Isolation and Characterization of an Anaerobic, Cellulolytic Bacterium, Clostridium papyrosolvens sp. nov.

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Abstract
C. papyrosolvens, a new species of cellulolytic, spore-forming, anaerobic bacteria, is described. The colonies produced by these bacteria in cellulose agar roll-tubes were spherical, translucent, unpigmented and of granular appearance. Single cells of the bacterium were straight rods, 0.5-0.8 .mu.m by 2-5 .mu.m, peritrichous and motile. Spherical terminal spores 1-1.2 .mu.m in diameter were formed. Fermentation products from cellulose included hydrogen, carbon dioxide, ethanol, acetate and lactate. The DNA base composition of the type strain of C. papyrosolvens, NCIB 11394, is 30 mol% guanine plus cytosine. The specific epithet papyrosolvens reflects the ability of the organism to ferment filter paper.
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