YIC-IR  > 海岸带生物学与生物资源利用重点实验室
Abundance, Diversity and Functional Potentials of Planktonic Bacteria and Microeukaryotes in the Coral-Reef System of Xisha Islands, China
Zhang Xiaoli1; Wang Lei1; Peng Saijun1,2; Wuzhong Qiyue1,3; Zhang Lei4; Dong Zhijun1; Sun Tingting1,2; Liu Ping1; Zhang Qianqian1; Zhao Jiamnin1
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
ISSN1672-5182
2022-06-01
Volume21Issue:3Pages:748-762
Keywordcommunity composition function adaptability planktonic bacteria and microeukaryotes coral reef systems
DOI10.1007/s11802-022-5107-y
AbstractCorals 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.
Indexed BySCI
Language英语
WOS KeywordHETEROTROPHIC BACTERIA ; ORGANIC-MATTER ; MICROBIAL COMMUNITIES ; GENETIC DIVERSITY ; PROCHLOROCOCCUS ; SEAWATER ; VARIABILITY ; GROWTH ; SEA ; RNA
WOS Research AreaOceanography
WOS IDWOS:000795139600022
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/31099
Collection海岸带生物学与生物资源利用重点实验室
海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
海岸带生物学与生物资源利用重点实验室_海岸带生物资源高效利用研究与发展中心
Corresponding AuthorDong Zhijun; Zhao Jiamnin
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Hainan Univ, Coll Marine Sci, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China
4.Yantai Univ, Coll Life Sci, Yantai 264005, Peoples R China
Recommended Citation
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.
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