phoH-carrying virus communities responded to multiple factors and their correlation network with prokaryotes in sediments along Bohai Sea, Yellow Sea, and East China Sea in China
phoH-carrying virus communities responded to multiple factors and their correlation network with prokaryotes in sediments along Bohai Sea, Yellow Sea, and East China Sea in China
复制标题
中国渤海、黄海和东海沉积物中携带phoH的病毒群落对多种因素的响应及其与原核生物的相关网络
DOI：
10.1016/j.scitotenv.2021.152477
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发表时间：
2022
影响因子：
9.8
通讯作者：
Yongyu Zhang
中科院分区：
文献类型：
--
作者：
Long Wang;Jiulong Zhao;Zengmeng Wang;Ning Li;Jinming Song;Rui Zhang;Nianzhi Jiao;Yongyu Zhang
携带磷基因的病毒是促进宿主磷代谢、影响海洋磷循环的重要功能群。然而，目前对海洋沉积物中携带phoH病毒的群落结构和多样性，以及它们与原核生物和环境的相关网络知之甚少。通过对沿着渤海、黄海和东海的大尺度调查，首次发现了多种携带H2 O2的未知底栖生物病毒，主要分属于3个类群。有趣的是，与海水中的病毒相比，这些病毒呈现出非常独特的群落结构。相关网络分析表明，这些病毒可能主要感染沉积物中的Gamm-/Delta-变形菌、Thaumarchaeota和Cyanobacteria等原核生物。不同海域的病毒-原核生物相关网络模块有明显的差异。这些模块的高度嵌套特征暗示了它们在长期的军备竞赛中与原核生物的协同进化。其在沉积物中的分布受地理分隔、总有机碳和总磷等关键环境变量的影响，并对陆源输入和近岸养殖活动有响应。这项研究的结果提供了新的见解底栖病毒社区可能参与海洋中的磷循环。
Viruses carryingphoHgenes are an important functional group that may boost phosphate metabolism of their prokaryote hosts and affect phosphorus cycle in the ocean. However, at present, very little is known about thephoH-carrying viruses' community structure and diversity in marine sediments, as well as their correlation network with prokaryotes and environment. Here, via a large spatial scale investigation along the Bohai Sea, Yellow Sea, and East China Sea, for the first time, diverse unknown benthicphoH-carrying viruses were uncovered, which were mainly affiliated to three clusters. Interestingly, these viruses presented a very distinct community structure compared to those in seawaters. Correlation network analysis implied that these viruses might mainly infect the prokaryotes of Gamm-/Delta-proteobacteria, Thaumarchaeota, and Cyanobacteria in sediments. Distinct virus-prokaryote correlation network modules were shown in different sea areas. These modules' highly nested feature implied their coevolution with prokaryotes during long-term arms race. Their distribution in sediments was influenced by multiple factors including geographic separation and the key environmental variables of total organic carbon and total phosphorus, and responded to terrestrial inputs and coastal aquaculture activities. The results of this study provide novel insights into the benthic virus communities potentially participating in phosphorus cycling in the ocean.