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Abundance, Diversity and Functional Potentials of Planktonic Bacteria and Microeukaryotes in the Coral-Reef System of Xisha Islands, China

文献类型：期刊论文

作者Zhang Xiaoli4; Wang Lei4; Peng Saijun3,4; Wuzhong Qiyue2,4; Zhang Lei1; Dong Zhijun4; Sun Tingting3,4; Liu Ping4; Zhang Qianqian4; Zhao Jiamnin4
刊名JOURNAL OF OCEAN UNIVERSITY OF CHINA
出版日期2022-06-01
卷号21期号:3页码:748-762
ISSN号1672-5182
关键词community composition function adaptability planktonic bacteria and microeukaryotes coral reef systems
DOI10.1007/s11802-022-5107-y
通讯作者Dong Zhijun(zjdong@yic.ac.cn) ; Zhao Jiamnin(jmzhao@yic.ac.cn)
英文摘要Corals influence microorganisms within the surrounding seawater, yet the diversities and functions of seawater bacteria and microeukaryotes in coral-reef systems have not been well addressed. We collected 40 seawater samples in outer coral reef flats and semi-closed inner lagoons from the surface, middle and bottom layers in the pristine coral-reef system of Xisha Islands, South China Sea. We detected the abundance, composition and distribution of bacteria and microeukaryotes using flow cytometry, qPCR and high throughput sequencing techniques, and profiled the potential ecological roles based on the information of 16S and 18S rDNA sequencing. In terms of flow cytometry, Prochlorococcus dominated the autotrophs with cell abundance ranging from 5.8 x 10(2) to 5.44 x 10(3) cells mL(-1) seawater. Based on qPCR, the 16S rDNA copies were much higher in coral reef flats than in lagoons (P=0.003). The bacterial communities held significantly lower diversity in bottom waters compared with surface and middle waters (P < 0.05), which were dominated by SAR11, Flavobacteriales, and Synechococcus. Alveolata represented most of the microeukaryotic communities with Dinophyceae and Syndiniales well represented in all samples. Neither bacterial nor microeukaryotic community exhibited distinct layer or niche pattern, however, Haptophyta and Picozoa decreased with depth and SAR 86, MAST-3 and Picozoa were enriched in lagoons (P <0.05). To adapt the nutrient-poor and organic matter-rich environment, bacterial nitrogen fixation and assimilatory/dissimilatory nitrate reduction were active in the system, and mixotrophy was the most important trophic strategy among microeukaryotes. The study highlighted the ecological adaptability of seawater microbes to the unique coral-reef environments.
WOS关键词HETEROTROPHIC BACTERIA ; ORGANIC-MATTER ; MICROBIAL COMMUNITIES ; GENETIC DIVERSITY ; PROCHLOROCOCCUS ; SEAWATER ; VARIABILITY ; GROWTH ; SEA ; RNA
WOS研究方向Oceanography
语种英语
WOS记录号WOS:000795139600022
资助机构National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS
源URL[http://ir.yic.ac.cn/handle/133337/31098]  
专题海岸带生物学与生物资源利用重点实验室
烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
海岸带生物资源高效利用研究与发展中心
通讯作者Dong Zhijun; Zhao Jiamnin
作者单位1.Yantai Univ, Coll Life Sci, Yantai 264005, Peoples R China
2.Hainan Univ, Coll Marine Sci, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714		 Zhang Xiaoli,Wang Lei,Peng Saijun,et al. Abundance, Diversity and Functional Potentials of Planktonic Bacteria and Microeukaryotes in the Coral-Reef System of Xisha Islands, China[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2022,21(3):748-762.
APA Zhang Xiaoli.,Wang Lei.,Peng Saijun.,Wuzhong Qiyue.,Zhang Lei.,...&Zhao Jiamnin.(2022).Abundance, Diversity and Functional Potentials of Planktonic Bacteria and Microeukaryotes in the Coral-Reef System of Xisha Islands, China.JOURNAL OF OCEAN UNIVERSITY OF CHINA,21(3),748-762.
MLA Zhang Xiaoli,et al."Abundance, Diversity and Functional Potentials of Planktonic Bacteria and Microeukaryotes in the Coral-Reef System of Xisha Islands, China".JOURNAL OF OCEAN UNIVERSITY OF CHINA 21.3(2022):748-762.

入库方式： OAI收割

来源：烟台海岸带研究所

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