High occurrence of viruses in the mucus layer of scleractinian corals

Environmental Microbiology Reports
Hanh Nguyen-KimYvan Bettarel

Abstract

Viruses attract increasing interest from environmental microbiologists seeking to understand their function and role in coral health. However, little is known about their main ecological traits within the coral holobiont. In this study, a quantitative and qualitative characterization of viral and bacterial communities was conducted on the mucus of seven different coral species of the Van Phong Bay (Vietnam). On average, the concentrations of viruses and bacteria were, respectively, 17- and twofold higher in the mucus than in the surrounding water. The examination of bacterial community composition also showed remarkable differences between mucus and water samples. The percentage of active respiring cells was nearly threefold higher in mucus (m = 24.8%) than in water (m = 8.6%). Interestingly, a positive and highly significant correlation was observed between the proportion of active cells and viral abundance in the mucus, suggesting that the metabolism of the bacterial associates is probably a strong determinant of the distribution of viruses within the coral holobiont. Overall, coral mucus, given its unique physicochemical characteristics and sticking properties, can be regarded as a highly selective biotope for abundant, dive...Continue Reading

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Citations

Oct 21, 2015·Proceedings of the National Academy of Sciences of the United States of America·Jeremy J BarrForest Rohwer
Aug 30, 2014·Environmental Microbiology·Bettarel YvanPham The Thu
Aug 28, 2015·Environmental Science and Pollution Research International·Denis FaureUNKNOWN Microbial Ecology EC2CO consortium
Feb 18, 2015·Frontiers in Microbiology·Miguel Carda-DiéguezCarmen Amaro
Jan 17, 2017·Nature Reviews. Microbiology·Rebecca Vega ThurberAdrienne M S Correa
Sep 1, 2017·Immunological Reviews·Jeremy J Barr
Jun 21, 2015·Applied and Environmental Microbiology·Hanh Nguyen-KimJustine Brune
Dec 27, 2018·Viruses·Jonas D Van BelleghemPaul L Bollyky
Jan 18, 2018·The ISME Journal·Yvan BettarelDesnues Christelle
Aug 19, 2017·BMC Microbiology·Jan D BrüwerChristian R Voolstra
Sep 19, 2017·Frontiers in Microbiology·Jose Montalvo-ProañoMadeleine J H van Oppen
Nov 4, 2020·Microorganisms·Aurélie BoilardNicolas Derome
Jun 23, 2021·MSystems·Michael SweetRaquel Peixoto
Nov 25, 2021·PloS One·Bárbara Rodrigues Cintra ArmelliniRita de Cássia Café Ferreira

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