Extracellular polygalacturonases from Penicillium frequentans: Separation and regulatory aspects
نویسندگان
چکیده
منابع مشابه
Extracellular polysaccharides of Penicillium vermiculatum.
Extracellular Polysaccharide, Isolation, Characterization Extracellular polysaccharide mixture that forms a viscous mucilate in the fermentation medium during industrial cultivation of Penicillium vermiculatum was isolated by ethanol precipitation and its structural characteristics were investigated by a combination of physicochemical methods. The mixture contained two structurally different po...
متن کاملCellular and extracellular siderophores of Aspergillus nidulans and Penicillium chrysogenum.
Aspergillus nidulans and Penicillium chrysogenum produce specific cellular siderophores in addition to the well-known siderophores of the culture medium. Since this was found previously in Neurospora crassa, it is probably generally true for filamentous ascomycetes. The cellular siderophore of A. nidulans is ferricrocin; that of P. chrysogenum is ferrichrome. A. nidulans also contains triacetyl...
متن کاملExtracellular siderophores of rapidly growing Aspergillus nidulans and Penicillium chrysogenum.
The highly active extracellular siderophores previously detected in young cultures of Aspergillus nidulans and Penicillium chrysogenum have been identified as the cyclic ester fusigen (fusarinine C), and its open-chain form, fusigen B (fusarinine B).
متن کاملTargeted mutants of Cochliobolus carbonum lacking the two major extracellular polygalacturonases.
The filamentous fungus Cochliobolus carbonum produces endo-alpha 1,4-polygalacturonase (endoPG), exo-alpha 1,4-polygalacturonase (exoPG), and pectin methylesterase when grown in culture on pectin. Residual activity in a pgn1 mutant (lacking endoPG) was due to exoPG activity, and the responsible protein has now been purified. After chemical deglycosylation, the molecular mass of the purified pro...
متن کاملPlant Polygalacturonases Involved in Cell Elongation and Separation—The Same but Different?
Plant cells are surrounded by the primary cell wall, a rigid framework that needs to be modified in order to allow cell growth. Recent data suggest that in addition to the cellulose-hemicellulose network, the pectin matrix plays a critical role in determining the elasticity of the primary cell wall. Polygalacturonases are key homogalacturonan-hydrolyzing enzymes that function in a wide range of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1992
ISSN: 0022-1287
DOI: 10.1099/00221287-138-9-1801