) and fenugreek (trigonella foenum graecum) leaves.the present investigation was conducted to study the effect of selected processing and storage methods on the concentration of ascorbic acid and beta-carotene in bathua and fenugreek leaves. methods included storage of leaves with or without polythene bags for 24 and 48 h in a refrigerator at 5 degrees c; at 30 degrees c in polythene bags; drying (sun and oven); blanching (5, 10, 15 min); open pan and pressure cooking. ascorbic acid content of fresh leaves was 220.97 to 377.65 mg and beta-carote ...19979373874
cloning and characterization of a cdna encoding a bacteriophage-type rna polymerase from the higher plant chenopodium album.we have cloned a full-length cdna from the higher plant chenopodium album coding for a single subunit bacteriophage-type rna polymerase. the cdna isolated from an actively growing cell suspension culture recognized a 3.8 kb transcript on northern blots. the open reading frame comprises 987 amino acids with a predicted molecular mass of 112 kda. a comparison of the protein sequence with those of the two known fungal mitochondrial rna polymerases, from saccharomyces cerevisiae and neurospora crass ...19979171081
high content, size and distribution of single-stranded dna in the mitochondria of chenopodium album (l.).mitochondrial (mt) dna of higher plants is unique in its large size and complexity. we report here a hitherto unknown feature, the presence of large quantities of single-stranded (ss) dna. about 2.0-8.5% of the chromosomal mtdna from a suspension culture (depending on the growth stage) and 6.5% of the chromosomal mtdna from whole plants of chenopodium album were found to be in ss form by dot-blot hybridization after neutral transfer. similar amounts of ss mtdna were observed by binding of the si ...19979154985
pattern of immediate type hypersensitivity reactions in the eastern province, saudi arabia.in the period between july, 1992, and july, 1994, 1,159 patients in our allergy clinic tested positive to one or more inhalants. the nationalities of the population tested included 806 saudi arabs and 241 western expatriates (mainly north americans). the others were of various different nationalities.19979109711
investigation of plant organellar dnas by pulsed-field gel electrophoresis.mitochondrial (mt) dnas from several higher-plant species (arabidopsis thaliana, beta vulgaris, brassica hirta, chenopodium album, oenothera berteriana, zea mays) were separated by pulsed-field gel electrophoresis (pfge). hybridization of the separated dna with mtdna-specific probes revealed an identical distribution of mtdna sequences in all cases: part of the dna formed a smear of linear molecules migrating into the gel, the rest remained in the well. hybridization signals in the compression z ...19958590487
effect of domestic processing on total and extractable calcium and zinc content of bathua (chenopodium album) and fenugreek (trigonella foenum graecum) leaves.bathua (chenopodium album) and fenugreek (trigonellafoenum graecum) stored in polyethylene bags and without packaging for 24 or 48 hours in a refrigerator at 5 or 30 degrees c in polyethylene bags. the fresh leaves were also dried (oven and sun); blanched (5, 10 or 15 min) and cooked in an open pan and a pressure cooker. the processed leaves were analyzed for total and extractable calcium and zinc content. the ca and zn content of these leaves varied from 970 to 2230 and 10.50 to 12.30 mg/100 g ...199910517284
topoisomerase activity in mitochondrial lysates of a higher plant (chenopodium album l.).we describe an in vitro system for detection of topoisomerase activity from lysed mitochondria. mitochondria were isolated from a suspension of cultured chenopodium album cells. we observed a high activity in relaxation of negatively supercoiled dna (pbr322). addition of atp had no effect on the activity. topoisomers obtained from negatively supercoiled dna were identical with topoisomers produced by the topoisomerase i of e. coli. the mitochondrial activity was dependent on the presence of mg2+ ...19921332721
cross-reactivity among chenopodiaceae and amaranthaceae.pollen extracts from atriplex latifolia, beta vulgaris, salsola kali and amaranthus retroflexus were compared with an extract from chenopodium album by both in vivo and in vitro methods. skin prick tests on 20 c. album-sensitive patients were positive with all extracts. rast inhibition together with two-dimensional immunoelectrophoresis and two-dimensional radioimmunoelectrophoresis indicate that common allergenic determinants are present. electrophoretic transfer for detection of ige binding mo ...19852581481
on the origin of plastids.the buoyant density in cscl of ribosomes from chloroplasts of the green alga chlorella pyrenoidosa and two species of higher plants, pisum sativum and chenopodium album, has been studied. from the relative protein content it was calculated that 70s ribosomes from chloroplasts are much smaller than 80s cytoplasmic ribosomes (3.0-3.1 x 10(6) and 4.0 x 10(6) daltons) and slightly larger than 70s ribosomes from bacteria (e. coli 2.5 x 10(6) daltons). chloroplast ribosomes from pea seedlings were ana ...19751103046
antipruritic and antinociceptive effects of chenopodium album l in mice.the ethanolic extract from the fruits of chenopodium album l. (fcal), orally administered at doses of 100-400 mg/kg, dose-dependently inhibited scratching behavior induced by 5-ht (10 micro g per mouse, s.c.) or compound 48/80 (50 micro g per mouse, s.c.) in mice. but it failed to affect hind paw swelling induced by 5-ht or compound 48/80 in mice at doses of 100 and 200 mg/kg and only showed a relatively weak inhibition on the swelling at a higher dose of 400 mg/kg. in addition, fcal (200 and 40 ...200212065158
common environmental allergens causing respiratory allergy in india.respiratory allergy affects all age groups but the children are the worst affected by the respiratory allergy. bioparticles from different biological sources are the main cause of allergy. pollen grains, fungal spores, insect and other materials of biological origin form the most important allergen load in the air. for the efficient diagnosis of the allergy and its effective treatment it is very important to know about the prevalence, seasonal and annual variations of aeroallergens of the area. ...200212003301
identification and characterization of che a 1 allergen from chenopodium album pollen.pollinosis to chenopodium album has been reported, but no data are available on its allergenic proteins.200211893853
