Abstract

Summary The cellulolytic activity of Cytophaga sp. strain N, grown on degraded chernozem or loamy sand soil supplied with various cellulose substrates, was studied. The cellulose substrate markedly affected the proliferation and the cellulolytic acitivity of Cytophaga. The intensity of the degradation of the cellulose substrates appeared in the following order: filter paper > cotton fibers > wheat straw. There is a considerable variation in the decomposition of cellulose substrates according to the soil type. In the degraded chernozem soil, the decomposition of cellulose substrates was 70, 54, and 30 % of the initial mass in the case of filter paper, cotton fibers, and wheat straw, respectively, after 90 days, while in the loamy sand soil the corresponding figures were 62, 46, and 24 %.

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