摘要
醛酮还原酶是一类依赖NAD(P) H的氧化还原酶,在生物体内参与了糖代谢、酮代谢和物质运输等多种生理过程。为了解黄鳝醛酮还原酶在细胞逆境胁迫中的保护作用,采用液体培养和斑点展示法,比较含黄鳝醛酮还原酶Eakr的重组菌株和阴性对照菌株在Na Cl、Cu2+和H2O2等非生物胁迫下的存活率和生长活力。结果表明,含重组醛酮还原酶Eakr的大肠杆菌在高渗透压、重金属和氧化胁迫下的生存率显著高于阴性对照,其生存活力也大大增强。提示黄鳝醛酮还原酶Eakr可能参与了细胞活性氧代谢和物质运输等多种生理过程。
引文
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