关键词: 极地微生物;嗜冷菌;适冷菌;低温适应性;分子机制

Abstract:

Polar microorganisms possess specially genetic, physiological and biochemical properties for the uniquely geographic and climatic features in Antarctic and Arctic. The cold temperature of polar environment has a wide ranging influence on all of the microbial ecosystems of this region. Adaptation mechanisms of polar microorganisms for this environmental factor are studied in detail in recent years. This paper briefly describes the advances in molecular mechanism of cold adaptation of polar microorganism in aspects including low temparature enzymes, cell membrane, cytoplast and so on.