新規なキトサン加水分解酵素exo-chitobiohydrolaseを産生する微生物の同定

概要

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Identification of No.C6-2 strain which produces a novel chitosan-hydrolyzing enzyme, exo-chitobiohydrolase, was carried out on the basis of the results of mycological and morphological examinations. The results of mycological and morphological examinations of the strain were as follows: Colonies rapidly growing on potato-dextrose agar and malt extract agar, to 4.5~5.0cm in diameter with aerial mycelium and sporangia at 25℃ for 7 days, white, cottony ; no pigment ; odor none ; rarely septate, had stolons and rhizoids; sporangiophores 150 (maximum) × 3~5μm, from stolon and aerial mycelium, no branching and straight stipes ; sporangia 25μm (maximum) in diameter, globose or oval, many-spored, with semispherical apophysis and shallow aolumellae ; sporangiospores 2.5~3.5 × 1.5~2.0μm, semilunal or boat shaped ; forming no zygotes by the strain oneself and with Gongronella butleri IFO8080 (Mating type :+), but forming it with Gongronella butleri IFO8081 (Mating type :-). From these results, the No.C6-2 strain was identified as Gongronella butleri (Mating type :+).
実践女子大学の論文
2004-03-25