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Dynamics of Planktonic Microbial Community Associated with Saccharina japonica Seedling

文献类型： 外文期刊

作者： Wang, Shanshan 1 ; Yan, Yongwei 2 ; Qian, Hao 4 ; Li, Jie 2 ; Liu, Tao 5 ; Mo, Zhaolan 2 ;

作者机构： 1.Harbin Univ Sci & Technol, Rongcheng Campus, Weihai 264300, Peoples R China

2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab Maricultural Organism Dis Control, Qingdao 266071, Peoples R China

3.Pilot Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266071, Peoples R China

4.Weihai Changqing Ocean Sci & Technol Co Ltd, Weihai 264300, Peoples R China

5.Xiamen Univ, Coll Ocean & Earth Sci, State Key Lab Marine Environm Sci, Xiamen 361102, Peoples R China

6.Ocean Univ China, Sanya Oceanol Inst, Key Lab Trop Aquat Germplasm Hainan Prov, Sanya 572000, Peoples R China

关键词： co-occurrence pattern; kelp cultivation; environmental correlation; planktonic microbial community; succession

期刊名称：JOURNAL OF MARINE SCIENCE AND ENGINEERING （ 影响因子：2.744； 五年影响因子：2.727 ）

ISSN：

年卷期： 2022 年 10 卷 6 期

页码：

收录情况： SCI

摘要： Macroalgae interact with planktonic microbes in seawater. It remains unclear how planktonic microbes interact with the environment and each other during the cultivation processes of commercially important algal species. Such an interaction is important for developing environment-friendly mariculture methods. In this study, the dynamics of the planktonic microbial community associated with Saccharina japonica were profiled during the seedling production stage, with its environmental correlation and co-occurrence pattern determined simultaneously. Microbial richness increased and positively correlated with light intensity and contents of NO3- and PO43-. A clear temporal succession of the community was observed, which coincided with changes in light intensity, dissolved oxygen, pH, and NO3- content. alpha-Proteobacteria, Bacteroidetes, gamma-Proteobacteria, and the genera prevalent in these taxa dominated the planktonic microbial community, and their relative abundance temporally changed. A profile of keystone taxa that is different from prevalent genera was identified based on betweenness centrality scores. A modularized co-occurrence pattern was determined, in addition to intensified species-to-species interactions at the core of the co-occurrence network. These findings expanded our cognization of the planktonic microbial community in response to S. japonica cultivation.

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