Heat stress reduces the contribution of diazotrophs to coral holobiont nitrogen cycling
Embargo End Date2022-06-02
Voolstra, Christian R.
KAUST DepartmentBiological and Environmental Science and Engineering (BESE) Division
Environmental Science and Engineering Program
Marine Science Program
Red Sea Research Center (RSRC)
Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Reef Genomics Lab
KAUST Grant NumberURF/1/ 3400-01-01
Online Publication Date2021-12-02
Print Publication Date2022-04
AbstractEfficient nutrient cycling in the coral-algal symbiosis requires constant but limited nitrogen availability. Coral-associated diazotrophs, i.e., prokaryotes capable of fixing dinitrogen, may thus support productivity in a stable coral-algal symbiosis but could contribute to its breakdown when overstimulated. However, the effects of environmental conditions on diazotroph communities and their interaction with other members of the coral holobiont remain poorly understood. Here we assessed the effects of heat stress on diazotroph diversity and their contribution to holobiont nutrient cycling in the reef-building coral
CitationRädecker, N., Pogoreutz, C., Gegner, H. M., Cárdenas, A., Perna, G., Geißler, L., … Voolstra, C. R. (2021). Heat stress reduces the contribution of diazotrophs to coral holobiont nitrogen cycling. The ISME Journal. doi:10.1038/s41396-021-01158-8
AcknowledgementsWe thank Dr Zenon B. Batang and Dr Nabeel M. Alikunhi for their continuous support and assistance with aquaria maintenance. Further, Ioannis Georgakakis, Mustafa Altunkaya, and Professor Matt Kilburn are acknowledged for their help and support with sample processing and data analysis. We thank the editor and the three anonymous reviewers for their constructive feedback and suggestions. NR, CP, AC, MP, J-BR, and CRV were supported by the KAUST competitive research grant URF/1/ 3400-01-01. CRV also acknowledges funding from the German Research Foundation (DFG), grant 433042944. NR and AM are supported by the Swiss National Science Foundation, grant 200021_179092.
FUNDING Open Access funding enabled and organized by Projekt DEAL.