气候变化领域集成服务门户(CCPortal): Biogeography of the free-living and particle-attached bacteria in Tibetan lakes

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DOI	10.1093/femsec/fiz088
	Biogeography of the free-living and particle-attached bacteria in Tibetan lakes
	Liu, Keshao; Hou, Juzhi; Liu, Yongqin; Hu, Anyi; Wang, Mingda; Wang, Feng; Chen, Yuying; Gu, Zhengquan
通讯作者	Liu, YQ (通讯作者)
发表日期	2019
ISSN	0168-6496
EISSN	1574-6941
卷号	95 期号:7
英文摘要	The free-living (FL) and particle-attached (PA) bacteria have different dispersal potentials and ecological roles in aquatic ecosystems. However, our knowledge of their diversity and regional biogeographic patterns in high-altitude alpine lakes is limited. In this study, to investigate the diversity and geographic patterns of the FL and PA bacterial communities and to quantify the relative influence of environmental filtering and dispersal limitation in shaping the FL and PA bacterial communities, we collected surface water samples from 26 lakes over 1000 kilometers on the Tibetan Plateau. The majority of sequences exclusively in the FL bacteria were Actinobacteria (29.4%), Proteobacteria (27.7%) and Bacteroidetes (21.6%), while sequences exclusively in the PA bacteria were dominated by Proteobacteria (57.9%). The alpha-diversity indices, including Shannon index and Pielou's evenness, were significantly lower in the FL bacteria than that in PA bacteria. The surrounding soils as an important potential source contributed more to the diversity of the PA bacteria than the FL bacteria. Both of the FL and PA bacterial communities exhibited a significant regional distance-decay pattern. Environmental filtering and dispersal limitation were significantly related to the spatial variation of the FL and PA bacterial communities, whereas the environmental filtering/dispersal limitation effect ratio was higher in the FL bacterial communities. Our study is the first to describe the regional-scale spatial variability and to identify the factors that drive regional variability of the FL and PA bacterial communities in Tibetan lakes.
关键词	COMMUNITY COMPOSITION DISPERSAL LIMITATION MACKENZIE RIVER DIVERSITY BACTERIOPLANKTON DYNAMICS PLATEAU VARIABILITY SALINITY ESTUARY
英文关键词	free-living bacteria; particle-attached bacteria; biogeographic patterns; environmental filtering; dispersal limitation; tibetan lakes
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:000484391300012
来源期刊	FEMS MICROBIOLOGY ECOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259437
推荐引用方式 GB/T 7714	Liu, Keshao,Hou, Juzhi,Liu, Yongqin,et al. Biogeography of the free-living and particle-attached bacteria in Tibetan lakes[J]. 中国科学院青藏高原研究所,2019,95(7).
APA	Liu, Keshao.,Hou, Juzhi.,Liu, Yongqin.,Hu, Anyi.,Wang, Mingda.,...&Gu, Zhengquan.(2019).Biogeography of the free-living and particle-attached bacteria in Tibetan lakes.FEMS MICROBIOLOGY ECOLOGY,95(7).
MLA	Liu, Keshao,et al."Biogeography of the free-living and particle-attached bacteria in Tibetan lakes".FEMS MICROBIOLOGY ECOLOGY 95.7(2019).