Correspondence between DOM molecules and microbial community in a subtropical coastal estuary on a spatiotemporal scale
Correspondence between DOM molecules and microbial community in a subtropical coastal estuary on a spatiotemporal scale
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亚热带沿岸河口DOM分子与微生物群落的时空对应关系
DOI：
10.1016/j.envint.2021.106558
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发表时间：
2021-04-23
影响因子：
11.8
通讯作者：
Zheng, Qiang
中科院分区：
文献类型：
--
作者：
Chen, Qi;Chen, Feng;Zheng, Qiang
溶解有机物(DOM)在数量和质量上随着时间和空间的变化而变化，特别是在高度动态的沿海河口。近海浮游细菌的数量和组成通常表现出季节和空间上的变化，并通过有机分子的同化、转化和释放来影响DOM池。DOM的变化也会影响细菌群落的组成。然而，关于DOM分子与细菌组成之间的对应关系，尤其是通过系统的现场调查，人们知之甚少。本文研究了厦门亚热带沿岸河口近一年半来微生物群落和DOM组成的时空特征。细菌和DOM的共生分析表明，微生物可能将DOM从相对较高的(400Da)转变为较低的(
Dissolved organic matter (DOM) changes in quantity and quality over time and space, especially in highly dynamic coastal estuaries. Bacterioplankton usually display seasonal and spatial variations in abundance and composition in the coastal regions, and influence the DOM pool via assimilation, transformation and release of organic molecules. The change in DOM can also affect the composition of bacterial community. However, little is known on the correspondence between DOM molecules and bacterial composition, particularly through a systematic field survey. In this study, the spatiotemporal signatures of microbial communities and DOM composition in the subtropical coastal estuary of Xiamen are investigated over one and half years. The co-occurrence analysis between bacteria and DOM suggested microorganisms likely transformed the DOM from a relatively high ( 400 Da) to a low (