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影响因子：8.7

DOI码：10.34133/research.0213

发表刊物：Research

关键字：diel cycle, marine viruses, bacterial community, virus-host interaction

摘要：Marine organisms perform a sea of diel rhythmicity. Planktonic diel dynamics have been shown to be driven by light, energy resources, circadian rhythms, and the coordinated coupling of photoautotrophs and heterotrophic bacterioplankton. Here, we explore the diel fluctuation of viral production and decay and their impact on the total and active bacterial community in the coastal and open seawaters of the South China Sea. The results showed that the night-production diel pattern of lytic viral production was concurrent with the lower viral decay at night, contributing to the accumulation of the viral population size during the night for surface waters. The diel variations in bacterial activity, community composition, and diversity were found highly affected by viral dynamics. This was revealed by the finding that bacterial community diversity was positively correlated to lytic viral production in the euphotic zone of the open ocean but was negatively related to lysogenic viral production in the coastal ocean. Such distinct but contrasting correlations suggest that viral life strategies can not only contribute to diversifying bacterial community but also potentially piggyback their host to dominate bacterial community, suggesting the tightly synchronized depth-dependent and habitat-specific diel patterns of virus–host interactions. It further implies that viruses serve as an ecologically important driver of bacterial diel dynamics across the ocean, highlighting the viral roles in bacterial ecological and biogeochemical processes in the ocean.

第一作者：Xiaowei Chen,Chen Hu

通讯作者：Nianzhi Jiao,Rui Zhang

合写作者：Wei Wei,Yunlan Yang,Markus G. Weinbauer,Hongbo Li,Shiying Ren,Ruijie Ma,Yibin Huang,Tingwei Luo

论文类型：Article

文献类型：J

是否译文：否

发表时间：2023-08-22

收录刊物：SCI