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Updated: Jul 16, 2025

Author Spotlight: Separation of Coral Host Tissues and Algal Symbionts and Analyzing Their Metabolites
Published on: October 13, 2023
Unfolding the secrets of microbiome (Symbiodiniaceae and bacteria) in cold-water coral
Sanqiang Gong1,2, Jiayuan Liang2, Xujie Jin1
1Key Laboratory of Tropical Marine Bio-resources and Ecology & Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , Guangzhou, China.
Importance:
This study shed new light on the functions of both Symbiodiniaceae and bacteria in cold-water coral (CWC). The results demonstrated that Symbiodiniaceae can survive and actively transcribe genes in CWC, suggesting a possible symbiotic or parasitic relationship with the host. This study also revealed complete non-photosynthetic CO2 fixation pathway of bacteria in CWC, as well as their roles in short chain fatty acids production and assimilation of host-derived organic nitrogen and sulfur. These findings highlight the important role of bacteria in the carbon, nitrogen sulfur cycles in CWC, which were possibly crucial for CWC survival in in deep-water environments.
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