a comparison between pyridinic and non-pyridinic extraction of allergenic materials.the effect of addition of pyridine in the extracting solvent of allergenic materials was studied in the following substances. dermatophagoides farinae, chenopodium album, parietaria judaica, phleum pratense, poa pratensis, and secale cereale. pyridinated extracts differed significantly in protein content, isoelectric focusing profile, and allergenic activity from the non-pyridinated extracts. on the other hand, no difference was detected between both extraction systems when their adsorption capa ...19863946840
weeds as a source of plant growth promoting rhizobacteria in agricultural soils.the influence of plant growth promoting (pgp) activity of bacterial communities recovered from each of six weed species (barnyard grass (echinochloa crusfalli (l.) beauv.), corn spurrey (spergula arvensis l.), goldenrod (sonchus sp.), italian ryegrass (lolium multiflorum l.), lamb's-quarters (chenopodium album l.), and quack grass (agropyron repens (l.) beauv.)) was examined in relation to the effect it had on the growth of the potato cultivar russet burbank. bacterial species composition and co ...200111766050
the impact of host plant on the abundance and function of symbiotic bacteria in an aphid.the black-bean aphid aphis fabae bears populations of coccoid symbiotic bacteria buchnera spp. at 2.0-3.2 x 10(7)cells mg(-1)aphid mass and rod-shaped secondary symbionts of uncertain taxonomic affiliation at 0.1-0.6 x 10(7)cells mg(-1)aphid mass. buchnera provides essential amino acids, supplementing the poor supply in the aphid diet of plant phloem sap. comparison of the performance of a. fabae containing and experimentally deprived of their bacteria showed that the bacteria caused increased l ...200111551991
phage t4-like intermediates of dna replication and recombination in the mitochondria of the higher plant chenopodium album (l.).we have studied intermediates of the recombination and replication of chromosomal mitochondrial (mt) dna prepared from suspension cultured cells of chenopodium album (l.) by electron microscopy during the whole growth cycle. we identified several types of potential recombination and replication intermediates including rosette-like structures, as well as other branched and sigma-like molecules. the absolute and relative amounts of these structures changed dramatically during the growth cycle, ind ...200010853767
strand switching during rolling circle replication of plasmid-like dna circles in the mitochondria of the higher plant chenopodium album (l.).the structure of sigma-like mitochondrial dna molecules prepared from suspension cultured cells of chenopodium album (l.) was studied by electron microscopy. these molecules were highly variable in size, ranging from about 1 to 104 kb, and had single- and double-stranded regions typical for rolling circle replicating intermediates. partial denaturation studies confirmed that these structures constitute rolling circles. close inspection of the circle-tail junctions of the replication fork at high ...200010686137
trans-4-aminoproline, a phytotoxic metabolite with herbicidal activity produced by ascochyta caulina.a phytotoxic metabolite, characterized through nmr techniques and synthetic methods as trans-4-aminoproline, was isolated from the culture filtrates of ascochyta caulina, a promising mycoherbicide for biological control of chenopodium album. the metabolite, which shows interesting phytotoxic properties, together with ascaulitoxin (recently characterized as n.2-beta-d-glucoside of the unusual bis-amino acid 2,4,7-triamino-5-hydroxyoctandioc acid) and another unidentified compound, compose an acti ...200010680176
[hypersensitivity to weed pollen allergens in the region of bygdoszcz].case records of 8576 patients suffering from hypersensitivity symptoms within upper airways, who were treated at the otolaryngological section of the allergological outpatient department of medical academy in bydgoszcz in the years 1975-1989, were analysed. pollinosis was diagnosed through anamnesis, physical examination and skin tests in 2561 (29.9%) individuals, i.e. 1153 women and 1408 men. hypersensitivity to weed pollen allergens was found in 1069 (12.5% of all people examined) patients wit ...19938401342
r-loop-dependent rolling-circle replication and a new model for dna concatemer resolution by mitochondrial plasmid mp1.the mitochondrial (mt) plasmid mp1 of chenopodium album replicates by a rolling-circle (rc) mechanism initiated at two double-stranded replication origins (dso1 and dso2). two-dimensional gel electrophoresis and electron microscopy of early mp1 replication intermediates revealed novel spots. ribonucleotide (r)-loops were identified at dso1, which function as a precursor for the rcs in vivo and in vitro. bacteriophage t4-like networks of highly branched mp1 concatemers with up to 20 monomer units ...200212065425
determination of ascochyta caulina phytotoxins by high-performance anion exchange chromatography and pulsed amperometric detection.a simple and sensitive method has been developed for the rapid qualitative and quantitative analysis of the phytotoxins produced by ascochyta caulina, a potential mycoherbicide for the biocontrol of chenopodium album. considering that the two main toxins produced by this fungus, namely ascaulitoxin and trans-4-amino-d-proline, and the third toxin, identified as 2,4,7-triamino-5-hydroxyoctandioic acid, have an amino acid nature, high-performance anion exchange chromatography with pulsed amperomet ...200111793817
overwintering locations and hosts for onion thrips (thysanoptera: thripidae) in the onion cropping ecosystem in new york.identifying locations where onion thrips, thrips tabaci lindeman (thysanoptera: thripidae), overwinter and subsequently disperse is important for designing control strategies. in upstate new york from 2003 through 2006, potential overwintering sites in the commercial onion, allium cepa l., cropping system were investigated early in the spring before onion seedling emergence and again late in the season after onions were harvested. onion thrips adults were sampled directly from the soil and indir ...200717849870
essential oils from mediterranean lamiaceae as weed germination inhibitors.the essential oils obtained from rosemary (rosmarinus officinalis l.), thyme (thymus vulgaris l.), and savory (satureja montana l.) and the four monoterpenes that are their major constituents have been analyzed by gc and gc-ms and tested for their allelopathic properties on the seeds of three different annual weeds (chenopodium album, portulaca oleracea, and echinochloa crus-galli) and three crops (raphanus sativus, capsicum annuum, and lactuca sativa), with the aim to evaluate in vitro their po ...200314518938
