Coupling virio-and bacterioplankton populations with environmental variable changes in the Bohai Sea  

作　　者：Caixia Wang Lin Wu Yibo Wang James S.Paterson James G.Mitchell Xiaoke Hu 

机构地区：[1]Key Laboratory of Coastal Biology and Bioresource Utilization,Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences,Yantai 264003,China [2]Laboratory for Marine Biology and Biotechnology,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Ocean School,Yantai University,Yantai 264003,China [5]College of Science and Engineering,Flinders University,Adelaide,SA 5001,Australia

出　　处：《Acta Oceanologica Sinica》2020年第6期72-83,共12页海洋学报（英文版）

基　　金：The National Basic Research Program(973 Program)of China under contract No.2015CB453300;the Strategic Priority Research Programme of Chinese Academic of Sciences under contract No.XDA11020403;the Key Research Project of Frontier Science of Chinese Academy of Sciences under contract No.QYZDB-SSW-DQC041;the Technology Service Network Plan of Chinese Academy of Sciences under contract No.STS,ZSYS-006;the External Cooperation Program of Chinese Academy of Sciences(supported by the Bureau of International Cooperation,the Chinese Academy of Sciences)under contract No.133337KYSB20180015。

摘　　要：Uncovering the role of environmental factors and finding critical factors which harbor significant fractions in governing microbial communities remain key questions in coastal marine systems.To detect the interactions between environmental factors and distributions of virio-and bacterioplankton in trophic coastal areas,we used flow cytometry to investigate the abundance of virio-and bacterioplankton covering 31 stations in the Bohai Sea of China.Our results suggested that the average abundance of total virus(TV)in winter(~2.29×108 particles/mL)was slightly lower than in summer(~3.83×108 particles/mL).The mean total bacterial abundance(TB)was much lower in winter(~2.54×107 particles/mL)than in summer(~5.43×107 particles/mL).Correlation analysis via redundancy analysis(RDA)and network analysis among virioplankton,bacterioplankton and environmental factors revealed that the abundances of viral and bacterial subpopulations depend on environmental factors.In winter,only temperature significantly influenced the abundances of virio-and bacterioplankton.In summer,in addition to temperature,both salinity and nutrient(SiO2)had a remarkable impact on the distribution of virioand bacterioplankton.Our results showed a clear seasonal and trophic pattern throughout the whole water system,which revealed that temperature and eutrophication may play crucial roles in microbial distribution pattern.

关 键 词：VIRIOPLANKTON BACTERIOPLANKTON flow cytometry network Bohai Sea 

分 类 号：Q938[生物学—微生物学]