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Tight association between microbial eukaryote and giant virus communities in the Arctic Ocean

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Title
Tight association between microbial eukaryote and giant virus communities in the Arctic Ocean
Other Titles
북극해에서 진핵생물과 바이러스 사이의 상호작용
Authors
Xia, Jun
Kameyama, Sohiko
Prodinger, Florian
Yoshida, Takashi
Cho, Kyoung-Ho
Jung, Jinyoung
Kang, Sung-Ho
Yang, Eun-Jin
Ogata, Hiroyuki
Endo, Hisashi
Subject
Marine & Freshwater BiologyOceanography
Keywords
SEADIVERSITYTEMPERATUREREGRESSIONGREENLANDBLOOMSALGAEWATER
Issue Date
2022-06
Citation
Xia, Jun, et al. 2022. "Tight association between microbial eukaryote and giant virus communities in the Arctic Ocean". LIMNOLOGY AND OCEANOGRAPHY, 67(6): 1343-1356.
Abstract
Viruses are important regulatory factors of the marine microbial community including microeukaryotes. However, little is known about their role in the northern Chukchi Sea in the Arctic basin, which has oligotrophic conditions in summer. To clarify the link between microbial eukaryotic communities and viruses as well as environmental conditions, we investigated the community structures of microeukaryotes (from 3 to144 μm and from 0.23 μm size bio-particles collected from seawater) and Imitervirales (from 0.23 μm size bio-particles collected from seawater), a dominant group of viruses infecting marine microeukaryotes. To the best of our knowledge, no study has investigated both Imitervirales and eukaryotic communities in the Arctic Ocean. Surface water samples were collected at 21 ocean stations located in the northeastern Chukchi Sea and an adjacent area outside the Beaufort Gyre (Adjacent Sea), and at two melt ponds on sea ice in the summer of 2018. At the ocean stations, nutrient concentrations were low in most of the locations, except the shelf in the adjacent sea. The community variations were significantly correlated between eukaryotes and Imitervirales, even within the northeastern Chukchi Sea characterized by relatively homogeneous environmental conditions. The association of the eukaryotic community with the viral community was stronger than that with geographical and physicochemical environmental factors. These results suggest that Imitervirales actively infect their hosts even in the cold and oligotrophic seawater in the Arctic Ocean.
URI
https://repository.kopri.re.kr/handle/201206/14069
DOI
http://dx.doi.org/10.1002/lno.12086
Type
Article
Station
Araon
Indexed
SCIE
Appears in Collections  
2021-2021, Korea-Arctic Warming and Response of Ecosystem (21-21) / Yang, Eun Jin (PM21040)
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