Title Aspergillus nidulans의 분생포자에 존재하는 β-glucosidase에 관하여
Author 권기선 · 이재훈 · 하영칠 · 홍순우
Address 서울대학교 자연과학대학 미생물학과
Bibliography Korean Journal of Microbiology, 24(4),335-340, 1986
Key Words Aspergillus nidulans, conidia, β-glucosidase
Abstract Two kind of β-glucosidase, tightly-bound enzyme(TBE) and loosely-bound enzyme(LBE), were obtained from the conidia of Aspergillus nidulans. The existence of enzymes in conidia was conformed by the fact that these enzyme activities were proportional to the number of conidia. The levels of enzyme activities were independent of aging of the conidia. Enzymes were characterized partially. In spite of the physical and chemical treatments of conidia, there was no significant change in TBE activity. The optimum pH and temperature was 6.0 and 55℃, respectively. Thermostability of the TBE was remarkably higher than that of mycelial β-glucosidase. The electrophoretic pattern of LBE was identical to that of mycelial β-glucosidase. These results suggest that conidial β-glucosidases are involved in adaptation process of the conidia to variable environments.
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