Publications

TitleAbstractYear
Filter
PMID
Filter
inhibition of protein synthesis in vitro by a lectin from momordica charantia and by other haemagglutinins.protein synthesis by a rabbit reticulocyte lysate is inhibited by the haemagglutinating lectins from momordica charantia and crotalaria juncea seeds and from the roe of rutilus rutilus, and by a commercial preparation of the mitogenic lectin from phytolacca americana. the haemagglutinins from the seeds of ricinus communis and of vicia cracca acquired inhibitory activity after their reduction with 2-mercaptoethanol.1979508306
toxicological studies on the ethanolic extract of crotalaria juncea seeds in rats.the effect of the ethanolic extract of crotalaria juncea linn. (leguminosae) seeds has been assessed on liver, kidney, spleen and adrenals of adult rats. results revealed that its administration at a dose of 200 mg/kg caused significant alterations. wet weight of the organs was reduced. protein and glycogen contents in all the organs were decreased significantly, whereas, the activity of acid and alkaline phosphatase was increased. histology revealed remarkable disintegration necrosis and degene ...19957623480
symbiosis-promoting and deleterious effects of nopt, a novel type 3 effector of rhizobium sp. strain ngr234.establishment of symbiosis between certain host plants and nitrogen-fixing bacteria ("rhizobia") depends on type 3 effector proteins secreted via the bacterial type 3 secretion system (t3ss). here, we report that the open reading frame y4zc of strain ngr234 encodes a novel rhizobial type 3 effector, termed nopt (for nodulation outer protein t). analysis of secreted proteins from ngr234 and t3ss mutants revealed that nopt is secreted via the t3ss. nopt possessed autoproteolytic activity when expr ...200818487326
effect of winter cover crops on nematode population levels in north florida.two experiments were conducted in north-central florida to examine the effects of various winter cover crops on plant-parasitic nematode populations through time. in the first experiment, six winter cover crops were rotated with summer corn (zea mays), arranged in a randomized complete block design. the cover crops evaluated were wheat (triticum aestivum), rye (secale cereale), oat (avena sativa), lupine (lupinus angustifolius), hairy vetch (vicia villosa), and crimson clover (trifolium incarnat ...200419262833
management of rotylenchulus reniformis in pineapple, ananas comosus, by intercycle cover crops.the effects of intercycle cover crops on rotylenchulus reniformis population densities in pineapple were evaluated in one greenhouse and two field experiments. in the greenhouse, crotalaria juncea, brassica napus, and tagetes erecta were planted for 3 months and then incorporated. these treatments were compared to weedy fallow with or without 1,3-dichloropropene (1,3-d) in three soils (makawao fallow, wahiawa fallow, and wahiawa pineapple) naturally infested with r. reniformis. all cover crop in ...200219265916
study of betasatellite molecule from leaf curl disease of sunn hemp (crotalaria juncea) in india.leaves of sunn hemp (crotalaria juncea) showing geminiviral symptoms were collected from lucknow, india during rainy season in 2008. dna template isolated from the symptomatic leaf tissues were subjected to polymerase chain reaction (pcr) using specific primers to amplify coat protein (cp) gene of dna-a as well as betasatellite dna associated with the leaf curl disease. cp gene showed 97% sequence identity with that of cotton leaf curl burewala virus (clcubwv). further, the betasatellite dna mol ...201020890652
tissue culture independent transformation of the forage crop sunnhemp (crotalaria juncea l.): an easy method towards generation of transgenics.a transformation system which is free of in vitro plant regeneration following agrobacterium infection is established for the forage legume, sunnhemp (crotalaria juncea l.) where in the entire embryo axis of the germinating seed was used as the target tissue for transformation. after standardization of transformation conditions, the cotyledonary node of the embryo axis was infected with agrobacterium host lba 4404 harboring the recombinant vector pcambia 2301. the bivalent 1d gene of the two maj ...201123573040
effects of the integration of sunn hemp and soil solarization on plant-parasitic and free-living nematodes.sunn hemp (sh), crotolaria juncea, is known to suppress rotylenchulus reniformis and weeds while enhancing free-living nematodes involved in nutrient cycling. field trials were conducted in 2009 (trial i) and 2010 (trial ii) to examine if sh cover cropping could suppress r. reniformis and weeds while enhancing free-living nematodes if integrated with soil solarization (sol). cover cropping of sh, soil solarization, and sh followed by sol (shsol) were compared to weedy fallow control (c). rotylen ...201223482700
