Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Glaciology and Geocryology》 2018-02
Add to Favorite Get Latest Update

Spatial and temporal distribution of virioplankton in arctic-alpine lakes

SONG Xuanying;LIU Yongqin;Key Laboratory of Alpine Ecology and Biodiversity,Institute of Tibetan Plateau Research,Chinese Academy of Sciences;Chinese Academy of Sciences (CAS) Center for Excellence in Tibetan Plateau Earth Sciences;University of Chinese Academy of Sciences;  
Virioplankton is the most abundant component of planktonic microorganisms in lake,ranging typically from 105 to 108 m L-1,which plays an important role in aquatic ecosystem. Viruses modulate the abundance,productivity,composition and diversity of microbial communities through infection and lysis. The lytic processes of the host microbial cells infected by viruses can affect the biogeochemical cycle by releasing large amount of the cells into the lake water,altering the carbon cycle and nutrient transformation. The structures of lake ecosystem in arctic-alpine regions are simple. They are mainly dominated by microorganisms,so viruses may play an important role in microbial lives. However,there is scarce about current knowledge on viruses. In this paper,the recent advances in viral ecology of arctic and alpine lakes are reviewed,including the temporal and spatial distributions of virus abundance,the effects of biological and abiotic factors on viral abundance,the interactions between virus and hosts and the significant role of virus on carbon cycle and microbial loop in lake ecosystems. The virus is widely distributed with high diversity. Lysogeny is a survival strategy to escape unfavorable environments. Released organic carbon by viral lysis can affect microbial activity and loop. Based on the former studies,it is put forwards that howto research the virioplankton in the lakes of Tibetan Plateau.
【Fund】: 国家自然科学基金项目(41425004;41771086)资助
【CateGory Index】: Q938.8
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved