Marine Giant Viruses reveal their interplay with Eukaryotic Planktonic Communities in in Krossfjorden of Svalbard, Arctic.

Title
Marine Giant Viruses reveal their interplay with Eukaryotic Planktonic Communities in in Krossfjorden of Svalbard, Arctic.
Author(s)
Jung, Seung Won; Ha, Sun Yong; Kim, Kang Eun; Ha, Yugyeong; Lee, Taek Kyun
KIOST Author(s)
Jung, Seung Won(정승원)Kim, Kang Eun(김강은)Lee, Taek Kyun(이택견)
Alternative Author(s)
정승원; 김강은; 하유경; 이택견
Publication Year
2022-06-02
Abstract
Giant viruses or Nucleocytoplasmic large DNA viruses are ubiquitous in the ocean and infect diverse eukaryotes. Characterizing ecological relationships between giant viruses and eukaryotes is critical to understanding the ecosystem. However, little is known about their diversity and relationships with eukaryotic hosts in the marine environments. To understand the interplay relationships between giant viruses and eukaryotic communities in the extreme conditions, we investigated the Giant viruses as well as planktonic eukaryotic communities using metagenomics at April and June 2018 in Krossfjorden ecosystem of Svalbard, Arctic Sea. In eukaryote communities, Gyrodinium sp. (Dinophyceae) and Aureococcus anophagefferens (Ochrophyta) were pre-dominant taxa. Our analyses reveal the community structures of Giant virus families correlate with specific eukaryotic lineages, including many photosynthetic groups. In particular, a higher proportion of Phycodnaviridae and Mimiviridae in Giant viruses appeared species in Chlorophyta and Dinophyceae communities. Giant virus communities are generally distinct between surface and bottom zones, but at some locations they exhibit a high similarity between the two depths. This vertical similarity correlates to surface eukaryotic biomass but not to physical mixing processes, which suggests a potential role of vertical transport in structuring bottom Giant virus communities.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/42804
Bibliographic Citation
2022년도 한국해양과학기술협의회 공동학술대회 (한국해양학회), pp.168, 2022
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
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