expression of vp1 protein of serotype a and o of foot-and-mouth disease virus in transgenic sunnhemp plants and its immunogenicity for guinea pigs.recently, transgenic plants expressing immunogenic proteins of foot-and-mouth disease virus (fmdv) have been used as oral or parenteral vaccines against foot-and-mouth disease (fmd). they exhibit advantages like cost effectiveness, absence of processing, thermostability, and easy oral application. fmdv vp1 protein of single serotype has been mostly used as immunogen. here we report the development of a bivalent vaccine with tandem-linked vp1 proteins of two serotypes, a and o, present in transge ...201222720698
host suitability of potential cover crops for root-knot nematodes.several potential cover crops were evaluated for their susceptibility to meloidogyne arenaria race 1, m. incognita race 1, and m. javanica in a series of five greenhouse experiments. no galls or egg masses were observed on roots of castor (ricinus communis), cowpea (vigna unguiculata cv. iron clay), crotalaria (crotalaria spectabilis), or american jointvetch (aeschynomene americana). occasional egg masses (rating </=1.0 on 0-5 scale) were observed on marigold (tagetes minuta) in one test with m. ...199919270926
purification and characterization of pectin lyase secreted by penicillium citrinum.the importance of various parameters such as sugarcane juice concentration, ph of the medium, and effects of different solid supports for maximum secretion of pectin lyase from penicillium citrinum mtcc 8897 has been studied. the enzyme was purified to homogeneity by sephadex g-100 and deae-cellulose chromatography. the molecular mass determined by sds-page was 31 kda. the k(m) and k(cat) values were found to be 1 mg/ml and 76 sec(-1), respectively. the optimum ph of the purified pectin lyase wa ...200919747102
root-knot nematode management in dryland taro with tropical cover crops.twenty-two cover crops were evaluated for their ability to reduce damage by root-knot nematode, meloidogyne javanica, to taro, colocastia esculenta, in a tropical cropping system. cover crops were grown and incorporated into the soil before taro was planted. barley, greenpanic, glycine, marigold, sesame, sunn hemp, and sorghum x sudangrass dekalb st6e were poor or nonhosts to the nematode as measured by low population changes of nematodes in soil between cover crop planting and taro planting. al ...199719274275
influence of nonhost plants on population decline of rotylenchulus reniformis.the influence of chloris gayana, crotalaria juncea, digitaria decumbens, tagetes patula, and a chitin-based soil amendment on hawaiian populations of rotylenchulus reniformis was examined. chloris gayana was a nonhost for r. reniformis. the nematode did not penetrate the roots, and in greenhouse and field experiments, c. gayana reduced reniform nematode numbers at least as well as fallow. tagetes patula was a poor host for reniform nematode and reduced reniform nematode numbers in soil better th ...199119283098
intercropping cover crops with pineapple for the management of rotylenchulus reniformis.effect of cover crops intercropped with pineapple (ananas comosus) on rotylenchulus reniformis population densities and activity of nematode-trapping fungi (ntf) were evaluated in two cycles of cover crop and pineapple. sunn hemp (crotalaria juncea), rapeseed (brassica napus), african marigold (tagetes erecta), or weeds were intercropped with pineapples. beds planted with sunn hemp or rapeseed had lower population densities of r. reniformis than african marigold, weeds, or pineapple plots during ...200319265973
effect of rotation crops on heterodera glycines population density in a greenhouse screening study.crop rotation is a common means of reducing pathogen populations in soil. several rotation crops have been shown to reduce soybean cyst nematode (heterodera glycines) populations, but a comprehensive study of the optimal crops is needed. a greenhouse study was conducted to determine the effect of growth and decomposition of 46 crops on population density of h. glycines. crops were sown in soil infested with h. glycines. plants were maintained until 75 days after planting, when the soil was mixed ...200619259545
rhizobia utilize pathogen-like effector proteins during symbiosis.a type iii protein secretion system (t3ss) is an important host range determinant for the infection of legumes by rhizobium sp. ngr234. although a functional t3ss can have either beneficial or detrimental effects on nodule formation, only the rhizobial-specific positively acting effector proteins, nopl and nopp, have been characterized. ngr234 possesses three open reading frames potentially encoding homologues of effector proteins from pathogenic bacteria. nopj, nopm and nopt are secreted by the ...200919019163
effects of soil amendments at a heavy loading rate associated with cover crops as green manures on the leaching of nutrients and heavy metals from a calcareous soil.the potential risk of groundwater contamination by the excessive leaching of n, p and heavy metals from soils amended at heavy loading rates of biosolids, coal ash, n-viro soil (1:1 mixture of coal ash and biosolids), yard waste compost and co-compost (3:7 mixture of biosolids to yard wastes), and by soil incorporation of green manures of sunn hemp (crotalaria juncea) and sorghum sudangrass (sorghum bicolor x s. bicolor var. sudanense) was studied by collecting and analyzing leachates from pots ...200314649715