ribosome-inactivating activity and cdna cloning of antiviral protein isoforms of chenopodium album.we have characterized a novel type i ribosome-inactivating protein (cap30) from the leaves of chenopodium album. purified native cap30 depurinated the ribosomes of chenopodium, tomato, and tobacco leaves in vitro. to further characterize this protein, cdna clones were isolated from a leaf cdna library using a dna probe derived from the n-terminal amino acid sequence. two full-length cdna clones, cap30a and cap30b, were isolated. the two clones were highly homologous (91.4% identity over 280 amin ...200415055531
profilin (che a 2) and polcalcin (che a 3) are relevant allergens of chenopodium album pollen: isolation, amino acid sequences, and immunologic properties.little is known about the molecular properties of chenopod allergens. recently, profilin and 2 ef-hand calcium-binding protein (polcalcin) have been shown to play a role in chenopod pollinosis.200415208604
compendium of dietary sources of vitamin a in the thar desert.the undisputed long term solution to prevent nutritional blindness lies in changing the dietary habits of a given population through nutritional education, nutritional supplementation, and nutritional rehabilitation. before such strategies can be successfully implemented, it becomes necessary to study the existing dietary pattern of the population and to identify locally grown foods rich in vitamin a. seventy eight rural women were interviewed to determine the common dietary items in western raj ...19921300300
herbicide-resistant crops and weed resistance to herbicides.the adoption of genetically modified (gm) crops has increased dramatically during the last 3 years, and currently over 52 million hectares of gm crops are planted world-wide. approximately 41 million hectares of gm crops planted are herbicide-resistant crops, which includes an estimated 33.3 million hectares of herbicide-resistant soybean. herbicide-resistant maize, canola, cotton and soybean accounted for 77% of the gm crop hectares in 2001. however, sugarbeet, wheat, and as many as 14 other cr ...200515668920
cloning of chlorophyllase, the key enzyme in chlorophyll degradation: finding of a lipase motif and the induction by methyl jasmonate.chlorophyllase (chlase) is the first enzyme involved in chlorophyll (chl) degradation and catalyzes the hydrolysis of ester bond to yield chlorophyllide and phytol. in the present study, we isolated the chlase cdna. we synthesized degenerate oligo dna probes based on the internal amino acid sequences of purified chlase from chenopodium album, screened the c. album cdna library, and cloned a cdna (caclh, c. album chlorophyll-chlorophyllido hydrolase). the deduced amino acid sequence (347 aa resid ...199910611389
cpg immunotherapy in chenopodium album sensitized mice: the comparison of ifn-gamma, il-10 and ige responses in intranasal and subcutaneous administrations.abstract:200818799001
nitrate poisoning in cattle fed chenopodium album hay.three cows fed chenopodium album hay died 30 min after showing ataxia, bluish-brown mucous membranes, rapid and difficult breathing, increased heart rates, tremors and coma. brown-colored and badly coagulated blood was the prominent necropsy finding. slight pulmonary edema was prominent and all visceral organs were hyperemic. the hay contained 2,500 ppm nitrate-nitrogen and 11 ppm nitrite nitrogen.200312678293
oxalate, calcium and ash intake and excretion balances in fat sand rats (psammomys obesus) feeding on two different diets.fat sand rats psammomys obesus feed exclusively on plants of the family chenopodiaceae, which contain high concentrations of chloride salts (nacl, kcl) and oxalate salts. ingestion of large quantities of oxalate is challenging for mammals because oxalate chelates ca(2+) cations, reducing ca(2+) availability. oxalate is a metabolic end-point in mammalian metabolism, however it can be broken-down by intestinal bacteria. we predicted that in fat sand rats microbial breakdown of oxalate will be subs ...200515922640
[sensitization to castanea sativa pollen and pollinosis in northern extremadura (spain)].castanea sativa pollen allergy has generally been considered to be uncommon and clinically insignificant. in our geographical area (plasencia, cáceres, spain) castanea sativa pollen is a major pollen.200515946627
[the frequency of pollen allergy at the population of sarajevo region during the 2002 year].the frequency of pollen alergy in the sample of population of sarajevo region during the 2002 year has been investigated. the age and gender population has been different. for determination of allergy has been use of standard test carryed out in the respective laboratories of clinical center of university of sarajevo. the testing has been on the pollen of weed plant species and grass (graminejae) pollen. in the mixture of pollen weed plant species have been following plants: plantago lanceolata ...200516018386
contrasting effects of manure and compost on soil ph, heavy metal availability and growth of chenopodium album l. in a soil contaminated by pyritic mine waste.chenopodium album l. was found to be one of the initial plant species colonising a heavy metal-contaminated site, polluted by pyritic (sulphide-rich) waste from the aznalcóllar mine spill (south-western spain). this indicates its importance in the re-vegetation of this soil. in a pot experiment, c. album was sown in soil collected from the contaminated site, either non-amended or amended with cow manure or compost produced from olive leaves and olive mill wastewater, in order to study the effect ...200415312738
sensitization to common allergens, especially pollens, among children with respiratory allergy in the trakya region of turkey.asthma and allergic rhinitis are common problems in children and the causative pollen allergens vary according to the geographical area. the aim of this study was to investigate patterns of sensitization to common inhalant allergens, especially pollens, in turkish children living in the trakya region and to determine differences between rural and urban areas. allergen skin testing was prospectively performed on 539 children aged between 4 and 17 years with respiratory allergy. the reaction was c ...200415783130
bacterial gut symbionts contribute to seed digestion in an omnivorous beetle.obligate bacterial symbionts alter the diets of host animals in numerous ways, but the ecological roles of facultative bacterial residents that colonize insect guts remain unclear. carabid beetles are a common group of beneficial insects appreciated for their ability to consume insect prey and seeds, but the contributions of microbes to diet diversification in this and similar groups of facultative granivores are largely unknown.201020520762
