| Wang Caixia,Wu Lin,Wang Yibo,Paterson James S.,Mitchell James G.,Hu Xiaoke. 2020. Coupling virio- and bacterioplankton populations with environmental variable changes in the Bohai Sea. Acta Oceanologica Sinica, 39(6):72－83 |
| Coupling virio- and bacterioplankton populations with environmental variable changes in the Bohai Sea |
| 渤海海域浮游病毒和浮游细菌的丰度变化与环境因子之间的耦联关系 |
| Received:July 02, 2019 |
| DOI：10.1007/s13131-020-1591-3 |
| Key words:virioplankton bacterioplankton flow cytometry network Bohai Sea |
| 中文关键词: 浮游病毒 浮游细菌 流式细胞仪 网络分析 渤海 |
| 基金项目: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. |
| Author Name | Affiliation | E-mail | | Wang Caixia | Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia | | | Wu Lin | Ocean School, Yantai University, Yantai 264003, China | | | Wang Yibo | Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
University of Chinese Academy of Sciences, Beijing 100049, China | | | Paterson James S. | College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia | | | Mitchell James G. | College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia | | | Hu Xiaoke | Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | xkhu@yic.ac.cn |
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| Abstract: |
| 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 virio- and 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. |
| 中文摘要: |
| 揭示哪些环境因子在控制微生物群落结构中占有重要地位，仍然是沿海海洋系统研究的关键问题。为了研究近海地区浮游病毒和浮游细菌的分布与环境因子之间的关系，本研究利用流式细胞仪进行分析渤海地区31个站位的浮游病毒和浮游细菌的丰度分布情况。结果显示，在冬季浮游病毒的平均丰度（~2.29×108 particles/mL）略低于夏季（~3.83×108 particles/mL）。而在冬季浮游细菌的平均丰度（~2.54×107 particles/mL）比夏季低很多（~5.43×107 particles/mL）。通过RDA分析和Network关联分析浮游病毒丰度、浮游细菌丰度与环境因子之间的关系，发现在冬季只有温度对浮游病毒和浮游细菌丰度影响最大。而在夏季除了温度之外，盐度和硅酸盐的浓度都对浮游病毒和浮游细菌的分布有很大的影响。这一结果表明浮游病毒和浮游细菌的分布具有明显的季节性和营养依赖性，揭示了变暖和富营养化可能在微生物分布模式中起着至关重要的作用。 |
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