nodulation and plant-growth promotion by methylotrophic bacteria isolated from tropical legumes.the nitrogen fixing methylotrophic bacteria were isolated from the nodules of tropical legumes. two isolates cmcj317 and cmsa322 isolated from crotalaria juncea and sesbania aculeata possessing high nitrogenase activities under pure culture conditions and able to form nodules under inoculated conditions were further characterized. the biochemical characteristics revealed their close relationship with methylobacterium nodulans type strain ors2060. the pcr amplification of noda and mxaf genes show ...200917074473
feeding and oviposition preference of phyllophaga cuyabana (moser) (coleoptera: melolonthidae) on several crops.laboratory and greenhouse experiments were carried out to study food and oviposition preference by phyllophaga cuyabana (moser) on different plant species as cajanus cajan l. (pigeon pea), crotalaria juncea l. (sun hemp), crotalaria spectabilis roth (showy crotalaria), crotalaria ochroleuca g. don (slenderleaf rattlebox), glycine max [l.] merrill (soybean), gossypium hirsutum l. (cotton), helianthus annuus l. (sunflower), stizolobium aterrimum [mucuna aterrima] piper tracey (velvetbean) and zea ...200718060303
nopp, a phosphorylated effector of rhizobium sp. strain ngr234, is a major determinant of nodulation of the tropical legumes flemingia congesta and tephrosia vogelii.rhizobium sp. ngr234 nodulates many plants, some of which react to proteins secreted via a type three secretion system (t3ss) in a positive- (flemingia congesta, tephrosia vogelii) or negative- (crotalaria juncea, pachyrhizus tuberosus) manner. t3sss are devices that gram-negative bacteria use to inject effector proteins into the cytoplasm of eukaryotic cells. the only two rhizobial t3ss effector proteins characterized to date are nopl and nopp of ngr234. nopl can be phosphorylated by plant kina ...200516102002
antispermatogenic and hormonal effects of crotalaria juncea linn. seed extracts in male mice.to evaluate the antifertility activity of various extracts of crotalaria juncea seeds in male mice.200415064837
characterization of nops, nodulation outer proteins, secreted via the type iii secretion system of ngr234.the nitrogen-fixing symbiotic bacterium rhizobium species ngr234 secretes, via a type iii secretion system (ttss), proteins called nops (nodulation outer proteins). abolition of ttss-dependent protein secretion has either no effect or leads to a change in the number of nodules on selected plants. more dramatically, nops impair nodule development on crotalaria juncea roots, resulting in the formation of nonfixing pseudonodules. a double mutation of nopx and nopl, which code for two previously ide ...200312971597
[biological evaluation of some medicinal plant extracts for contraceptive efficacy in females].in a search for traditional medicinal plants having contraceptive efficacy, plants were identified and collected throughout india, generally by purchase from sellers of ayurvedic remedies. the plants were air dried, cut, and processed using different organic solvents. the contraceptive properties of the plants were studied in rats, mice, and hamsters. doses of 100-200 mg/kg of 137 plants were given orally to 5-6 animals for each plant. 27 appeared promising enough for further testing in whic ...198512340145
decomposition, nitrogen and carbon mineralization from food and cover crop residues in the central plateau of haiti.cover crops are a major focus of conservation agriculture efforts because they can provide soil cover and increase nutrient availability after their mineralization in cropping systems. to evaluate the effect of residue type and placement on rate of decomposition and carbon (c) and nitrogen (n) mineralization, residues from two food crops, maize (zea mays l.) and common bean (phaseolus vulgaris l.), and two promising cover crops, sunn hemp (crotalaria juncea l.) and sorghum sudangrass (sorghum bi ...201627429883
effect of sunn hemp (crotalaria juncea l.) cutting date and planting density on weed suppression in georgia, usa.a field study was conducted in 2008 and 2009 at the usda, ars, plant genetic resources conservation unit in griffin, ga, to investigate weed suppression by sunn hemp (crotalaria juncea l). the objectives were to (1) evaluate the effects of apical meristem removal (amr) at three dates [5, 6, and 7 wks after planting (wap) on may 14, 2008 and may 21, 2009] and (2) assess the impact of seeding rates (11, 28, and 45 kg ha(-1)) on weed biomass reduction. weed species were identified at 4, 8, and 12 w ...201526065522
purification of leghemoglobin from nodules of crotalaria infected with rhizobium.the leghemoglobin from nodules of crotalaria juncea infected with rhizobium spp. was purified to homogeneity. the protein was purified after precipitation with 40-80% (nh4)2so4, and chromatography by anionic exchange and gel filtration. the leghemoglobin has a single component and showed an apparent m(r) of ca. 17,300 and 23,700 determined by sds-page and gel filtration, respectively. the amino acid composition showed that asparagine/aspartic acid, glutamine/glutamic acid, alanine, lysine, serin ...19999933947
