An Update of Knowledge of the Bacterial Assemblages Associated with the Mexican Caribbean Corals Acropora palmata, Orbicella faveolata, and Porites porites

In this study, the bacterial microbiota associated with apparently healthy corals of Acropora palmata, Orbicella faveolata, and Porites porites and the surrounding seawater and sediment were evaluated via the MiSeq Illumina sequencing of the V4 region of 16S rRNA at three reef sites in the Mexican C...

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Published in:Diversity (Basel) 2023-09, Vol.15 (9), p.964
Main Authors: Hernández-Zulueta, Joicye, Díaz-Pérez, Leopoldo, Echeverría-Vega, Alex, Nava-Martínez, Gabriela Georgina, García-Salgado, Miguel Ángel, Rodríguez-Zaragoza, Fabián A.
Format: Article
Language:English
Subjects:
16S rRNA
Acropora palmata
Ammonium
Bacteria
bacteriome
Chemical analysis
Chemoheterotrophy
Colonies
Coral reefs
Corals
Fermentation
metabarcoding
microbial ecology
Microbiota
Nitrate reduction
Orbicella faveolata
Porites porites
reef
Rhodobacteraceae
rRNA 16S
Sea surface temperature
Seawater
Sediments
Substrates
Taxonomy
Water analysis
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Summary:In this study, the bacterial microbiota associated with apparently healthy corals of Acropora palmata, Orbicella faveolata, and Porites porites and the surrounding seawater and sediment were evaluated via the MiSeq Illumina sequencing of the V4 region of 16S rRNA at three reef sites in the Mexican Caribbean. Bacterial assemblages associated with apparently healthy corals and sediments showed no significant differences between sites. The colonies of A. palmata showed a dominance of families Amoebophilaceae, Spirochaetaceae, Myxococcaceae, and Cyclobacteriaceae. Meanwhile, the colonies of O. faveolata and P. porites revealed a high prevalence of the Rhodobacteraceae and Kiloniellaceae families. The families Rhodobacteraceae, Cryomorphaceae, Cyanobiaceae, and Flavobacteriaceae were predominant in seawater samples, while Pirellulaceae, Nitrosococcaceae, and Woeseiaceae were predominant in sediments. Variations in A. palmata bacterial assemblages were correlated with salinity, sea surface temperature, and depth. These variables, along with nitrate, phosphate, and ammonium concentrations, were also correlated with changes in the bacterial composition of P. porites, seawater, and sediments. However, none of the environmental variables were related to the bacterial taxa of O. faveolata. Aerobic chemoheterotrophy and fermentation, followed by nitrate reduction and ureolysis, were the metabolic functions with the highest occurrence in the bacterial assemblages associated with all substrates.
ISSN:1424-2818
1424-2818
DOI:10.3390/d15090964