Regulation of hydrogenase activity in vegetative cells of Anabaena variabilis
نویسندگان
چکیده
منابع مشابه
Ammonium (methylammonium) transport by heterocysts and vegetative cells of Anabaena variabilis.
Transport of the ammonium analogue [(14)C]methylammonium was similar in non-growing, fully differentiated heterocysts as compared to vegetative, multiplying cells of the filamentous cyanobacterium Anabaena variabilis. NH(4)(+) inhibited uptake into the cells and released accumulated methylammonium from the cells. These observations suggest that the main function of ammonium transport in heteroc...
متن کاملcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اولTranscriptional and mutational analysis of the uptake hydrogenase of the filamentous cyanobacterium Anabaena variabilis ATCC 29413.
A 10-kb DNA region of the cyanobacterium Anabaena variabilis ATCC 29413 containing the structural genes of the uptake hydrogenase (hupSL) was cloned and sequenced. In contrast to the hupL gene of Anabaena sp. strain PCC 7120, which is interrupted by a 10.5-kb DNA fragment in vegetative cells, there is no programmed rearrangement within the hupL gene during the heterocyst differentiation of A. v...
متن کاملAntifungal Activity of Anabaena Variabilis against Plant Pathogens
Cyanobacterial secondary metabolites have a diverse antagonistic activity that lead to disintegration of microbial growth. The study was conducted to evaluate the antifungal property possessed by cyanobacteriaAnabaena variabilis in retarding the growth of plant pathogenic fungal species. It was observed that the extracts prepared from Anabaena variabilis were capable of diminishing the growth a...
متن کاملEffect on heterocyst differentiation of nitrogen fixation in vegetative cells of the cyanobacterium Anabaena variabilis ATCC 29413.
Heterocysts are terminally differentiated cells of some filamentous cyanobacteria that fix nitrogen for the entire filament under oxic growth conditions. Anabaena variabilis ATCC 29413 is unusual in that it has two Mo-dependent nitrogenases; one, called Nif1, functions in heterocysts, while the second, Nif2, functions under anoxic conditions in vegetative cells. Both nitrogenases depended on ex...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1983
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.155.1.129-137.1983