| Taxonomic Diversity of Pico-/Nanoeukaryotes Is Related to Dissolved Oxygen and Productivity, but Functional Composition Is Shaped by Limiting Nutrients in Eutrophic Coastal Oceans | |
Wang, Yaping1,2; Li, Guihao1,2; Shi, Fei3; Dong, Jun3; Gentekaki, Eleni4; Zou, Songbao3; Zhu, Ping5; Zhang, Xiaoli3 ; Gong, Jun1,2,6
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| 发表期刊 | FRONTIERS IN MICROBIOLOGY
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| ISSN | 1664-302X |
| 2020-12-03 | |
| 卷号 | 11页码:15 |
| 关键词 | functional redundancy metabarcoding mixotrophy nutrient limitation productivity |
| DOI | 10.3389/fmicb.2020.601037 |
| 通讯作者 | Gong, Jun([email protected]) |
| 英文摘要 | Pico-/nanoeukaryotes (P/NEs) comprise both primary producers and bacterial predators, playing important biogeochemical and ecological roles in the marine microbial loop. Besides the difference in size, these small-sized fractions can be distinguished from microplankton by certain functional and ecological traits. Nevertheless, little information is available regarding patterns of their taxonomic and functional diversity and community composition along environmental gradients in coastal marine ecosystems. In this study, we applied high-throughput sequencing of 18S rRNA gene to assess the taxonomic species richness and community composition of P/NEs in surface waters of Bohai Sea and North Yellow Sea, northern China spanning a 600-km distance during summer and winter of 2011. The richness of operational taxonomic units (OTUs) formed a U-shaped relationship with concentration of chlorophyll a (Chl-a, a proxy of primary productivity), but a stronger, negative relationship with concentration of dissolved oxygen (DO). These two factors also significantly co-varied with the OTU-based community composition of P/NEs. The effect of geographic distance on community composition of P/NEs was negligible. Among the three functional groups defined by trophic traits, heterotrophs had the highest OTU richness, which exhibited a U-shaped relationship with both DO and Chl-a. The community of P/NEs was dominated by heterotrophs and mixotrophs in terms of read numbers, which showed a trade-off along the gradient of phosphate, but no significant changes along DO and Chl-a gradients, indicating functional redundancy. Similarly, the proportion of phototrophs was significantly and positively correlated with the concentration of silicate. Our results indicate that taxonomic and functional composition of P/NEs are decoupled on a regional scale, and limiting nutrients are important factors in modulating functional composition of these microorganisms in the studied area. These findings contribute toward gaining a better understanding of how diversity of small eukaryotes and their functions are structured in coastal oceans and the effect of environmental changes on the structuring process. |
| 资助机构 | National Natural Science Foundation of China ; Marine S and T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Research Fund Program of Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering ; Key Research Project of Frontier Science, CAS ; Fundamental Research Funds for the Central Universities, China |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | BOHAI SEA ; SPECIES RICHNESS ; ORGANIC-MATTER ; PHYTOPLANKTON ; MARINE ; BACTERIAL ; FRESH ; DISTRIBUTIONS ; PICOPLANKTON ; COMMUNITIES |
| 研究领域[WOS] | Microbiology |
| WOS记录号 | WOS:000599328200001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/27532 |
| 专题 | 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 |
| 通讯作者 | Gong, Jun |
| 作者单位 | 1.Sun Yat Sen Univ, Sch Marine Sci, Zhuhai, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China 4.Mae Fah Luang Univ, Sch Sci, Chiang Rai, Thailand 5.Ludong Univ, Sch Life Sci, Yantai, Peoples R China 6.Guangdong Prov Key Lab Marine Resources & Coastal, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yaping,Li, Guihao,Shi, Fei,et al. Taxonomic Diversity of Pico-/Nanoeukaryotes Is Related to Dissolved Oxygen and Productivity, but Functional Composition Is Shaped by Limiting Nutrients in Eutrophic Coastal Oceans[J]. FRONTIERS IN MICROBIOLOGY,2020,11:15. |
| APA | Wang, Yaping.,Li, Guihao.,Shi, Fei.,Dong, Jun.,Gentekaki, Eleni.,...&Gong, Jun.(2020).Taxonomic Diversity of Pico-/Nanoeukaryotes Is Related to Dissolved Oxygen and Productivity, but Functional Composition Is Shaped by Limiting Nutrients in Eutrophic Coastal Oceans.FRONTIERS IN MICROBIOLOGY,11,15. |
| MLA | Wang, Yaping,et al."Taxonomic Diversity of Pico-/Nanoeukaryotes Is Related to Dissolved Oxygen and Productivity, but Functional Composition Is Shaped by Limiting Nutrients in Eutrophic Coastal Oceans".FRONTIERS IN MICROBIOLOGY 11(2020):15. |
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