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Title: Eukaryotic virus composition can predict the efficiency of carbon export in the global ocean
Authors: Kaneko, Hiroto
Blanc-Mathieu, Romain
Endo, Hisashi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-0016-1624 (unconfirmed)
Chaffron, Samuel
Delmont, Tom O.
Gaia, Morgan
Henry, Nicolas
Hernández-Velázquez, Rodrigo
Nguyen, Canh Hao
Mamitsuka, Hiroshi
Forterre, Patrick
Jaillon, Olivier
de Vargas, Colomban
Sullivan, Matthew B.
Suttle, Curtis A.
Guidi, Lionel
Ogata, Hiroyuki
Author's alias: 金子, 博人
遠藤, 寿
馬見塚, 拓
緒方, 博之
Issue Date: 22-Jan-2021
Publisher: Elsevier BV
Journal title: iScience
Volume: 24
Issue: 1
Thesis number: 102002
Abstract: The biological carbon pump, in which carbon fixed by photosynthesis is exported to the deep ocean through sinking, is a major process in Earth's carbon cycle. The proportion of primary production that is exported is termed the carbon export efficiency (CEE). Based on in-lab or regional scale observations, viruses were previously suggested to affect the CEE (i.e., viral “shunt” and “shuttle”). In this study, we tested associations between viral community composition and CEE measured at a global scale. A regression model based on relative abundance of viral marker genes explained 67% of the variation in CEE. Viruses with high importance in the model were predicted to infect ecologically important hosts. These results are consistent with the view that the viral shunt and shuttle functions at a large scale and further imply that viruses likely act in this process in a way dependent on their hosts and ecosystem dynamics.
Description: 海洋ウイルスの種組成と炭素の鉛直輸送の相関を確認 --ウイルスによる地球環境の制御を示唆. 京都大学プレスリリース. 2021-01-15.
Rights: © 2020 The Author(s). This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
URI: http://hdl.handle.net/2433/261021
DOI(Published Version): 10.1016/j.isci.2020.102002
PubMed ID: 33490910
Related Link: https://www.kyoto-u.ac.jp/ja/research-news/2021-01-15
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