Structure and temporal dynamics of the bacterial communities associated to microhabitats of the coral Oculina patagonica

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Title: Structure and temporal dynamics of the bacterial communities associated to microhabitats of the coral Oculina patagonica
Authors: Rubio-Portillo, Esther | Santos Sánchez, Fernando | Martinez-Garcia, Manuel | Ríos Murillo, Asunción de los | Ascaso Ciria, Carmen | Souza-Egipsy, Virginia | Ramos-Esplá, Alfonso A. | Anton, Josefa
Research Group/s: Recursos Hídricos y Desarrollo Sostenible | Biología Marina | Ecología Microbiana Molecular
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada | Universidad de Alicante. Departamento de Fisiología, Genética y Microbiología
Keywords: Bacterial communities | Microhabitats | Corals | Oculina patagonica
Knowledge Area: Zoología | Microbiología
Issue Date: Dec-2016
Publisher: John Wiley & Sons
Citation: Environmental Microbiology. 2016, 18(12): 4564-4578. doi:10.1111/1462-2920.13548
Abstract: Corals are known to contain a diverse microbiota that plays a paramount role in the physiology and health of holobiont. However, few studies have addressed the variability of bacterial communities within the coral host. In this study, bacterial community composition from the mucus, tissue and skeleton of the scleractinian coral Oculina patagonica were investigated seasonally at two locations in the Western Mediterranean Sea, to further understand how environmental conditions and the coral microbiome structure are related. We used denaturing gradient gel electrophoresis in combination with next-generation sequencing and electron microscopy to characterize the bacterial community. The bacterial communities were significantly different among coral compartments, and coral tissue displayed the greatest changes related to environmental conditions and coral health status. Species belonging to the Rhodobacteraceae and Vibrionaceae families form part of O. patagonica tissues core microbiome and may play significant roles in the nitrogen cycle. Furthermore, sequences related to the coral pathogens, Vibrio mediterranei and Vibrio coralliilyticus, were detected not only in bleached corals but also in healthy ones, even during cold months. This fact opens a new view onto unveiling the role of pathogens in the development of coral diseases in the future.
Sponsor: This work was supported by the projects CGL2012-39627-C03-01 and CGL2015-66686-C3-3-P (to JA) of the Spanish Ministry of Economy and Competitiveness, that include FEDER funds from the European Union.
ISSN: 1462-2912 (Print) | 1462-2920 (Online)
DOI: 10.1111/1462-2920.13548
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2016 Society for Applied Microbiology and John Wiley & Sons Ltd
Peer Review: si
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Appears in Collections:INV - BM - Artículos Científicos / Scientific Papers
INV - Recursos Hídricos y Desarrollo Sostenible - Artículos de Revistas
INV - EMM - Artículos de Revistas

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