Sporulation and primary sigma factor homologous genes 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 کاملTranscriptional program of early sporulation and stationary-phase events in Clostridium acetobutylicum.
DNA microarray analysis of Clostridium acetobutylicum was used to examine the genomic-scale gene expression changes during the shift from exponential-phase growth and acidogenesis to stationary phase and solventogenesis. Self-organizing maps were used to identify novel expression patterns of functional gene classes, including aromatic and branched-chain amino acid synthesis, ribosomal proteins,...
متن کاملSpoIIE regulates sporulation but does not directly affect solventogenesis in Clostridium acetobutylicum ATCC 824.
Using gene expression reporter vectors, we examined the activity of the spoIIE promoter in wild-type and spo0A-deleted strains of Clostridium acetobutylicum ATCC 824. In wild-type cells, the spoIIE promoter is active in a transient manner during late solventogenesis, but in strain SKO1, where the sporulation initiator spo0A is disrupted, no spoIIE promoter activity is detectable at any stage of...
متن کاملGenomic-Based Identification of the Sporulation Restoring Gene in Degenerate Clostridium Acetobutylicum Strains
There is a renewed interest in the study of Clostridium acetobutylicum due to its applicability in renewable and “greener” production methods for alternative fuels and industrial solvents. Furthermore, due to significant advances in genetic technologies, C. acetobutylicum has ostensibly become a model clostridia for studying other solventogenic and pathogenic clostridia. Of considerable interes...
متن کاملAlternative sigma factors F, E, G, and K in Clostridium botulinum sporulation and stress response
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1994
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.176.21.6572-6582.1994