regulation of ribulose-1,5-bisphosphate carboxylase activity in response to light intensity and co(2) in the c(3) annuals chenopodium album l. and phaseolus vulgaris l.the light and co(2) response of (a) photosynthesis, (b) the activation state and total catalytic efficiency (k(cat)) of ribulose-1,5-bisphosphate carboxylase (rubisco), and (c) the pool sizes of ribulose 1,5-bisphosphate, (rubp), atp, and adp were studied in the c(3) annuals chenopodium album and phaseolus vulgaris at 25 degrees c. the initial slope of the photosynthetic co(2) response curve was dependent on light intensity at reduced light levels only (less than 450 micromoles per square meter ...199016667910
chenopodium album seed extract: a potent sperm-immobilizing agent both in vitro and in vivo.aqueous decoction of chenopodium album seeds (cad) was assessed for its sperm-immobilizing and contraceptive efficacy in laboratory mammals.200717161128
[photosynthetic characteristics and coenological survey of lactuca serriola in its invaded area].lactuca serriola, a national class quarantine object, is a new invasive species in the coastal area of southeast china. the coenological survey showed that because of its big individual, l. serriola could easily form dominant population in its invaded area, and its main accompany species were conyza canadensis, c. bonarinisis, bidentis bipinnata, oenothera laciniata, ipomoea hederacea, setaria viridis, daucus carota, xanthium sibiricum, erigeron annuus, l. indica, humulus scandens, solanum nigru ...200617330472
bioactive constituents from rollinia emarginata (annonaceae).from an argentine collection of the tropical tree rollinia emarginata (annonaceae), vomifoliol, dehydrovomifoliol, blumenol c, loliolide, 7-epiloliolide, vanillin, dihydroactinolide, as well as other common plant constituents were obtained, and identified by their nmr and ms features compared with authentic samples. antifeedant and toxic actions were exerted to the polyphagous moth spodoptera frugiperda by the ethanol extract of the plant, at 250 ppm in the larval diet. additionally, in greenhou ...200717365716
experimental and natural weed host-virus relations.weeds, as alternative hosts of plant viruses and nutrient plants of virus vectors play important role in virus ecology and epidemiology. the aim of our study was to discover new weed-virus relations. therefore some weed species were mechanically inoculated with 28 viruses (strains or isolates) maintained in our glasshouse. different weed species with and without visible symptoms were collected from agro-, water ecosystems and wastelands of hungary between 1997 and 2003. virus infections were eva ...200415759395
wild vascular plants gathered for consumption in the polish countryside: a review.this paper is an ethnobotanical review of wild edible plants gathered for consumption from the end of the 18th century to the present day, within the present borders of poland.200717433114
a pectin methylesterase as an allergenic marker for the sensitization to russian thistle (salsola kali) pollen.chenopodiaceae pollen is considered the main cause of pollen allergy in desert countries and its incidence is world-wide increasing by the desertization of extensive zones. although the correlation between the sensitization to chenopodium album and salsola kali pollens of patients suffering from allergy to chenopodiaceae pollens is high, a significant number of patients exhibited ige sensitivity exclusively towards s. kali.200717581207
organic parasite control for poultry and rabbits in british columbia, canada.abstract: plants used for treating endo- and ectoparasites of rabbits and poultry in british columbia included arctium lappa (burdock), artemisia sp. (wormwood), chenopodium album (lambsquarters) and c. ambrosioides (epazote), cirsium arvense (canada thistle), juniperus spp. (juniper), mentha piperita (peppermint), nicotiana sp. (tobacco), papaver somniferum (opium poppy), rubus spp. (blackberry and raspberry relatives), symphytum officinale (comfrey), taraxacum officinale (common dandelion), th ...201121756341
the dispersal of vascular plants in a forest mosaic by a guild of mammalian herbivores.endozochorous seed dispersal by herbivores can affect plant spatial dynamics and macroecological patterns. we have investigated the number and species composition of viable seeds deposited in faeces of a full guild of macroherbivores (four deer and two lagomorph species) in a forest in eastern britain. one hundred and one plant species germinated from faecal pellet material, 85 of which were among the 247 vascular plant species recorded in the forest. however, three species - chenopodium album, ...200717661087
anthelmintic activity of chenopodium album (l) and caesalpinia crista (l) against trichostrongylid nematodes of sheep.the present study was carried out to determine the anthelmintic activity of caesalpinia crista (l.) (fabaceae) seed kernel and chenopodium album (l.) (chenopodiaceae) whole plant in order to justify their traditional use in veterinary medicine.200717826017
three-dimensional structure of the cross-reactive pollen allergen che a 3: visualizing cross-reactivity on the molecular surfaces of weed, grass, and tree pollen allergens.two ef-hand calcium-binding allergens (polcalcins) occur in the pollen of a wide variety of unrelated plants as highly cross-reactive allergenic molecules. we report the expression, purification, immunological characterization, and the 1.75-a crystal structure of recombinant che a 3 (rche a 3), the polcalcin from the weed chenopodium album. the three-dimensional structure of rche a 3 resembles an alpha-helical fold that is essentially identical with that of the two ef-hand allergens from birch p ...200818250440
immunotherapy of chenopodium album induced asthma by intranasal administration of cpg oligodeoxynucleotides in balb/c mice.there are many therapeutic methods for allergic conditions. cpg oligonucleotides play a critical role in immunity via the augmentation of th1 and suppression of th2 responses.200818319526
co-administration of cpg oligonucleotides and chenopodium album extract reverse igg2a/igg1 ratios and increase ifn-gamma and il-10 productions in a murine model of asthma.asthma is a disorder of increasing severity and prevalence. recent knowledge about the pathogenesis of asthma emphasizes its inflammatory nature. cpg oligonucleotides are a class of compounds containing motifs based on the cytosine-guanine dinucleotides (cpg-odns). these motifs are suppressed in mammalian dna. they induce inflammation in mammals characterized by the induction of t helper type 1 and regulatory responses. in this paper, the effect of cpg dna co-administration with a homemade cheno ...200818322305