crotalaria juncea intoxication in horses.twenty horses died 30 d after being fed a diet containing 40% of tritured crotalaria juncea seeds. before death, they had staggering, dyspnea and fever. at necropsy the most evident lesions were areas of lung parenchyma consolidation and enlarged and congested livers. histopathological examination revealed diffuse fibrosing alveolitis with hyaline membranes, suggesting a blood-borne insult, and passive congestion in the liver with compression of the hepatocyte trabecules. to confirm the diagnosi ...19947839571
characterization of the major structural proteins of purified bovine viral diarrhea virus.bovine viral diarrhea virus (bvdv) was concentrated and purified by a combination of ultrafiltration, hydroextraction using polyethylene glycol and affinity chromatography. a lectin from crotalaria juncea that has an affinity for galactose was used in the affinity chromatography. virions of bvdv with classic envelopes were observed by electron microscopy. four major proteins with estimated molecular weights of 75,000, 66,000, 54,000, and 26,000 were identified in sodium dodecyl sulfate--polyacry ...19836312929
characterization of the receptor for platelet-derived growth factor on human fibroblasts. demonstration of an intimate relationship with a 185,000-dalton substrate for the platelet-derived growth factor-stimulated kinase.the receptor for platelet-derived growth factor (pdgf) on human foreskin fibroblasts has been characterized. the molecular weight of the pdgf-receptor complex was estimated by affinity labeling techniques to about 200,000, as determined by sodium dodecyl sulfate-gel electrophoresis performed under reducing conditions. subtraction of the mr of reduced pdgf (18,000 to 15,000) gives a mr for the receptor proper of 185,000 (+/- 10,000). the mobility in sodium dodecyl sulfate-gel electrophoresis was ...19836309764
bovine viral diarrhea virus: affinity chromatography on crotalaria juncea lectin.attempts were made to purify bovine viral diarrhea virus by chromatography on crotalaria juncea lectin coupled to sepharose 2b. a recovery of abut 65% of viral infectivity after desorption was obtained. electron microscopy revealed mostly de-enveloped particles, rather uniform in appearance but differing in size. immunodiffusion tests with immune calf sera showed precipitation lines of identity between the desorbed virus and extracts from infected cell cultures.19816262351
influence of foliar application of chemicals on the root exudations and rhizosphere microflora of sorghum vulgare and crotalaria juncea. 19734775440
a blood group a specific lectin from the seeds of crotalaria striata.a lectin, monospecific for human blood group a red blood cells was extracted from seeds of crotalaria striata and purified by molecular sieving on sephadex g-100 and ion-exchange on deae-cellulose. a molecular mass of 30 kda was determined by sds-polyacrylamide gel electrophoresis under non-reducing and reducing conditions. molecular sieving on a superose 12 column indicated a molecular mass of 110 kda, suggesting the tetrameric nature of the native protein. amino-acid composition showed the pre ...19902306467
effect of crotalaria juncea amendment on nematode communities in soil with different agricultural histories.effect of sunn hemp (crotalaria juncea) hay amendment on nematode community structure in the soil surrounding roots of yellow squash (cucurbita pepo) infected with root-knot nematodes was examined in two greenhouse experiments. soils were from field plots treated long-term (lt) with yard-waste compost or no yard-waste compost in lt experiment, and from a short-term (st) agricultural site in st experiment. soils collected were either amended or not amended with c. juncea hay. nematode communities ...200319262764
characterization of a neutral pectin lyase produced by oidiodendron echinulatum mtcc 1356 in solid state fermentation.a neutral pectin lyase produced by a new fungal strain oidiodendron echinulatum mtcc 1356 under solid state fermentation using wheat bran as agro waste has been studied. the enzyme was purified by ammonium sulphate precipitation (30-60%), deae anion exchange and sephadex g-100 column chromatographies. the sds-page and native page revealed two bands of sizes 42 and 47 kda. the enzyme was purified 37 fold with specific activity of 4.5 u/mg and 2.25% yield. the k(m) and v(max) values determined usi ...201222359214
elevated atmospheric carbon dioxide effects on soybean and sorghum gas exchange in conventional and no-tillage systems.increasing atmospheric co(2) concentration has led to concerns about potential effects on production agriculture. in the fall of 1997, a study was initiated to compare the response of two crop management systems (conventional tillage and no-tillage) to elevated co(2). the study used a split-plot design replicated three times with two management systems as main plots and two atmospheric co(2) levels (ambient and twice ambient) as split plots using open-top chambers on a decatur silt loam soil (cl ...201320176833
