辽河口芦苇湿地细菌和古菌群落周期日变化特征

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Abstract

The present study investigated the diurnal variations of bacterial and archaeal communities in Liaohe estuarine wetland in autumn, using the real-time fluorescence quantitative PCR method and Illumina high-throughput sequencing. The results showed that 52802 bacterial and 106091 archaeal sequences were obtained, which could be classified into 530 and 979 OTUs in 97% similarity level, respectively. The results showed that bacterial and archaeal 16S rRNA gene abundances both had the highest values in the morning, and the lowest ones at midnight. There were diurnal variations in the bacterial and archaeal community α-diversity indices, and obvious temporal changes were also observed in the bacterial and archaeal community compositions and structures. In addition, Liaohe estuarine wetland had high potential ability of methanogenesis which could be reflected by the composition of archaeal community. This study provides the basic information and knowledge to further understand the characteristics and functions of bacterial and archaeal communities in estuarine wetlands.

Key words： wetland 16S rRNA bacteria archaea community structure

Received: 21 June 2018

PACS:

X172

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	LI Ming-yue
	MI Tie-zhu
	ZHEN Yu
	WANG Xun-gong

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LI Ming-yue,MI Tie-zhu,ZHEN Yu等. Diurnal variations of bacterial and archaeal communities in the reed wetland of Liaohe estuary[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(2): 849-858.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I2/849

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