| calcium ion regulates the release of lipase of fusarium oxysporum. | the lipase production of a plant pathogenic fungus, fusarium oxysporum f. sp. lini suf 402, was induced by fat as the carbon source, and its release was stimulated by the infusion of intracellular free calcium ion with a calcium ionophore, a23187. n-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide (w-7, a calmodulin inhibitor) and 1-[n,o-bis(5-isoquinolinesulfonyl)-n-methyl- l-tyrosyl]-4-phenylpiperazine (kn-62, a ca2+/calmodulin dependent protein kinase ii inhibitor) reduced the extracellular r ... | 1991 | 1769973 |
| survival and inoculum potential of conidia and chlamydospores of fusarium oxysporum f.sp. lini in soil. | the kinetics of survival and inoculum potential of fusarium oxysporum f.sp. lini were studied in soil. two types of inoculum were compared: microconidia freshly harvested from a laboratory-grown culture and microchlamydospores produced in sterilized soil. introduced at the same inoculum densities into a natural soil, the two types of inoculum showed similar behavior; the inoculum densities changed little with time, at least during 100 days. however, the two types of inoculum did differ in diseas ... | 1990 | 2245379 |
| specificity of fungal lipase in hydrolytic cleavage of oil. | lipase isolated from the fungus fusarium oxysporum f. sp. lini has shown specificity to saturated acids. in vitro hydrolytic splitting of cotton seed, ground-nut and fungal (f. oxysporum) oil substrates by the enzyme preparation from this fungus, revealed preferential fatty acid specificity. the enzyme attacked the triglyceride molecule, liberating 90-97% of saturated fatty acids, irrespective of length of the carbon chain. | 1987 | 3439435 |
| production of chitinase by fusarium species. | the presence of chitinase activity without inducers in the enzymic precipitates from the culture fluid of 25-day-old autolyzed cultures of 17 fusarium species has been studied. in all cases endochitinase and beta-n-acetylglucosaminidase activities were found. the chitinase activity as a joint action of these two enzymes with production of n-acetylglucosamine was also determined. a correlation among endochitinase, beta-n-acetylglucosaminidase, and chitinase was always found. fusarium oxysporum f. ... | 1995 | 7766156 |
| synthesis and antifungal activity of novel bisdithiocarbamate derivatives of carbohydrates against fusarium oxysporum f. sp. lini. | novel carbamic esters possessing a carbohydrate moiety derived from glycerol or d-glucose with two n,n-diethyldithiocarbamoyl groups and a series of bisdithiocarbamic esters having a ketone or an alkyl ester have been synthesized. the in vitro activity of these new compounds was evaluated against fusarium oxysporum f. sp. lini. some of the compounds [bis[1,3-s-(n,n-diethyldithiocarbamoyl)]-1, 3-dideoxyglycerol) and diethyl n,n'-(1,3-dideoxyglycer-1, 3-diyl)bis(dithiocarbamate)] were more active ... | 2000 | 11087473 |
| enzymatic and microbial preparation of d-xylulose from d-xylose. | a high-d-xylulose mixture (d-xylose-d-xylulose = 33:67) was prepared from the cold ethanol extract of preisomerized d-xylose solution (d-xylose-d-xylulose = 77:23). fusarium oxysporum f. sp. lini and aspergillus niger were demonstrated to preferentially utilize d-xylose in the mixture of d-xylose and d-xylulose. chromatographically pure d-xylulose was thus obtained in 90% yield. a high-d-xylulose mixture was also incubated with rhodotorula toruloides, klebsiella pneumoniae, candida utilis, or mu ... | 1981 | 16345816 |
| effect of mixed and single crops on disease suppressiveness of soils. | abstract the effect of mixed cropping on disease suppressiveness of soils was tested for two cropping systems, brussels sprouts-barley and triticale-white clover. disease suppressiveness of field soils was evaluated in bioassays for the soilborne pathogens rhizoctonia solani, fusarium oxysporum f. sp. lini, and gaeumannomyces graminis var. tritici. for both cropping systems, mixed cropping did not enhance disease suppressiveness of the soils. in some cases, soil cropped to barley alone was signi ... | 2005 | 18943364 |