potential of olive mill waste and compost as biobased pesticides against weeds, fungi, and nematodes.the phytotoxic and antimicrobial properties of olive mill wastes have been widely investigated and demonstrated over the past decade. however, their potential utilization as biodegradable pesticides against plant pathogens is still poorly understood. in this study, a series of laboratory bioassays was designed to test the inhibitory effects of sterile water extracts of two-phase olive mill waste (tpomw) and tpomw composts with different degrees of stabilization on several different plant pathoge ...200818471866
chenopodium album seed extract-induced sperm cell death: exploration of a plausible pathway.this study was conducted for to explore the plausible pathway of chenopodium album seed extract (cae)-mediated sperm cell death.200818477497
antifungal, phytotoxic and insecticidal properties of essential oil isolated from turkish origanum acutidens and its three components, carvacrol, thymol and p-cymene.the chemical composition of essential oil isolated by hydrodistillation from the aerial parts of origanum acutidens was analyzed by gc-ms. carvacrol (87.0%), p-cymene (2.0%), linalool acetate (1.7%), borneol (1.6%) and beta-caryophyllene (1.3%) were found to be as main constituents. antifungal, phytotoxic and insecticidal activities of the oil and its aromatic monoterpene constituents, carvacrol, p-cymene and thymol were also determined. the antifungal assays showed that o. acutidens oil, carvac ...200818513954
reproduction of pratylenchus penetrans on 24 common weeds in potato fields in québec.twenty-four weeds commonly found in commercial potato fields in quebec were evaluated for their host suitability to the root-lesion nematode, pratylenchus penetrans, under greenhouse conditions. brown mustard (brassica juncea) and rye (secale cereale) were included as susceptible controls and forage pearl millet hyb. cfpm 101 (pennisetum glaucum) as a poor host. pratylenchus penetrans multiplied well on 22 of the 24 weed species tested (pf/pi >/= rye or brown mustard). cirsium arvense, leucanthe ...200719259506
airway allergy and skin reactivity to aeroallergens in riyadh.to determine the pattern of skin prick test reactivity to aeroallergens in patients with asthma and rhinitis (airway allergy) residing in riyadh region.200919271069
summer weeds as hosts for frankliniella occidentalis and frankliniella fusca (thysanoptera: thripidae) and as reservoirs for tomato spotted wilt tospovirus in north carolina.in north carolina, tomato spotted wilt tospovirus (family bunyaviridae, genus tospovirus, tswv) is vectored primarily by the tobacco thrips, frankliniella fusca (hinds), and the western flower thrips, frankliniella occidentalis (pergande) (thysanoptera: thripidae). tswv overwinters in winter annual weeds from which it is spread to susceptible crops in spring. because most susceptible crops are destroyed after harvest before winter weeds emerge in the fall, infected summer weeds are thought to be ...200516539098
effect of fertilization on the weediness of maize in a long-term field experiment.we carried our examination in a long-term fertilization field experiment in 2005. in the experiment we had opportunity to compare the weediness in npk and npk + fym1 treatments, and we could study the effect of increasing n dosis on the weeds and maize. the bi-factorial trial was arranged in split plot design with three replications. the weed survey was made 25 days after seeding in the 27th of may. for the weed survey the balázs-ujvárosi method was applied. after the weed survey we collected al ...200617390821
characterization of the alterations of the chlorophyll a fluorescence induction curve after addition of photosystem ii inhibiting herbicides.the effects of photosystem ii inhibiting herbicides, 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron), atrazine and two novel 2-benzylamino-1,3,5-triazine compounds, on photosynthetic oxygen evolution and chlorophyll a fluorescence induction were measured in thylakoids isolated from chenopodium album (wild type and atrazine-resistant plants) and cyanobacterial intact cells. the resistant plants have a mutation of serine for glycine at position 264 of the d1 protein. diuron and two members of a n ...200316245062
role of the oxidized secondary acceptor qb of photosystem ii in the delayed 'afterglow' chlorophyll luminescence.leaf discs of dark-adapted tobacco plants were excited by 2 flashes and kept in darkness at 20 degrees c for various time periods, then thermoluminescence emission was recorded without freezing the sample. the b band at 30 degrees c decreased with a half-time t1/2 approximately 1 min and the ag band at 45 degrees c with a t1/2 approximately 5 min. this corresponds to the decay kinetics of s2/3 in ps ii centres in the state s2/3 qb - (b band) or s2/3 qb. assuming that the 45 degrees c band is an ...200516049769
chenopodium album prevents progression of cell growth and enhances cell toxicity in human breast cancer cell lines.the present study is aimed to investigate the effects of chenopodium album (leaves) on the growth of estrogen dependent (mcf-7) and estrogen independent (mda-mb-468) human breast cancer cell lines. the different solvent extracts (petroleum ether, ethyl acetate and methanol) were assessed for their cytotoxicity using tbe (trypan blue exclusion) and mtt [3-(4, 5-dimethyl thiazol-2-yl)-2, 5-diphenyl tetrazolium] bioassay. these cells were cultured in mem (minimum essential medium) medium and incuba ...200920592771
platanus pollen allergen, pla a 1: quantification in the atmosphere and influence on a sensitizing population.the allergic response in susceptible patients does not always coincide with the presence and magnitude of airborne pollen counts. the prevalence of allergy to platanus is currently moderate, although the percentage of monosensitized patients is low. this hinders accurate interpretation of the relationship between the amount of pollen inhaled and the patient's symptoms.201020813013
cloning and expression of che a 1, the major allergen of chenopodium album in escherichia coli.chenopodium album is a weedy annual plant in the genus chenopodium. c. album pollen represents a predominant allergen source in iran. the main c. album pollen allergens have been described as che a 1, che a 2, and che a 3. the aim of this work was to clone the che a 1 in escherichia coli to establish a system for overproduction of the recombinant che a 1 (rche a 1). in order to clone this allergen, the pollens were subjected to rna extraction. a full-length fragment encoding che a 1 was prepared ...201020872185
bacterial communities associated with chenopodium album and stellaria media seeds from arable soils.the bacterial community compositions in chenopodium album and stellaria media seeds recovered from soil (soil weed seedbank), from bulk soil, and from seeds harvested from plants grown in the same soils were compared. it was hypothesized that bacterial communities in soil weed seedbanks are distinct from the ones present in bulk soils. for that purpose, bacterial polymerase chain reaction denaturing gradient gel electrophoresis (pcr-dgge) fingerprints, made from dna extracts of different soils a ...201121424277
