Symbiosis in Thermophilic Cellulose Fermentation

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AN elective culture of anaerobic thermophilic cellulose bacteria was examined by plating with potato infusion agar, to which 0·04 per cent sodium thioglycollate was added. The plates were incubated at 55° C. in carbon dioxide under reduced pressure. It was found that the culture is composed of three different bacteria, only one of which is capable of fermenting cellulose. The cells of the latter are thin rods with spherical terminal spores. On cellulose–dextrin agar, prepared from water-insoluble or water-soluble cellulose dextrin according to Fuller and Norman1, this organism (provisionally named type c) forms small distinct, disk-shaped colonies, surrounded by circular, well-developed decomposition zones (visible also when water-soluble dextrin is used).

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  1. 1

    Fuller, W. H., and Norman, A. G., Proc. Soil. Soc. Amer., 7, 243 (1942).

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ENEBO, L. Symbiosis in Thermophilic Cellulose Fermentation. Nature 163, 805 (1949) doi:10.1038/163805a0

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