1. Medical College, Guangxi University, Guangxi, Nanning 530004, China
2. School of Chemistry and Chemical Engineering, Guangxi University, Guangxi, Nanning 530004, China
3. Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Coral Reef Research Center of China, School of Marine Sciences, Guangxi University, Guangxi, Nanning 530004, China