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| Dynamics of Microbial Community and Its Metabolisms of Different Carbon Sources in Tilapia Ponds |
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| KeyWord:microbial community; carbon source; metabolism; dynamic variation; pond |
| Author Name | Affiliation | | CAO Yu-cheng | Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Key Lab of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China | | LI Zhuo-jia | Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Key Lab of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China | | WEN Guo-liang | Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Key Lab of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China | | YUAN Cui-lin | Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Key Lab of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
Guangzhou Zhenhongkezhan Environmental Technology Co., Ltd., Guangzhou 510600, China
Key Lab of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institutes, Institute of Hydrobiology, Jinan University, Guangzhou 510632, China | | YANG Ying-ying | Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Key Lab of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China | | HU Xiao-juan | Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Key Lab of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China | | LIN Xiao-tao | Key Lab of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institutes, Institute of Hydrobiology, Jinan University, Guangzhou 510632, China |
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| Abstract: |
| Heterotrophic bacteria and Bacillus are important indexes of water quality. Their quantity and carbon utilization dynamics were monitored during the tilapia culture season. Biolog ECO microplates were used to analyze microbial utilization dynamics of 31 different carbon sources such as amino acids, saccharides and derivatives, fatty acids and lipids, metabolic intermediates and secondary metabolites. No significant fluctuations of heterotrophic bacteria and Bacillus quantity were observed during May to October. Microbial utilization varied little for most carbon sources during the season. However, nine carbon sources were utilized more than other 22 carbon sources. These were D-Mannitol, N-Acetyl-D-Glucosamine and D-Cellobiose of saccharides; L-Asparagine, L-Serine of amino acids; Pyruvic acid methyl ester, Tween 40 and Tween 80 of lipids; Putrescine of metabolic intermediates. The results indicate that bacterium quantity and its metabolic activity are both stable, and bacteria have selective metabolisms of different carbon sources. |
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