Microbial mat compositions and localization patterns explain the virulence of black band disease in corals

Wada, Naohisa, Iguchi, Akira, Urabe, Yuta, Yoshioka, Yuki, Abe, Natsumi, Takase, Kazuki, Hayashi, Shuji, Kawanabe, Saeko, Sato, Yui, Tang, Sen-Lin, and Mano, Nobuhiro (2023) Microbial mat compositions and localization patterns explain the virulence of black band disease in corals. npj Biofilms and Microbiomes, 9. 15.

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Abstract

Black band disease (BBD) in corals is characterized by a distinctive, band-like microbial mat, which spreads across the tissues and often kills infected colonies. The microbial mat is dominated by cyanobacteria but also commonly contains sulfide-oxidizing bacteria (SOB), sulfate-reducing bacteria (SRB), and other microbes. The migration rate in BBD varies across different environmental conditions, including temperature, light, and pH. However, whether variations in the migration rates reflect differences in the microbial consortium within the BBD mat remains unknown. Here, we show that the micro-scale surface structure, bacterial composition, and spatial distribution differed across BBD lesions with different migration rates. The migration rate was positively correlated with the relative abundance of potential SOBs belonging to Arcobacteraceae localized in the middle layer within the mat and negatively correlated with the relative abundance of other potential SOBs belonging to Rhodobacteraceae. Our study highlights the microbial composition in BBD as an important determinant of virulence.

Item ID: 78847
Item Type: Article (Research - C1)
ISSN: 2055-5008
Copyright Information: © The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Date Deposited: 05 Jun 2023 06:48
FoR Codes: 31 BIOLOGICAL SCIENCES > 3107 Microbiology > 310703 Microbial ecology @ 25%
31 BIOLOGICAL SCIENCES > 3103 Ecology > 310305 Marine and estuarine ecology (incl. marine ichthyology) @ 75%
SEO Codes: 18 ENVIRONMENTAL MANAGEMENT > 1805 Marine systems and management > 180503 Control of pests, diseases and exotic species in marine environments @ 20%
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280102 Expanding knowledge in the biological sciences @ 80%
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