| 夏季美济礁潟湖养殖区海水细菌多样性及其与环境因子的相关性 |
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| 引用本文： | 赵旺,黄星美,邓正华,温为庚,陈明强,王雨,沈铭辉,夏光远,张钰伟,于刚.夏季美济礁潟湖养殖区海水细菌多样性及其与环境因子的相关性[J].中国水产科学,2022,29(5):720-731. |
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| 作者姓名： | 赵旺 黄星美 邓正华 温为庚 陈明强 王雨 沈铭辉 夏光远 张钰伟 于刚 |
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| 作者单位： | 中国水产科学研究院南海水产研究所, 农业农村部南海渔业资源开发利用重点实验室, 广东 广州 510300 ；中国水产科学研究院南海水产研究所热带水产研究开发中心, 海南 三亚 572018 ；三亚热带水产研究院, 海南 三亚 572018;海南省海洋与渔业科学院 海南 海口 571199 |
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| 基金项目： | 国家重点研发计划项目(2019YFD0900905)； 中国水产科学研究院中央级公益性科研院所基本科研业务费专项资金项目(2021XT02，2020TD55)； 财政部和农业农村部: 国家现代农业产业技术体系； 三亚市农业科技创新项目(2019NK13)； 中国水产科学研究院南海水产研究所中央级公益性科研院所基本科研业务费专项(2020CY01)； 农业农村部财政专项(NHYYSWZZZYKZX2020) |
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| 摘 要： | 美济礁地貌独特、生物资源丰富, 其海域微生物与渔业资源正被开发利用。为了解夏季美济礁潟湖海水养殖区细菌多样性及其与环境因子的相关性, 试验通过高通量测序技术分析了该海区海水细菌的群落结构组成, 探索了主要环境影响因子, 并采用 PICRUSt 对菌群功能进行了预测分析。美济礁潟湖海水细菌群落组成丰富, 分属于 29 个门、57 个纲、152 个目、256 个科、439 个属, 优势菌门为变形菌门(Proteobacteria)、蓝细菌门(Cyanobacteria)、 拟杆菌门(Bacteroidetes)、放线菌门(Actinobacteria)。各个站点的 3 个水层之间的 alpha 多样性指数指数均存在差异, 但均未达到显著水平。通过冗余分析发现, 主要环境影响因子为盐度、COD/NO3-N、活性硅酸盐、COD。通过 PICRUSt 功能预测, 微生物功能以新陈代谢(氨基酸代谢、碳水化合物代谢、能量产生与转换)、遗传信息处理(蛋白质翻译与修饰、DNA 复制重组和修复)及信息处理(信号转导机制、辅酶运输、无机离子运输)为主。该研究分析夏季美济礁潟湖养殖区海水细菌群落结构及其与环境因子的关系, 为认识南海微生物多样性与合理开发利用、海域渔业的开发、生态系统的保护修复提供基础数据。
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| 关 键 词： | 美济礁 微生物多样性 功能预测 环境因子 |
Analysis of bacterial diversity and correlation with environmental factors in the aquaculture area of Mischief Reef Lagoon in summer |
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| ZHAO Wang,HUANG Xingmei,DENG Zhenghu,WEN Weigeng,CHEN Mingqiang,WANG Yu,SHEN Minghui,XIA Guangyuan,ZHANG Yuwei,YU Gang.Analysis of bacterial diversity and correlation with environmental factors in the aquaculture area of Mischief Reef Lagoon in summer[J].Journal of Fishery Sciences of China,2022,29(5):720-731. |
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| Authors: | ZHAO Wang HUANG Xingmei DENG Zhenghu WEN Weigeng CHEN Mingqiang WANG Yu SHEN Minghui XIA Guangyuan ZHANG Yuwei YU Gang |
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| Abstract: | Mischief Reef has unique landforms and rich biological resources, and its marine microorganisms and fishery resources are being developed and utilized. To understand the bacterial diversity in the aquaculture area of Mischief Lagoon in summer, as well as its correlation with environmental factors, the community structure of seawater bacteria were analyzed through high-throughput sequencing technology, the main environmental impact factors were explored, and its functions were predicted by PICRUSt. The results showed that the bacteria of Mischief Reef lagoon had rich community composition. A total of 29 phyla, 57 classes, 152 orders, 256 families, and 439 genera were detected. The dominant bacteria include Proteobacteria, Cyanobacteria, Bacteroidetes, and Actinobacteria. There were differences in the alpha diversity index between the three water layers of each site, but none of them reach a significant level. Using redundancy analysis, it was found that the main environmental impact factors are salinity, COD, COD/NO3-N, and active silicate. The main functions, determined by PICRUSt functional prediction, included metabolism (amino acid metabolism, carbohydrate metabolism, energy production and conversion), genetic information processing (protein translation and modification, DNA replication, recombination and repair), and information processing (signal transduction mechanism, coenzyme transport, inorganic ion transport). This study analyzes the marine community structure of the Mischief Reef Lagoon aquaculture area in summer and its relationship with factors, providing a scientific basis for understanding the microbial diversity and rational development and utilization of the South China Sea, marine fisheries development and protection, and ecosystem protection. |
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