allelopathic effects of weeds extracts against seed germination of some plants.this study investigated the allelopathic effects of various weeds extracts on seed germination of 11 crop species. most of the weed extracts tested had inhibitory effects on seed germination of common bean, tomato, pepper, squash, onion, barley, wheat, and corn at different application rates as compared with the 10% acetone control. chickpea seed germination was inhibited by extracts of solanum nigrum l., chenopodium album l., and matricaria chamomilla l. (10%, 20% and 22.5%, respectively) at th ...200516161968
argentine folk medicine: genotoxic effects of chenopodiaceae family.chenopodium ambrosioides l. and chenopodium multifidum l. (chenopodiaceae), common name: paico, are medicinal plants. they are aromatic shrubs growing in south america. for centuries, they have been used due to its medicinal properties. however, there are few reports in literature about the genotoxic effects of these plants. there for, the aim of these work is the evaluation of genetic damage induced by decoction and infusion of this plants which were assayed in different concentrations (1, 10, ...200616219440
allergenic differences among pollens of three salsola species.background: sensitivity to chenopodiaceae is a frequent cause of allergic respiratory diseases in geographic areas where sensitization to salsola kali and chenopodium album has been reported. the objective of this study was to evaluate the pattern of sensitization to 3 salsola species in patients residing on the mediterranean coast of south-eastern spain. methods:s. kali, s. vermiculata and s. oppositifolia pollen extracts were prepared. patients reporting respiratory and/or cutaneous symptoms w ...201019786800
nutrient composition, phenolic content and free radical scavenging activity of some uncommon vegetables of pakistan.vegetables play a vital role in the prevention of human disease and in the improvement of general health as these contain vitamins, amino acids, fiber, antioxidants and minerals. in the present study, some less familiar vegetables of pakistan namely chickpea (leaves), chungah (shoots), drumstick tree (inflorescences), radish (fruit pods), mountain ebony (flower buds), mustard (leaves), purslane (leaves) and white goosefoot (leaves and shoots) were evaluated for proximate composition, mineral con ...201121715260
physiological responses and tolerance mechanisms to pb in two xerophils: salsola passerina bunge and chenopodium album l.lead (pb) has great toxicity to human beings and other livings. although there are varied ways to rehabilitate the pb contaminated area, phytoremediation of pb pollution in arid lands is still a difficult task, it is therefore urgent to find and identify pb tolerant plants in arid areas. the physiological responses and tolerance mechanisms to pb stress (expressed as the pb concentration, e.g., 0, 50, 150, 300, 600, 800, 1000mg/l) were investigated for the xerophils salsola passerina bunge and ch ...201122257568
[prevalence of sensitization to aeroallergens in 10 030 patients with allergic rhinitis].to investigate the main inhaled allergens in patients with allergic rhinitis.201122335978
determination of fungal pathogens of common weed species in the vicinity of tokat, turkey.this study was carried out to determine the fungal pathogens on chenopodium album l., cirsium arvense (l.) scop., convolvulus arvensis l., cynodon dactylon (l.) pers., delphinium consolida l., portulaca oleracea l., rumex crispus l., solanum nigrum l., sorghum halepense (l.) pers. and xanthium strumarium l. which were common weed species of agricultural areas. surveys were conducted in may-june and august-september in 2004-2005 growing seasons. during the surveys density and frequency of the abo ...201021542473
survival of weed seeds and animal parasites as affected by anaerobic digestion at meso- and thermophilic conditions.anaerobic digestion of residual materials from animals and crops offers an opportunity to simultaneously produce bioenergy and plant fertilizers at single farms and in farm communities where input substrate materials and resulting digested residues are shared among member farms. a surplus benefit from this practice may be the suppressing of propagules from harmful biological pests like weeds and animal pathogens (e.g. parasites). in the present work, batch experiments were performed, where survi ...201223266071
evaluation of safety margins of chenopodium album seed decoction: 14-day subacute toxicity and microbicidal activity studies.abstract: background: sperm immobilizing activity and plausible mechanism of action of chenopodium album seed decoction (cad) have been elucidated in our earlier studies. the present study has been carried out to explore the safety standards of cad along with microbicidal properties as prerequisite for its use as a topically applicable vaginal contraceptive. methods: the safety standards of cad were assessed by a) hemolytic index determination using rabbit erythrocytes, to set the doses of the o ...201121801392
weed seed bank response to 12 years of different fertilization systems.fertilizer amendments can impact weed populations in a variety of ways. this study evaluated the effects of 12 year-long applications of different fertilization systems on size and composition of the weed seed bank in a conventionally managed maize monoculture field. fertilization systems included all factorial combinations of two dairy cattle slurry rates, three vegetable, fruit and garden waste (vfg) compost rates, and three synthetic n fertilizer rates. soil samples were taken in each subplot ...201021542470
expression of a chimeric allergen with high rare codons content in codon bias-adjusted escherichia coli: escherichia coli bl21 (de3)-codon plus ril as an efficient host.the expression of heterologous proteins in escherichia coli (e. coli) is importantly affected by codon bias. hence, the aim of the current study was to determine which codon bias-adjusted e. coli strain is sufficient for expression of a chimeric allergen coded by high rare codon content. to investigate the expression level, a chimeric protein of chenopodium album (c. album) was used as an appropriate model. an expression construct was assembled and was transformed to four strains of codon bias-a ...201627040822
