Anthropogenic protection alters the microbiome in intertidal mangrove wetlands in Hainan Island
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Intertidal mangrove wetlands are of great economic and ecological importance. The regular influence of tides has led to the microbial communities in these wetlands differing significantly from those in other habitats. In this study, we investigated the microbiomes of the two largest mangrove wetlands in Hainan Island, China, which have different levels of anthropogenic protection. Soil samples were collected from the root zone of 13 mangrove species. The microbial composition, including key functional groups, was assessed using Illumina sequencing. Bioinformatics analysis showed that there was a significant difference in the microbiomes between the protected Bamen Bay and the unprotected Dongzhai Bay. The overall microbiome was assigned into 78 phyla and Proteobacteria was the most abundant phylum at both sites. In the protected wetland, there were fewer marine-related microbial communities, such as sulfate-reducing bacteria, and more terrestrial-related communities, such as Verrucomicrobia methanotrophs. We also observed distinct microbial compositions among the different mangrove species at the protected site. Our data suggest that the different microbiomes of the two mangrove wetlands are the result of a complex interaction of the different environmental variables at the two sites.
KeywordsHainan Island Mangrove wetland Microbiome Functional group Environmental variable
We thank professor Wenbin Du from the Institute of Microbiology, Chinese Academy of Sciences, for valuable suggestions in English writing and language editing.
Compliance with ethical standards
This study was funded by the National Natural Science Foundation of China (grant nos. 31500447 and 41401075), the Open Project of Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences (grant no. kf2016007), the Strategic Priority Research Program of Chinese Academy of Sciences B (grant no. XDB15040102), and the Natural Science Foundation of Jiangsu Province, China (grant no. BK20140923).
Conflict of interest
All authors declare that they have no conflict of interest.
This article does not contain any studies with human participants or animals performed by any of the authors.
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