effect of crotalaria juncea amendment on squash infected with meloidogyne incognita.two greenhouse experiments were conducted to examine the effect of crotalaria juncea amendment on meloidogyne incognita population levels and growth of yellow squash (cucurbita pepo). in the first experiment, four soils with a long history of receiving yard waste compost (ywc+), no-yard-waste compost (ywc-), conventional tillage, or no-tillage treatments were used; in the second experiment, only one recently cultivated soil was used. half of the amount of each soil received air-dried residues of ...200419262819
strip-tilled cover cropping for managing nematodes, soil mesoarthropods, and weeds in a bitter melon agroecosystem.a field trial was conducted to examine whether strip-tilled cover cropping followed by living mulch practice could suppress root-knot nematode (meloidogyne incognita) and enhance beneficial nematodes and other soil mesofauna, while suppressing weeds throughout two vegetable cropping seasons. sunn hemp (sh), crotalaria juncea, and french marigold (mg), tagetes patula, were grown for three months, strip-tilled, and bitter melon (momordica charantia) seedlings were transplanted into the tilled stri ...201022736847
genetic diversity of crotalaria germplasm assessed through phylogenetic analysis of est-ssr markers.the genetic diversity of the genus crotalaria is unknown even though many species in this genus are economically valuable. we report the first study in which polymorphic expressed sequence tag-simple sequence repeat (est-ssr) markers derived from medicago and soybean were used to assess the genetic diversity of the crotalaria germplasm collection. this collection consisted of 26 accessions representing 4 morphologically characterized species. phylogenetic analysis partitioned accessions into 4 m ...200616936850
characteristics of cadmium accumulation and tolerance in novel cd-accumulating crops, avena strigosa and crotalaria juncea.characteristics of accumulation and tolerance of cadmium (cd) in green manure crops were investigated to identify cd-accumulating crops and to clarify the mechanisms involved in cd accumulation and tolerance. seedlings of eight crop species were treated with cd (1 mg l(-1) or 5 mg l(-1)) in the growing medium for 4 d. cd concentration in leaves of avena strigosa schreb. cv. new-oat, crotalaria juncea l. and tagetes erecta l. cv. african-tall was greater than values used to define cd-hyperaccumul ...200616873452
the effect of transitional organic production practices on soilborne pests of tomato in a simulated microplot study.the perceived risk of pest resurgence upon transition from conventional to organic-based farming systems remains a critical obstacle to expanding organic vegetable production, particularly where chemical fumigants have provided soilborne pest and disease control. microplots were used to study the effects of soil amendments and cropping sequences applied over a 2-year transitional period from conventional to organic tomato (solanum lycopersicum) cultivation on the incidence of bacterial wilt caus ...201323837543
biodegradation of 4-nitroaniline by plant-growth promoting acinetobacter sp. avlb2 and toxicological analysis of its biodegradation metabolites.4-nitroaniline (4-na) is one of the major priority pollutants generated from industrial productions and pesticide transformation; however very limited biodegradation details have been reported. this work is the first to report 4-na biodegradation kinetics and toxicity reduction using a newly isolated plant-growth promoting bacterium, acinetobacter sp. avlb2. the 4-na-dependent growth kinetics parameters: μmax, ks and ki, were determined to be 0.039 h(-1), 6.623 mg l(-1) and 25.57 mg l(-1), respe ...201626489917
microbial production of succinic acid using crude and purified glycerol from a crotalaria juncea based biorefinery.microbial conversion of crude and purified glycerol obtained in the process of biorefining crotalaria juncea is carried out to produce succinic acid using escherichia coli. batch tests are performed for nine different substrate concentrations of commercial, purified and crude glycerol, in order to observe cell growth and substrate utilization rate. inhibitory (halden-andrew, aiba-edward, tessier type and andrews) as well as non-inhibitory (monod, moser and tessier) models are fitted to the relat ...201628352528
purification and characterization of polygalacturonase from aspergillus fumigatus mtcc 2584 and elucidating its application in retting of crotalaria juncea fiber.polygalacturonases represents an important member of pectinases group of enzymes with diverse industrial applications and is widely distributed among fungi, bacteria, yeasts, plants and some plant parasitic nematodes. an endo-polygalacturonase from a new fungal source aspergillus fumigatus mtcc 2584 was produced under solid-state fermentation conditions and was purified simply by acetone precipitation and gel-filtration chromatography technique. the approximate molecular weight of the purified p ...201628330273
