MACRO REVIEW
Online ISSN : 1884-2496
Print ISSN : 0915-0560
ISSN-L : 0915-0560
A NOVEL CELLULOLYTIC, ANAEROBIC, AND THERMOPHILIC BACTERIUM, MOORELLA SP. STRAIN F21
S. KARITAM. GOTO
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2003 年 16 巻 1 号 p. 276-280

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A cellulolytic and thermophilic anaerobe was isolated from soil. This bacterium made a halo on a roll-tube culture containing Avicel, a cellulose powder, under anaerobic culture conditions. Analysis of the PCR-based 16S rRNA gene sequence showed that the bacterium was closely related to Moorella thermoacetica. Scanning electron microscopy showed the bacterium is a rod and has no protuberant structure on the surface of cells growing on cellulose, suggesting that this strain is a non-cellulosomal cellulolytic bacterium. Thermophilic carboxymethyl cellulase and xylanase activities were detected in the culture broth of the bacterium. A major fermentation product from ball-milled cellulose was acetate. This strain has a potential to convert cellulosic biomass to acetate, directly.

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