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Changes in microbial communities, photosynthesis and calcification of the coral Acropora gemmifera in response to ocean acidification.
Sci Rep. 2016 10 27; 6:35971.SR

Abstract

With the increasing anthropogenic CO2 concentration, ocean acidification (OA) can have dramatic effects on coral reefs. However, the effects of OA on coral physiology and the associated microbes remain largely unknown. In the present study, reef-building coral Acropora gemmifera collected from a reef flat with highly fluctuating environmental condition in the South China Sea were exposed to three levels of partial pressure of carbon dioxide (pCO2) (i.e., 421, 923, and 2070 μatm) for four weeks. The microbial community structures associated with A. gemmifera under these treatments were analyzed using 16S rRNA gene barcode sequencing. The results revealed that the microbial community associated with A. gemmifera was highly diverse at the genus level and dominated by Alphaproteobacteria. More importantly, the microbial community structure remained rather stable under different pCO2 treatments. Photosynthesis and calcification in A. gemmifera, as indicated by enrichment of δ18O and increased depletion of δ13C in the coral skeleton, were significantly impaired only at the high pCO2 (2070 μatm). These results suggest that A. gemmifera can maintain a high degree of stable microbial communities despite of significant physiological changes in response to extremely high pCO2.

Authors+Show Affiliations

Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China. Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, China. Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology, Hong Kong SAR, China.Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China.Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology, Hong Kong SAR, China.Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology, Hong Kong SAR, China.Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology, Hong Kong SAR, China.Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology, Hong Kong SAR, China.Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China.Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China.Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China.Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology, Hong Kong SAR, China.Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China. Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

27786309

Citation

Zhou, Guowei, et al. "Changes in Microbial Communities, Photosynthesis and Calcification of the Coral Acropora Gemmifera in Response to Ocean Acidification." Scientific Reports, vol. 6, 2016, p. 35971.
Zhou G, Yuan T, Cai L, et al. Changes in microbial communities, photosynthesis and calcification of the coral Acropora gemmifera in response to ocean acidification. Sci Rep. 2016;6:35971.
Zhou, G., Yuan, T., Cai, L., Zhang, W., Tian, R., Tong, H., Jiang, L., Yuan, X., Liu, S., Qian, P., & Huang, H. (2016). Changes in microbial communities, photosynthesis and calcification of the coral Acropora gemmifera in response to ocean acidification. Scientific Reports, 6, 35971. https://doi.org/10.1038/srep35971
Zhou G, et al. Changes in Microbial Communities, Photosynthesis and Calcification of the Coral Acropora Gemmifera in Response to Ocean Acidification. Sci Rep. 2016 10 27;6:35971. PubMed PMID: 27786309.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Changes in microbial communities, photosynthesis and calcification of the coral Acropora gemmifera in response to ocean acidification. AU - Zhou,Guowei, AU - Yuan,Tao, AU - Cai,Lin, AU - Zhang,Weipeng, AU - Tian,Renmao, AU - Tong,Haoya, AU - Jiang,Lei, AU - Yuan,Xiangcheng, AU - Liu,Sheng, AU - Qian,Peiyuan, AU - Huang,Hui, Y1 - 2016/10/27/ PY - 2016/03/08/received PY - 2016/10/10/accepted PY - 2016/10/28/pubmed PY - 2018/5/1/medline PY - 2016/10/28/entrez SP - 35971 EP - 35971 JF - Scientific reports JO - Sci Rep VL - 6 N2 - With the increasing anthropogenic CO2 concentration, ocean acidification (OA) can have dramatic effects on coral reefs. However, the effects of OA on coral physiology and the associated microbes remain largely unknown. In the present study, reef-building coral Acropora gemmifera collected from a reef flat with highly fluctuating environmental condition in the South China Sea were exposed to three levels of partial pressure of carbon dioxide (pCO2) (i.e., 421, 923, and 2070 μatm) for four weeks. The microbial community structures associated with A. gemmifera under these treatments were analyzed using 16S rRNA gene barcode sequencing. The results revealed that the microbial community associated with A. gemmifera was highly diverse at the genus level and dominated by Alphaproteobacteria. More importantly, the microbial community structure remained rather stable under different pCO2 treatments. Photosynthesis and calcification in A. gemmifera, as indicated by enrichment of δ18O and increased depletion of δ13C in the coral skeleton, were significantly impaired only at the high pCO2 (2070 μatm). These results suggest that A. gemmifera can maintain a high degree of stable microbial communities despite of significant physiological changes in response to extremely high pCO2. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/27786309/Changes_in_microbial_communities_photosynthesis_and_calcification_of_the_coral_Acropora_gemmifera_in_response_to_ocean_acidification_ L2 - https://doi.org/10.1038/srep35971 DB - PRIME DP - Unbound Medicine ER -