RRNPP-type quorum sensing affects solvent formation and sporulation in Clostridium acetobutylicum
نویسندگان
چکیده
منابع مشابه
Sporulation of Clostridium acetobutylicum P262 in a Defined Medium.
A defined minimal sporulation medium for Clostridium acetobutylicum P262, which produces high levels of solvents, is described. The overall sporulation sequence was similar to that of other endospore-forming bacteria. However, we observed a presporulation stage, during which swollen phase-bright cells which contained large amounts of granulose formed. During sporulation, the initiation of spore...
متن کاملClostridium acetobutylicum Protoplast Formation and Regeneration.
Techniques and media for the production and regeneration of stable Clostridium acetobutylicum protoplasts are described.
متن کاملIntracellular butyryl phosphate and acetyl phosphate concentrations in Clostridium acetobutylicum and their implications for solvent formation.
It has been suggested (L. H. Harris, R. P. Desai, N. E. Welker, and E. T. Papoutsakis, Biotechnol. Bioeng. 67:1-11, 2000) that butyryl phosphate (BuP) is a regulator of solventogenesis in Clostridium acetobutylicum. Here, we determined BuP and acetyl phosphate (AcP) levels in fermentations of C. acetobutylicum wild type (WT), degenerate strain M5, a butyrate kinase (buk) mutant, and a phosphotr...
متن کاملpH-induced gene regulation of solvent production by Clostridium acetobutylicum in continuous culture: Parameter estimation and sporulation modelling
The acetone-butanol (AB) fermentation process in the anaerobic endospore-forming Gram-positive bacterium Clostridium acetobutylicum is useful as a producer of biofuels, particularly butanol. Recent work has concentrated on trying to improve the efficiency of the fermentation method, either through changes in the environmental conditions or by modifying the genome to selectively favour the produ...
متن کاملRole of Chemotaxis in Solvent Production by Clostridium acetobutylicum.
The motility of Clostridium acetobutylicum has been investigated during a typical batch fermentation process for solvent production. The motility is characterized by "runs" during the early phase of sugar utilization and acid production, but this changes to "tumbles" during the onset of solventogenesis. Sugars and undissociated acetic and butyric acids have been shown to be attractants for the ...
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ژورنال
عنوان ژورنال: Microbiology
سال: 2020
ISSN: 1350-0872,1465-2080
DOI: 10.1099/mic.0.000916