氧气和甲基紫精对嗜热栖热菌的影响。
Effects of oxygen and methyl viologen on Thermus aquaticus.
作者信息
MacMichael G J
机构信息
Techne Incorporated, Princeton, New Jersey 08540.
出版信息
J Bacteriol. 1988 Oct;170(10):4995-8. doi: 10.1128/jb.170.10.4995-4998.1988.
Abstract
Under increased oxygen tensions, Thermus aquaticus exhibited a lag period in growth of 80 min, during which the specific activities of catalase, peroxidase, and superoxide dismutase increased. Methyl viologen increased the lag period, decreased the maximum population density, increased cell lysis, and induced catalase and superoxide dismutase. Methyl viologen, in conjunction with chloramphenicol, decreased cell viability.
摘要
在氧气张力增加的情况下，嗜热水栖菌在生长过程中出现了80分钟的滞后期，在此期间过氧化氢酶、过氧化物酶和超氧化物歧化酶的比活性增加。甲基紫精延长了滞后期，降低了最大种群密度，增加了细胞裂解，并诱导了过氧化氢酶和超氧化物歧化酶。甲基紫精与氯霉素共同作用降低了细胞活力。
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