Effects of Different Vegetable Cultivation on the Microbial Community Structure in Shrimp-vegetable Symbiotic System
[Objective] To study the effects of Ipomoea aquatica, Ipomoea batatas and Lycium chinense on the microbial community structure in shrimp-vegetable symbiotic system.[Method]The composition of microbial community in shrimp-vegetable symbiotic system growing different vegetables was analyzed by high-throughput sequencing technique, and the indexes of nitrate and phosphate in the system were detected. [ Re-sult] The number of OTU shared by microorganisms in different shrimp-vegetable symbiotic systems was 450 species,among them, the number of OTU in Lycium chinense group (LM) was the highest (852 species), and the Shannon-Wiener index and Simpson index were the highest. The removal rates of nitrate and phosphate in Ipomoea aquatica (IF) were 65.70％ and 67.57％, respectively, and the community structure was significantly different from other groups (P<0.05). At the gate level, the dominant flora in different systems were Proteobacteria, Acti-nobacteria and Patescibacteria.At the genus level,while the dominant flora in different systems were Rhodococcus, Acinetobacter and Glutamici-bacter. [ Conclusion] Ipomoea batatas and Lycium chinense were more beneficial to maintain the stability of water environment, and Ipomoea aquatica was more effective in removing nitrate and phosphate.
万方数据
维普
