Studies on Proteinases from Gliocladium roseum
نویسندگان
چکیده
منابع مشابه
Nematicidal epipolysulfanyldioxopiperazines from Gliocladium roseum.
Five new verticillin-type epipolysulfanyldioxopiperazines, gliocladine A (1), B (2), C (3), D (4), and E (5), were isolated from wheat solid-substrate fermentation of Gliocladium roseum 1A, along with four known compounds, verticillin A (6), 11'-deoxyverticillin A (7), Sch52900 (8), and Sch52901 (9). Their structures were elucidated by extensive 1D and 2D NMR studies, MS, and chemical transform...
متن کاملRole of zearalenone lactonase in protection of Gliocladium roseum from fungitoxic effects of the mycotoxin zearalenone.
Zearalenone is a mycotoxin with estrogenic effects on mammals that is produced by several species of Fusarium. We found that zearalenone and its derivatives inhibit the growth of filamentous fungi on solid media at concentrations of < or =10 microg/ml. The fungitoxic effect declined in the order zearalenone > alpha-zearalenol > beta-zearalenol. The mycoparasitic fungus Gliocladium roseum produc...
متن کاملBiotransformation of 4beta-hydroxyeudesmane-1,6-dione by Gliocladium roseum and Exserohilum halodes.
Biotransformation of sesquiterpene 4beta-hydroxyeudesmane-1,6-dione by the filamentous fungi Gliocladium roseum and Exserohilum halodes was achieved. With Exserohilum halodes, only one metabolite was obtained, as a result of the regio- and stereoselective reduction of the keto group at C-1, which is difficult to achieve by chemical means. Five metabolites were produced with Gliocladium roseum, ...
متن کاملChemical-microbiological synthesis of cryptomeridiol derivatives by Gliocladium roseum: semisynthesis of 11-hydroxyeudesmanolides.
Biotransformations of 4alpha- and 4beta-hydroxyeudesmane derivatives by the filamentous fungus Gliocladium roseum were achieved. Hydroxylation at C-11 was the main action of this microorganism, producing new cryptomeridiol (12 and 14) and 4-epi-cryptomeridiol derivatives (6 and 7), respectively, in good yields. The biotransformation activity of G. roseum toward 4beta-hydroxyeudesmane was focuse...
متن کاملRoselipins, inhibitors of diacylglycerol acyltransferase, produced by Gliocladium roseum KF-1040.
Gliocladium roseum KF-1040, a marine isolate, was found to produce a series of new inhibitors of diacylglycerol acyltransferase (DGAT). Four active compounds, designated roselipins 1A, 1B, 2A and 2B, were isolated from the fermentation broth of the producing strain by solvent extraction, ODS column chromatography and preparative HPLC. The highest production of roselipins was observed when cultu...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1966
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.30.1183