identification of genes encoding photoconvertible (class i) water-soluble chlorophyll-binding proteins from chenopodium ficifolium.photoconvertible water-soluble chlorophyll-binding proteins, called class i wscps, have been detected in chenopodiaceae, amaranthaceae and polygonaceae plant species. to date, chenopodium album wscp (cawscp) is the only cloned gene encoding a class i wscp. in this study, we identified two cdnas encoding chenopodium ficifolium class i wscps, cfwscp1, and cfwscp2. sequence analyses revealed that the open reading frames of cfwscp1 and cfwscp2 were 585 and 588 bp, respectively. furthermore, both cfw ...201525333387
influence of heterodera glycines on interspecific and intraspecific competition associated with glycine max and chenopodium album.the influence of heterodera glycines (soybean cyst nematode) on the interspecific and intraspecific competition associated with glycine max (soybean) and chenopodium album (common lambsquarters) was studied in 1988 and 1989 in three de wit replacement series experiments in growth chambers and microplots. glycine max was grown alone (1 plant/experimental unit), in intraspecific competition (2 plants/experimental unit), in interspecific competition with c. album, and in presence or absence of h. g ...199519277262
weed hosts of meloidogyne arenaria and m. incognita common in tobacco fields in south carolina.thirty-two weed species common in south carolina and one cultivar of tobacco were evaluated as hosts of meloidogyne arenaria race 2 and m. incognita race 3 in the greenhouse. egg mass production and galling differed (p < 0.05) among weed species. chenopodium album, euphorbia maculata, and vicia villosa were good hosts of m. arenaria. amaranthus palmeri, rumex crispus, amaranthus hybridus, ambrosia artemisiifolia, lpomoea hederacea var. integriuscula, setaria lutescens, sida spinosa, portulaca ol ...198819290313
antifungal activity of methanol and n-hexane extracts of three chenopodium species against macrophomina phaseolina.antifungal activity of methanol and n-hexane leaf, stem, root and inflorescence extracts (1, 2, 3 and 4% w/v) of three chenopodium species (family chenopodiaceae) namely chenopodium album l., chenopodium murale l. and chenopodium ambrosioides l. was investigated against macrophomina phaseolina (tassi) g. goid., a soil-borne fungal plant pathogen that has a broad host range and wide geographical distribution. all the extracts of the three chenopodium species significantly suppressed the test fung ...200919662577
enhancement of fermentable sugar yields by α-xylosidase supplementation of commercial cellulases.although α-linked xylose is a major constituent of the hemicelluloses of land plants, few secreted α-xylosidases have been described from fungi or bacteria. axla of aspergillus niger is a secreted α-xylosidase that was earlier shown to promote the release of free glucose (glc) and xylose (xyl) from substrates containing α-linked xylose, including isoprimeverose (ip), the heptasaccharide subunit of pea xyloglucan (xg), and tamarind xg.201323622347
construction of a recombinant allergen-producing probiotic bacterial strain: introduction of a new line for a live oral vaccine against chenopodium album pollen allergy.during the last two decades, significant advances have been made in the fields of lactococcal genetics and protein expression. lactococcus lactis (l. lactis) is an effective vector for protein expression and can be used as an antigen delivery system. hence, l. lactis is an ideal candidate for mucosal immunotherapy. profilin (che a 2), the major allergen in chenopodium album, is one of the most important causes of allergic diseases in desert and semi-desert areas, especially in iran, saudi arabia ...201326989716
host suitability of 32 common weeds to meloidogyne hapla in organic soils of southwestern quebec.thirty-two weeds commonly found in the organic soils of southwestern quebec were evaluated for host suitability to a local isolate of the northern root-knot nematode meloidogyne hapla under greenhouse conditions. galls were observed on the roots of 21 species. sixteen of the 21 had a reproduction factor (pf/pi = final number of m. hapla eggs and juveniles per initial number of m. hapla juveniles per pot) higher than carrot (pf/pi = 0.37), the major host crop in this agricultural area. tomato cv. ...199619277189
host status of seven weed species and their effects on ditylenchus destructor infestation of peanut.the host suitability to ditylenchus destructor of seven common weed species in peanut (arachis hypogaea) fields in south africa was determined. based on the number of nematodes per root unit, white goosefoot (chenopodium album), feathertop chloris (chloris virgata), purple nutsedge (cyperus rotundus), jimson weed (datura stramonium), goose grass (eleusine indica), khaki weed (tagetes minuta), and cocklebur (xanthium strumarium) were poor hosts. ditylenchus destructor survived on all weed species ...199019287723
possible mechanism of action of antiviral proteins from the leaves of chenopodium album l.antiviral proteins (avps) named cap-i and cap-ii purified from the leaves of chenopodium album cv pusa bathua-1 induced systemic resistance against tobacco mosaic virus (tmv) and sunnhemp rosette virus (srv) in both hypersensitive as well as systemic hosts. an increased accumulation of two polypeptides (approximately 17 kda and approximately 26 kda) was observed in untreated upper leaves of cyamopsis tetragonoloba plants whose basal leaves were treated with cap-i/cap-ii. both avps exhibited ribo ...200422896905
effect of pre-planting irrigation, maize planting pattern and nitrogen on weed seed bank population.pre-planting irrigation and planting patterns are important factors in weed management that effect on seed bank. additionally, the nitrogen is the most important factor in plant growth that affects weed-crop competition and ultimately, seed rain into the soil. a field experiment was conducted to study the effect of nitrogen application rates, pre-planting irrigation and maize planting patterns on weed seed bank population. experimental factors were nitrogen rates at 4 levels (200, 300, 400 and 5 ...201122696965
amaranthaceae pollens: review of an emerging allergy in the mediterranean area.the amaranthaceae family is composed of about 180 genera and 2500 species. these common weeds have become increasingly relevant as triggers of allergy in the last few years, as they are able to rapidly colonize salty and arid soils in extensive desert areas. the genera chenopodium, salsola, and amaranthus are the major sources of pollinosis from the amaranthaceae family in southern europe, western united states, and semidesert areas of saudi arabia, kuwait, and iran. in spain, salsola kali is on ...201425668889
