Bacterial diversity, community composition and metabolic function in Lake Tianmuhu and its dammed river: Effects of domestic wastewater and damming

	Bacterial diversity, community composition and metabolic function in Lake Tianmuhu and its dammed river: Effects of domestic wastewater and damming
	Xie, Guijuan; Tang, Xiangming; Shao, Keqiang; Zhu, Guangwei; Gao, Guang
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2021
卷号	213
英文摘要	Anthropogenic disturbances, such as pollution discharge and damming, can lead to a global decline in biodiversity in aquatic ecosystems. However, how such disturbances affect microbial community composition and function remains poorly understood. In November 2019, we explored bacterial diversity, community composition and metabolic function in Lake Tianmuhu, China, and in its upstream dammed river, using Illumina MiSeq sequencing and Biolog EcoPlate method based on carbon source utilization. Our results revealed higher variations in bacterial alpha- and beta-diversity in the dammed river ecosystem than in the lake ecosystem. In addition, the dammed river and lake ecosystems were significantly different in bacterial community compositions and metabolic structures. No significant relationship between species richness and functional (metabolic) diversity was observed in this study. The site that was most impacted by domestic wastewater had the lowest taxonomic diversity but highest metabolic capacity and activity, suggesting that community composition rather than species diversity is more important in determining ecosystem functioning. Overall, our findings indicate that anthropogenic disturbances can significantly alter bacterial community and function, and taxonomic diversity is a weak proxy for ecosystem functioning in a natural freshwater habitat.
内容类型	期刊论文
源URL	[http://159.226.73.51/handle/332005/20574]
专题	中国科学院南京地理与湖泊研究所
推荐引用方式 GB/T 7714	Xie, Guijuan,Tang, Xiangming,Shao, Keqiang,et al. Bacterial diversity, community composition and metabolic function in Lake Tianmuhu and its dammed river: Effects of domestic wastewater and damming[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2021,213.
APA	Xie, Guijuan,Tang, Xiangming,Shao, Keqiang,Zhu, Guangwei,&Gao, Guang.(2021).Bacterial diversity, community composition and metabolic function in Lake Tianmuhu and its dammed river: Effects of domestic wastewater and damming.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,213.
MLA	Xie, Guijuan,et al."Bacterial diversity, community composition and metabolic function in Lake Tianmuhu and its dammed river: Effects of domestic wastewater and damming".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 213(2021).