Cellobiose chemotaxis by the cellulolytic bacterium Cellulomonas gelida
نویسندگان
چکیده
منابع مشابه
Regulation of Cellulolytic Activity in Cellulomonas Sp.iibc
METHODS The effect of glucose, cellobiose and xylose on the regulation of cellulolytic activity in Cellulomonas sp. ZZbc was investigated. The addition of 1% glucose, cellobiose or xylose to actively growing bagasse pith cultures repressed the cellulose system. No enzyme inactivation by sugar concentrations up to 1.5% was detected. Both cellobiose and xylose, at concentrations ranging from 0.00...
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Project Goals: The use of cellulolytic bacteria for generating cellulosic ethanol has recently been the focus of extensive research. This research has primarily focused on using engineered strains of cellulolytic bacteria, but there is growing interest in understanding the fundamental processes of cellulose degradation for identifying novel enzymes or for finding organisms capable of more effic...
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Mixed cultures of Cellulomonas gelida plus Azospirillum lipoferum or Azospirillum brasilense and C. gelida plus Bacillus macerans were shown to degrade cellulose and straw and to utilize the energy-yielding products to fix atmospheric nitrogen. This cooperative process was followed over 30 days in sand-based cultures in which the breakdown of 20% of the cellulose and 28 to 30% of the straw resu...
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Cellobiose dehydrogenase (CDH EC.1.1.5.1) is an extracellular enzyme that mainly produced by wood-degrading fungi. It oxidizes cellobiose to cellobionolactone using a wide spectrum of electron acceptors. The key roles of CDH in growth, metabolism, and some other important cellular processes such as cellulose degradation in fungi have been noted. Since the demands for finding new sources of CDH ...
متن کاملChemotaxis in a gliding bacterium.
Myxococcus xanthus cells exhibit directed motility up phosphatidylethanolamine (PE) gradients, and we suggest that PE behaves as a chemoattractant. Computer-assisted stop-motion digital microscopy was used to record cell movements in slide culture. PE decreased cellular reversal frequency with molecular specificity that was correlated with the fatty acid composition. Synthetic dilauroyl (di C12...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1992
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.174.24.7996-8002.1992