purification and characterization of pectin lyase secreted by aspergillus flavus mtcc 10938.an indigenously isolated fungal strain aspergillus flavus mtcc 10938 was subjected to pectin lyase (pnl) production under submerged fermentation conditions. the enzyme was purified to homogeneity from the culture filtrate of the fungus involving concentration by ultrafiltration, anion exchange chromatography on deae cellulose and gel filtration chromatography on sephadex g-100. the purified pnl gave a single protein band in sds-page analysis with a relative molecular mass corresponding to 50 kda ...201624455866
host status of crotalaria juncea, sesamum indicum, dolichos lablab, and elymus glaucus to meloidogyne javanica.reproduction of meloidogyne javanica on crotalaria juncea pi 207657 and cv. tropic sun, sesamum indicum, dolichos lablab, and elymus glaucus was assessed using a root-gall index, a reproductive index obtained by dividing the final population of juveniles (j2) in soil by the initial j2 population (pf/pi), and the number of j2 per gram of root recovered from roots by mist chamber extraction. lycopersicon esculentum (cv. uc 204 c) was included as a susceptible host. the root-gall index and soil rep ...199419279920
effect of plant extracts on the infectivity of sunnhemp (crotalaria juncea l.) mosaic virus. 196514328225
structure of sannhemp (crotalaria juncea linn.) mosaic virus with the electron microscope. 195114852976
a note on mosaic virus of sann-hemp (crotalaria juncea linn.) and its its crystallisation. 194720287518
penetration of crotalaria juncea, dolichos lablab, and sesamum indicum roots by meloidogyne javanica.penetration of crotalaria juncea (pi 207657 and cv. tropic sun) dolichos lablab cv. highworth, and sesamum indicum by juveniles (j2) of meloidogyne javanica was assessed to investigate the mechanism by which these plants may reduce nematode numbers in the field. growth chamber experiments were conducted at 25 c, with vials containing 90 g sand infested with 450 j2; tomato (uc 204 c) was included as a susceptible host. fifteen days after inoculation, roots were stained and the nematodes within st ...199419279887
chromium phytoextraction from tannery effluent-contaminated soil by crotalaria juncea infested with pseudomonas fluorescens.the aim of present study was to remediate chromium (cr)-contaminated soil by crotalaria juncea in the presence of pseudomonas fluorescens. inoculation of p. fluorescens in pot soil grown with c. juncea significantly increased (~2-fold) the water-soluble (ws) and exchangeable (ex) cr contents in contaminated soil under greenhouse condition. it also enhanced the chlorophyll content by 92 % and plant biomass by 99 % as compared to the uninoculated c. juncea plant. the analysis showed that root and ...201424659403
rhizobium freirei sp. nov., a symbiont of phaseolus vulgaris that is very effective at fixing nitrogen.common bean (phaseolus vulgaris l.) can establish symbiotic associations with several rhizobium species; however, the effectiveness of most strains at fixing nitrogen under field conditions is very low. prf 81(t) is a very effective strain, usually referred to as rhizobium tropici and used successfully in thousands of doses of commercial inoculants for the common bean crop in brazil; it has shown high rates of nitrogen fixation in all areas representative of the crop in the country. here, we pre ...201323771622
phytoprotective effect of arbuscular mycorrhizal fungi species against arsenic toxicity in tropical leguminous species.arbuscular mycorrhizal fungi (amf) improve the tolerance of hosting plants to arsenic (as) in contaminated soils. this work assessed the phytoprotective effect of glomus etunicatum, acaulospora morrowiae, gigaspora gigantea, and acaulospora sp. on four leguminous species (acacia mangium, crotalaria juncea, enterolobium contortisiliquum, and stizolobium aterrimum) in an as-contaminated soil from a gold mining area. amf root colonization, biomass production, as and p accumulation, as well as arsen ...201424933888
the validation of an analytical method for sulfentrazone residue determination in soil using liquid chromatography and a comparison of chromatographic sensitivity to millet as a bioindicator species.commonly used herbicides, such as sulfentrazone, pose the risk of soil contamination due to their persistence, bioaccumulation and toxicity. phytoremediation by green manure species has been tested using biomarkers, but analytical data are now required to confirm the extraction of sulfentrazone from soil. thus, the present work was carried out to analyze sulfentrazone residues in soil based on liquid chromatography with a comparison of these values to the sensitivity of the bioindicator penniset ...201425072201
quantification of the contribution of biological nitrogen fixation to tropical green manure crops and the residual benefit to a subsequent maize crop using 15n-isotope techniques.in this study the contribution of biological n2 fixation (bnf) to leguminous green manures was quantified in the field at different sites with different 15n methodologies. in the first experiment, conducted on a terra roxa soil in cuba, the bnf contribution to three legumes (crotalaria juncea, mucuna aterrima and canavalia ensiformis) was quantified by applying 15n-labelled ammonium sulphate to the soil. the second experiment was planted in a very low fertility sandy soil near rio de janeiro, an ...200111566383
