节点文献
西风和季风影响区冰川雪中细菌数量和群落组成与气候环境关系
Bacterial abundance and community composition of glacier snow in Western and Monsoon areas and their relations to climate environment
【Abstract】 The environmental changes of the Qinghai-Tibet Plateau possess sensitive response to global changes. However, there is still a lack intensive study about the relationship between microorganisms and environment changes. In the present study, researches have been conducted in the Muztagh Ata Glacier, Muji Glacier and Yala Glacier to investigate snow bacteria and their relationships with local climatic environmental conditions. The results demonstrated that bacterial community of the Muztagh Ata Glacier and Muji Glacier in westerly area were dominated by Bacteroidetes and Betaproteobacteria; Cyanobacteria and Betaproteobacteria were the dominant groups in the Yala Glacier, which is affected by the Indian monsoon. It is also found that bacteria of the three glaciers have shared high 16 S rRNA, similar to that from ocean, lakes, soil, plant, desert and other cold environment. These results also indicated that glaciers in westerly and Indian monsoon areas have different bacterial clades. Furthermore, it was found that bacterial diversity was affected by the climatic zone. Shannon′s diversity index was higher in Muji Glacier and Muztagh Ata Glacier than that in Yala glacier. Besides, Yala Glacier bacterial community varied significantly with season, while that in Muztagh Ata Glacier was not so significant.
【Key words】 Qinghai-Tibet Plateau; glacier; bacteria; community; diversity; climatic environment;
- 【文献出处】 冰川冻土 ,Journal of Glaciology and Geocryology , 编辑部邮箱 ,2019年01期
- 【下载频次】88