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DOI	10.3389/fmicb.2023.1181658
	Response of methanogenic community and their activity to temperature rise in alpine swamp meadow at different water level of the permafrost wetland on Qinghai-Tibet Plateau
	Cui, Hongpeng; Wang, Yanfa; Su, Xin; Wei, Shiping; Pang, Shouji; Zhu, Youhai; Zhang, Shuai; Ma, Chenjie; Hou, Weiguo; Jiang, Hongchen
发表日期	2023
EISSN	1664-302X
卷号	14
英文摘要	Wetlands are an important source of atmospheric methane (CH4) and are sensitive to global climate change. Alpine swamp meadows, accounting for similar to 50% of the natural wetlands on the Qinghai-Tibet Plateau, were considered one of the most important ecosystems. Methanogens are important functional microbes that perform the methane producing process. However, the response of methanogenic community and the main pathways of CH4 production to temperature rise remains unknown in alpine swamp meadow at different water level in permafrost wetlands. In this study, we investigated the response of soil CH4 production and the shift of methanogenic community to temperature rise in the alpine swamp meadow soil samples with different water levels collected from the Qinghai-Tibet Plateau through anaerobic incubation at 5 degrees C, 15 degrees C and 25 degrees C. The results showed that the CH4 contents increased with increasing incubation temperature, and were 5-10 times higher at the high water level sites (GHM1 and GHM2) than that at the low water level site (GHM3). For the high water level sites (GHM1 and GHM2), the change of incubation temperatures had little effect on the methanogenic community structure. Methanotrichaceae (32.44-65.46%), Methanobacteriaceae (19.30-58.86%) and Methanosarcinaceae (3.22-21.24%) were the dominant methanogen groups, with the abundance of Methanotrichaceae and Methanosarcinaceae having a significant positive correlation with CH4 production (p < 0.01). For the low water level site (GHM3), the methanogenic community structure changed greatly at 25 degrees C. The Methanobacteriaceae (59.65-77.33%) was the dominant methanogen group at 5 degrees C and 15 degrees C; In contrast, the Methanosarcinaceae (69.29%) dominated at 25 degrees C, and its abundance showed a significant positive correlation with CH4 production (p < 0.05). Collectively, these findings enhance the understanding of methanogenic community structures and CH4 production in permafrost wetlands with different water levels during the warming process.
关键词	Qinghai-Tibet Plateau permafrost wetland alpine swamp meadow methane production methanogen
英文关键词	16S RIBOSOMAL-RNA; RICE FIELD SOIL; ARCHAEAL COMMUNITY; METHANE EMISSIONS; METHANOTROPHIC COMMUNITIES; MICROBIAL COMMUNITIES; ZOIGE WETLAND; CARBON; OXIDATION; ACETATE
WOS研究方向	Microbiology
WOS记录号	WOS:000989435600001
来源期刊	FRONTIERS IN MICROBIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282860
作者单位	China University of Geosciences - Beijing; China University of Geosciences - Beijing; China Geological Survey
推荐引用方式 GB/T 7714	Cui, Hongpeng,Wang, Yanfa,Su, Xin,et al. Response of methanogenic community and their activity to temperature rise in alpine swamp meadow at different water level of the permafrost wetland on Qinghai-Tibet Plateau[J],2023,14.
APA	Cui, Hongpeng.,Wang, Yanfa.,Su, Xin.,Wei, Shiping.,Pang, Shouji.,...&Jiang, Hongchen.(2023).Response of methanogenic community and their activity to temperature rise in alpine swamp meadow at different water level of the permafrost wetland on Qinghai-Tibet Plateau.FRONTIERS IN MICROBIOLOGY,14.
MLA	Cui, Hongpeng,et al."Response of methanogenic community and their activity to temperature rise in alpine swamp meadow at different water level of the permafrost wetland on Qinghai-Tibet Plateau".FRONTIERS IN MICROBIOLOGY 14(2023).