determination of antioxidant capacity, α-amylase and lipase inhibitory activity of crotalaria juncea linn in vitro inhibitory activity of crotalaria juncea linn.the present study involves the determination of antioxidant capacity and in vitro α-amylase and lipase inhibitory activity of the crotalaria juncea linn extract. the content of polyphenols, flavonoids, and tannins in the extracts was estimated by spectrophotometry. antioxidant activity on goat liver lipid peroxidation and linoleic acid emulsion were determined and α-amylase and lipase inhibitory activity was also evaluated. all the extracts had shown antioxidant property, α-amylase, and lipase i ...201424670121
performance of amblyseius herbicolus on broad mites and on castor bean and sunnhemp pollen.amblyseius herbicolus (banks) is found associated with broad mites polyphagotarsonemus latus in crops such as chili pepper in brazil. the species has a potential for controlling p. latus, but little is known about its development and reproduction on this pest as well as on other food sources. we studied biological, reproductive and life table parameters of a. herbicolus on three different diets: broad mites, castor bean pollen (ricinus communis) and sunnhemp pollen (crotalaria juncea). the preda ...201323417701
purification and biochemical characterization of an alkaline pectin lyase from fusarium decemcellulare mtcc 2079 suitable for crotalaria juncea fiber retting.an extracellular pectin lyase secreted by fusarium decemcellulare mtcc 2079 under solid state fermentation condition has been purified to electrophoretic homogeniety by using ammonium sulfate fractionation, carboxymethyl cellulose and gel filtration (sephadex g-100) column chromatographies. the purified enzyme showed single protein band corresponding to molecular mass 45 ± 01 kda on sodium dodecyl sulfate polyacrylamide gel electrophoresis. the enzyme had maximum activity at ph 9.0 and showed ma ...201425088294
effects of green manure cover crops on spodoptera litura (lepidoptera: noctuidae) populations.spodoptera litura (f.) is an important pest of numerous agro-economic crops, including green manure cover crops. in taiwan, sesbania (sesbanin roxburghii merr.), sunn hemp (crotalaria juncea l.), and rapeseed (brassicae campestris l. variety chinensis) are the most popular green manure crops; sesbania and sunn hemp are commonly planted in warm seasons, whereas rapeseed is grown in the winter. in this study, life-table data for s. litura reared on these three green manures were collected to evalu ...201425026645
role of an ethanolic extract of crotalaria juncea l. on high-fat diet-induced hypercholesterolemia.to evaluate the antihypercholesterolemic effects of 50 mg/kg bw and 100 mg/kg bw per day of an ethanolic extract of crotalaria juncea linn (whole plant) by performing in vivo studies.201724959408
sunn hemp cover cropping and organic fertilizer effects on the nematode community under temperate growing conditions.field experiments were conducted in maryland to investigate the influence of sunn hemp cover cropping in conjunction with organic and synthetic fertilizers on the nematode community in a zucchini cropping system. two field treatments, zucchini planted into a sunn hemp living and surface mulch (sh) and zucchini planted into bare-ground (bg) were established during three field seasons from 2009 to 2011. in 2009, although sh slightly increased nematode richness compared with bg by the first harvest ...201324379485
antidyslipidemic and antioxidant activity of an unusual amino acid (2-amino-5-hydroxyhexanoic acid) isolated from the seeds of crotalaria juncea.in continuation of our drug discovery programme on indian medicinal plants, we isolated an unusual amino acid, i.e. 2-amino-5-hydroxyhexanoic acid (1) from the seeds of crotalaria juncea. the 2-amino-5-hydroxyhexanoic acid (1) showed dose dependent lipid lowering activity in the in vivo experiments and also showed good in vitro antioxidant activity. the cyclized compound, 3-amino-6-methyltetrahydro-2h-pyran-2-one (2) showed better lipid lowering and antioxidant profile than the parent compound 1 ...201324035223
reduction in metolachlor and degradate concentrations in shallow groundwater through cover crop use.pesticide use during crop production has the potential to adversely impact groundwater quality. in southern florida, climatic and hydrogeologic conditions and agronomic practices indicate that contamination risks are high. in the current study, dissipation of the widely used herbicide, metolachlor, and levels of the compound and selected degradates in shallow groundwater beneath six 0.15-ha plots in sweet corn (zea mays) production were evaluated over a two-year period. during fallow periods (ma ...200919799423
