Diversity and Ecological Roles of Deep-Sea Viruses  

作　　者：Ying Han Chen Gao Yantao Liang Andrew McMinn Min Wang 

机构地区：[1]College of Marine Life Sciences,Institute of Evolution and Marine Biodiversity,MoE Laboratory of Evolution and Marine Biodiversity,Frontiers Science Center for Deep Ocean Multispheres and Earth System,Key Lab of Polar Oceanography and Global Ocean Change,Center for Ocean Carbon Neutrality,Ocean University of China,Qingdao,China [2]HaiDe College,Ocean University of China,Qingdao 266003,China [3]UMT-OUC Joint Center for Marine Studies,Qingdao 266003,China [4]Institute for Marine and Antarctic Studies,University of Tasmania,Hobart,Tasmania 7001,Australia [5]The Affiliated Hospital of Qingdao University,Qingdao 266000,China

出　　处：《Ocean-Land-Atmosphere Research》2024年第1期102-116,共15页海洋-陆地-大气研究(英文)

基　　金：supported by the Natural Science Foundation of China(nos.42188102,42120104006,41976117,42176111,and 42306111);the Laoshan Laboratory(nos.LSKJ-202203201 and LSKJ202203206);the Fundamental Research Funds for the Central Universities(202172002,201812002,and 202072001 to A.M.).

摘　　要：The deep sea is one of the least-explored ecosystems on Earth.Deep-sea virus communities are crucial components of this ecosystem and play crucial roles in food webs and biogeochemical cycles.Viruses that infect bacteria and archaea in the deep sea regulate microbial abundance and community structure,thereby influencing nutrient cycling throughout the deep sea and extending to the global ocean.By manipulating microbial communities through cell lysis,viruses promote the release of organic carbon and enhance the host’s ability to adapt to extreme environments through the expression of auxiliary metabolic genes during host infection.This adaptation enables virus to thrive in the deep sea via lysogenic life strategies.However,our knowledge of deep-sea viruses remains limited.This review explores the importance of viruses in deep-sea ecosystems,focusing on their community structure,diversity,interactions with host cells,ecological functions,and impacts on biogeochemical cycles.It also highlights current challenges in deep-sea virology and provides prospects for future research into deep-sea viruses.

关 键 词：environments DEEP ECOLOGICAL 

分 类 号：P73[天文地球—海洋科学]