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- Title
PREDICTION OF MICROBIAL COMMUNITY STRUCTURE AND FUNCTION IN SURFACE SEDIMENTS OF BAHE CASCADE HYDROPOWER STATION IN THE DRY SEASON IN CHINA.
- Authors
ZHANG, D. Y.; ZONG, Y. C.
- Abstract
Bahe river is the secondary tributary of the Yarlung Zangbo river, and the largest tributary of Nyang River in China, for which we analyzed the microbial diversity, community structure and metabolic function diversity in the surface sediments of 3 cascade hydropower stations upstream and downstream and their adjacent tributaries were analyzed by high-throughput sequencing. The study has shown that the abundance of microbial community in the surface sediments of Bahe cascade hydropower station were as follows S7(downstream of Laozui Hydropower Station), S3(downstream of 606 Hydropower Station), S5(Zhulaqu of Bahe tributary), S4(upstream of Xueka Hydropower Station), S1(upstream of 606 Hydropower Station), S2 (Zimuzhongnongbaqu of Bahe tributary) and S6(downstream of Xueka Hydropower Station/upstream of Laozui Hydropower Station), and the microbial diversity and abundance of 7 sampling points were lower than those of other areas. The predominant bacteria in the surface sediments of Bahe cascade hydropower stations are Proteobacteria, Cyanobacteria, Frimicutes, Actinobacteria, Bacteroides, etc. The dominant bacteria are Exiguobacterium, Tychonema_CCAP_1459-11B, norank_f__unclassified_o__Oxypotobacteria_Incertae_Sedis, Hyphobacterium, Sphingorhabdus, Leptolyngbya_FYG, Phytobacter, Pseudoarthrobacter, Pseudoarthrobacter, Unclassified_f__ Microbacteriaceae. Predominant bacteria varied significantly between samples. Further study shown that total phosphorus, temperature and flow velocity were the main factors affecting microbial community structure in plateau rivers. And the cascade effect also affects the microbial community structure, the functional genes, functional proteins, dominant enzymes and FAPROTAX functions of the river in S3 and S4. However, cascade effect was failure in S6, S7.
- Subjects
CHINA; MICROBIAL communities; WATER power; MICROBIAL diversity; SURFACE structure; FLOW velocity; NUCLEOTIDE sequencing; SEDIMENTS
- Publication
Applied Ecology & Environmental Research, 2023, Vol 21, Issue 5, p4233
- ISSN
1589-1623
- Publication type
Article
- DOI
10.15666/aeer/2105_42334254