Hu Weigang, Zhang Qi, Tian Tian, Cheng Guodong, An Lizhe, Feng Huyuan
Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
Extremophiles. 2015 Jul;19(4):693-705. doi: 10.1007/s00792-015-0749-y. Epub 2015 Apr 30.
Permafrost in China mainly located in high-altitude areas. It represents a unique and suitable ecological niche that can be colonized by abundant microbes. Permafrost microbial community varies across geographically separated locations in China, and some lineages are novel and possible endemic. Besides, Chinese permafrost is a reservoir of functional microbial groups involved in key biogeochemical cycling processes. In future, more work is necessary to determine if these phylogenetic groups detected by DNA-based methods are part of the viable microbial community, and their functional roles and how they potentially respond to climate change. This review summaries recent studies describing microbial biodiversity found in permafrost and associated environments in China, and provides a framework for better understanding the microbial ecology of permafrost.
中国的永久冻土主要分布在高海拔地区。它代表了一个独特且适宜的生态位，大量微生物可以在其中定殖。中国永久冻土微生物群落因地理位置的分隔而有所不同，一些谱系是新发现的且可能是特有的。此外，中国的永久冻土是参与关键生物地球化学循环过程的功能性微生物群的储存库。未来，有必要开展更多工作，以确定通过基于DNA的方法检测到的这些系统发育类群是否属于有活力的微生物群落，以及它们的功能作用和对气候变化的潜在响应方式。本综述总结了近期有关中国永久冻土及相关环境中微生物多样性的研究，并为更好地理解永久冻土的微生物生态学提供了一个框架。