decoupling of light intensity effects on the growth and development of c3 and c4 weed species through sucrose supplementation.light availability has a profound effect on plant growth and development. one of the ways to study the effects of light intensity on plant growth and development without the confounding problem of photosynthate availability is sucrose injection/supplementation. a greenhouse experiment was conducted to evaluate the effects of light levels (0% and 75% shade) and sucrose injection (distilled water or 150 g sucrose l(-1)) on three weed species: redroot pigweed (amaranthus retroflexus l., c4), lambsq ...200212177133
responses of gas exchange to humidity in populations of three herbs from environments differing in atmospheric water.responses to humidity of net photosynthesis and leaf conductance of single attached leaves were examined in populations of herbs from wet soil sites in beltsville, maryland and davis, california, usa. plants were grown in controlled environments under three conditions which differed in the magnitude of the day-night temperature difference and in daytime air saturation deficit. no population differences in response were found in abutilon theophrasti. in amaranthus hybridus stomatal conductance an ...198628312092
aphid specialization on different summer hosts is associated with strong genetic differentiation and unequal symbiont communities despite a common mating habitat.specialization on different host plants can promote evolutionary diversification of herbivorous insects. work on pea aphids (acyrthosiphon pisum) has contributed significantly to the understanding of this process, demonstrating that populations associated with different host plants exhibit performance trade-offs across hosts, show adaptive host choice and genetic differentiation and possess different communities of bacterial endosymbionts. populations specialized on different secondary host plan ...201728055138
spermicidal and contraceptive potential of desgalactotigonin: a prospective alternative of nonoxynol-9.crude decoction of chenopodium album seed showed spermicidal effect at mic 2 mg/ml in earlier studies. systematic isolation, characterization and evaluation revealed that the major metabolite desgalactotigonin (dgt) is the most effective principle in both in vitro and in vivo studies. the in vitro studies comprises (a) rat and human sperm motility and immobilizing activity by sander-cramer assay; (b) sperm membrane integrity was observed by hos test and electron microscopy; (c) microbial potenti ...201425243914
boa detoxification of four summer weeds during germination and seedling growth.a recent greenhouse study revealed a significant reduction of germination and growth of redroot pigweed (amaranthus retroflexus) and common purslane (portulaca oleracea) by rye mulch, whereas velvetleaf (abutilon theophrasti) and common lambsquarters (chenopodium album) were not suppressed. since boa detoxification by metabolic alteration may influence the relation between the benzoxazinoid content of the soil mulch and weed suppression, we tested the dynamics in boa detoxification in different ...201222614450
synthesis and herbicidal activity of isoindoline-1,3-dione substituted benzoxazinone derivatives containing a carboxylic ester group.a carboxylic ester group was introduced to three series of isoindolinedione substituted benzoxazinone derivatives. some of these analogues exhibited good herbicidal activities, and the injury symptoms against weeds included leaf cupping, crinkling, bronzing, and necrosis, typical of protox inhibitor herbicides. structurally, they were classified as chemical group a (4-carboxylic ester group-6-isoindolinyl-benzoxazinones), b (4-carboxylic ester group-7-isoindolinyl-benzoxazinones), and c (4-carbo ...200919772294
the photoconvertible water-soluble chlorophyll-binding protein of chenopodium album is a member of duf538, a superfamily that distributes in embryophyta.various plants possess hydrophilic chlorophyll (chl) proteins known as water-soluble chl-binding proteins (wscps). wscps exist in two forms: class i and class ii, of which class i alone exhibits unique photoconvertibility. although numerous genes encoding class ii wscps have been identified and the molecular properties of their recombinant proteins have been well characterized, no class i wscp gene has been identified to date. in this study, we cloned the cdna and a gene encoding the class i wsc ...201323820553
the natural profilin from russian thistle (salsola kali) contains a low ige-binding ability isoform--molecular and immunological characterization.chenopodiaceae pollens such as those from salsola kali and chenopodium album are important causes of allergy in mediterranean areas because of the progress of desertification in european countries. among the various allergenic protein families, profilins constitute a group of pan-allergens that are involved in polysensitization and pollen-food allergy syndrome. two-dimensional electrophoresis analysis of s. kali profilin highlighted a polymorphic pattern, with several isoforms that have differen ...201223043287
a demonstration of photosynthetic state transitions in nature : shading by photosynthetic tissue causes conversion to state 1.photosynthetic state transitions occurring in nature are demonstrated. chenopodium album leaves converted to state 1 and ailanthus altissima leaves converted to an intermediate position between state 2 and state 1 at a time of day when these leaves were shaded by the canopy on a sunny day, while both plants' leaves were in state 2 at a time of day when they were not shaded. filtering of white light by flasks of green algae also converted the light from causing state 2 in chlorella vulgaris to ca ...198824429771
[analysis on allergens in patients with allergic rhinitis in urumqi xinjiang].understand the main types and characteristics of inhaled allergens in allergic rhinitis patients in urumqi, xinjiang, and provide theoretical basis for diagnosis, treatment, prevention of local allergic rhinitis and epidemiological investigation.201526685394
the optical and magnetic properties of copper in chenopodium album plastocyanin. 20144291366
syntheses and herbicidal activity of new triazolopyrimidine-2-sulfonamides as acetohydroxyacid synthase inhibitor.the triazolopyrimidine-2-sulfonanilide, discovered from preparing bioisosteres of the sulfonylurea herbicides, is an important class of acetohydroxyacid synthase (ahas, ec 4.1.3.18) inhibitors. at least over ten triazolopyrimidine sulfonanilides have been commercialized as herbicides for the control of broadleaf weeds and grass with cereal crop selectivity. herein, a series of triazolopyrimidine-2-sulfonanilides were designed and synthesized with the aim of discovery of new herbicides with highe ...201020598554
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