summer cover crops reduce atrazine leaching to shallow groundwater in southern florida.at florida's southeastern tip, sweet corn (zea mays) is grown commercially during winter months. most fields are treated with atrazine (6-chloro-n-ethyl-n'-[1-methylethyl]-1,3,5-triazine-2,4-diamine). hydrogeologic conditions indicate a potential for shallow groundwater contamination. this was investigated by measuring the parent compound and three degradates--dea (6-chloro-n-[1-methylethyl]-1,3,5-triazine-2,4-diamine), dia (6-chloro-n-ethyl)-1,3,5-triazine-2,4-diamine, and ha (6-hydroxy-n-[1-me ...201317636291
variability for the presence of pyrrolizidine alkaloids in crotolaria juncea l.sunn hemp (crotalaria juncea l.) is the most widely grown legume used as green manure in the tropics where it is also grown as a fiber and animal fodder crop. it has been reported that sunn hemp seeds contain several pyrrolizidine alkaloids that when ingested in sufficient amount can be toxic to animals and birds. no information is available regarding variability for the presences of the different types of pyrrolizidine alkaloids in the seeds. the objective of this research was to analyze sunn h ...200516124407
determination of terminal sugars in transferrin by radio-lectin immunoassay (rlia)-a new microanalytical procedure.a new method for the determination of terminal sugars in immunologically defined glycoproteins with microheterogeneity in the sugar residue has been developed. the method has been elaborated for transferrin and involves the following three steps: 1. binding of antitransferrin antibodies to cyanogen bromide activated sepharose. 2. adsorption to the antitransferrin gel of transferrin from serum or from standard solutions of defined composition of terminal glycoprotein sugars. 3. adsorption of a 12 ...19817303331
influence of seed and root exudations on the rhizosphere effect in sorghum vulgare and crotalaria juncea.the influence of seed and root exudations on the rhizosphere effect of sorghum vulgare and crotalaria juncea was examined. while the quantitative occurrence of certain morphological and physiological groups of bacteria on the seeds and rhizospheres of the two plant species differed, there were similarities in the occurrence of certain physiological and nutritional groups of bacteria on the seed as well as on the rhizosphere. the occurrence of some genera of fungi on the seeds and in the rhizosph ...1978744557
a phytohemagglutinin from sunn hemp seeds (crotalaria juncea). ii. purification by a high capacity biospecific affinity adsorbent and its physicochemical properties.a galactose-specific lectin from seeds of sunn hemp (crotalaria juncea) has been purified by fractional precipitation with ammonium sulfate followed by biospecific affinity chromatography and preparative isoelectric focusing. the adsorbent was prepared by coupling galactose to sepharose 6b activated with divinyl sulfone. the lectin was homogeneous as judged by ultracentrifugation and by electrophoresis in cellulose acetate strips and in polyacrylamide gradient gel. its isoelectric point is ph 8. ...1977901813
the phytohemagglutinin from sunn hemp seeds (crotalaria juncea). purification by biospecific affinity chromatography. 19734719153
properties of the inhibitors of sunnhemp (crotalaria juncea l.) mosaic virus in certain plant extracts. 19654379473
pulmonary and hepatic lesions caused by the dehydropyrrolizidine alkaloid-producing plants crotalaria juncea and crotalaria retusa in donkeys.the effects and susceptibility of donkeys to crotalaria juncea and crotalaria retusa poisoning were determined at high and low doses. seeds of c. juncea containing 0.074% of dehydropyrrolizidine alkaloids (dhpas) (isohemijunceines 0.05%, trichodesmine 0.016%, and junceine 0.008%) were administered to three donkeys at 0.3, 0.6 and 1 g/kg body weight (g/kg) daily for 365 days. no clinical signs were observed and, on liver and lung biopsies, the only lesion was a mild liver megalocytosis in the don ...201323726858
glucose, stem dry weight variation, principal component and cluster analysis for some agronomic traits among 16 regenerated crotalaria juncea accessions for potential cellulosic ethanol.the objectives of this research were to identify candidate sunn hemp accessions having high concentrations of cellulose for use as parents in breeding for cellulose and to determine variability for glucose content and some important agronomic traits among sunn hemp accessions. since sunn hemp is an under-utilized species, glucose content and agronomic trait variation is essential for the identification of superior sunn hemp accessions for use as potential ethanol for biofuel. sixteen sunn hemp a ...201323356343
dehydropyrrolizidine alkaloids, including monoesters with an unusual esterifying acid, from cultivated crotalaria juncea (sunn hemp cv.'tropic sun').cultivation of crotalaria juncea l. (sunn hemp cv. 'tropic sun') is recommended as a green manure crop in a rotation cycle to improve soil condition, help control erosion, suppress weeds, and reduce soil nematodes. because c. juncea belongs to a genus that is known for the production of toxic dehydropyrrolizidine alkaloids, extracts of the roots, stems, leaves, and seeds of 'tropic sun' were analyzed for their presence using hplc-esi/ms. qualitative analysis identified previously unknown alkaloi ...201222429238
Displaying items 1 - 72 of 72