Publications

physiologically stressed cells of fluorescent pseudomonas eki as better option for bioformulation development for management of charcoal rot caused by macrophomina phaseolina in field conditions.	bioformulation that supports the inoculant under storage condition and on application to field is of prime importance for agroindustry. pseudomonas strain eki having biocontrol activity against macrophomina phaseolina was used in the study. eki cells were pretreated by carbon starvation, osmotic stress (nacl), and freeze drying conditions, and talc-based bioformulation was developed. combined pretreatment with carbon starvation and osmotic stress was given to pseudomonas cells. bioformulation of ...	2011	21479797
scorpion toxins modify phytopathogenic fungus physiology. a possible source of new fungicides.	seven toxins (f1-f7) were purified from tityus discrepans scorpion venom on a c18 hplc column. the compounds were fungitoxic on macrophomina phaseolina . the molecular masses of f1-f7 were (da) 1061.1, 7328.8, 7288.3, 7268.5, 7104.6, 6924.6, and 6823.3, respectively. it is not known if f1 is a small peptide or some other kind of organic molecule. compounds f2-f7 were peptides. the most potent was f7, with a minimal inhibition concentration of 0.4 μg/μl and a concentration for 50% inhibition of 0 ...	2011	21510675
biotransformation of dehydroepiandrosterone with macrophomina phaseolina and ß-glucuronidase inhibitory activity of transformed products.	the biotransformation of dehydroepiandrosterone (1) with macrophomina phaseolina was investigated. a total of eight metabolites were obtained which were characterized as androstane-3,17-dione (2), androst-4-ene-3,17-dione (3), androst-4-ene-17ß-ol-3-one (4), androst-4,6-diene-17ß-ol-3-one (5), androst-5-ene-3ß,17ß-diol (6), androst-4-ene-3ß-ol-6,17-dione (7), androst-4-ene-3ß,7ß,17ß-triol (8), and androst-5-ene-3ß,7a,17ß-triol (9). all the transformed products were screened for enzyme inhibition ...	2011	21774747
biotransformation of (20s)-20-hydroxymethylpregna-1,4-dien-3-one by four filamentous fungi.	microbial transformation of (20s)-20-hydroxymethylpregna-1,4-dien-3-one (1) by four filamentous fungi, cunninghamella elegans, macrophomina phaseolina, rhizopus stolonifer, and gibberella fujikuroi, afforded nine new, and two known metabolites 2-12. the structures of these metabolites were characterized through detailed spectroscopic analysis. these metabolites were obtained as a result of biohydroxylation of 1 at c-6ß, -7ß, -11a, -14a, -15ß, -16ß, and -17a positions, except metabolite 2 which c ...	2011	21762714
dual activity of pyocyanin from pseudomonas aeruginosa--antibiotic against phytopathogen and signal molecule for biofilm development by rhizobia.	the purified pyocyanin from pseudomonas aeruginosa to3 was investigated for its antagonistic activity against macrophomina phaseolina and as a signaling molecule for development of biofilm by rhizobial strain ca2. the antagonistic activity of purified pyocyanin, as determined by a dry mass method, showed inhibition of m. phaseolina. biofilm formation by strain ca2 was performed by crystal violet assay. there was an increase in biofilm development by ca2 with an increase in pyocyanin concentratio ...	2011	21851321
xyloglucan endotransglycosylase/hydrolase genes from a susceptible and resistant jute species show opposite expression pattern following macrophomina phaseolina infection.	two of the most widely and intensively cultivated jute species, corchorus capsularis and corchorus olitorius, suffer severely from a stem rot disease caused by the fungus macrophomina phaseolina. wild jute species, c. trilocularis, shows resistance to this pathogenic fungus. in this study, the technique of differential display was applied to identify genes which are differentially expressed, under both infected and un-infected conditions, between c. trilocularis and c. olitorius var o-72. two xy ...	2012	23336031
emerging phytopathogen macrophomina phaseolina: biology, economic importance and current diagnostic trends.	macrophomina phaseolina (tassi) goid. is an important phytopathogenic fungus, infecting a large number of plant species and surviving for up to 15 years in the soil as a saprophyte. although considerable research related to the biology and ecology of macrophomina has been conducted, it continues to cause huge economic losses in many crops. research is needed to improve the identification and characterization of genetic variability within their epidemiological and pathological niches. better unde ...	2012	22257260
in vitro and in vivo biocontrol of soil-borne phytopathogenic fungi by certain bioagents and their possible mode of action.	the study aimed to investigate new wide-spectrum biological control agents against soil-borne fungal plant pathogens. screening of 336 fungal strains and 256 bacterial strains was carried out in vitro to select the most promising isolates for controlling destructive pathogens of greenhouse-vegetables. in dual cultures, bacillus subtilis jf419701 and trichoderma harzianum jf419706 (teleomorph: hypocrea lixii) inhibited the growth of alternaria alternata, fusarium oxysporum, exserohilum rostratum, ...	2012	23269217
synthesis, antifungal activity and structure-activity relationships of vanillin oxime-n-o-alkanoates.	vanillin oxime-n-o-alkanoates were synthesized following reaction of vanillin with hydroxylamine hydrochloride, followed by reaction of the resultant oxime with acyl chlorides. the structures of the compounds were confirmed by ir, 1h, 13c nmr and mass spectral data. the test compounds were evaluated for their in vitro antifungal activity against three phytopathogenic fungi macrophomina phaseolina, rhizoctonia solani and sclerotium rolfsii by the poisoned food technique. the moderate antifungal a ...	2012	23413571