气候变化领域集成服务门户(CCPortal): Diversity and succession of autotrophic microbial community in high-elevation soils along deglaciation chronosequence

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DOI	10.1093/femsec/fiw160
	Diversity and succession of autotrophic microbial community in high-elevation soils along deglaciation chronosequence
	Liu, Jinbo; Kong, Weidong; Zhang, Guoshuai; Khan, Ajmal; Guo, Guangxia; Zhu, Chunmao; Wei, Xiaojie; Kang, Shichang; Morgan-Kiss, Rachael M.
发表日期	2016
ISSN	0168-6496
EISSN	1574-6941
卷号	92 期号:10
英文摘要	Global warming has resulted in substantial glacier retreats in high-elevation areas, exposing deglaciated soils to harsh environmental conditions. Autotrophic microbes are pioneering colonizers in the deglaciated soils and provide nutrients to the extreme ecosystem devoid of vegetation. However, autotrophic communities remain less studied in deglaciated soils. We explored the diversity and succession of the cbbL gene encoding the large subunit of form I RubisCO, a key CO2-fixing enzyme, using molecular methods in deglaciated soils along a 10-year deglaciation chronosequence on the Tibetan Plateau. Our results demonstrated that the abundance of all types of form I cbbL (IA/B, IC and ID) rapidly increased in young soils (0-2.5 years old) and kept stable in old soils. Soil total organic carbon (TOC) and total nitrogen (TN) gradually increased along the chronosequence and both demonstrated positive correlations with the abundance of bacteria and autotrophs, indicating that soil TOC and TN originated from autotrophs. Form IA/B autotrophs, affiliated with cyanobacteria, exhibited a substantially higher abundance than IC and ID. Cyanobacterial diversity and evenness increased in young soils (< 6 years old) and then remained stable. Our findings suggest that cyabobacteria play an important role in accumulating TOC and TN in the deglaciated soils.Autotrophic microorganisms rapidly colonized young deglaciated soils and their abundance positively correlated with total organic carbon and total nitrogen, suggesting that soil TOC and TN originated from autotrophs.Autotrophic microorganisms rapidly colonized young deglaciated soils and their abundance positively correlated with total organic carbon and total nitrogen, suggesting that soil TOC and TN originated from autotrophs.
关键词	autotrophic microbial community deglaciated soil Tibetan Plateau cyanobacteria
学科领域	Microbiology
语种	英语
WOS研究方向	Microbiology
来源期刊	FEMS MICROBIOLOGY ECOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111829
作者单位	Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Bldg 3,Courtyard 16,Lincui Rd, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jinbo,Kong, Weidong,Zhang, Guoshuai,et al. Diversity and succession of autotrophic microbial community in high-elevation soils along deglaciation chronosequence[J]. 中国科学院西北生态环境资源研究院,2016,92(10).
APA	Liu, Jinbo.,Kong, Weidong.,Zhang, Guoshuai.,Khan, Ajmal.,Guo, Guangxia.,...&Morgan-Kiss, Rachael M..(2016).Diversity and succession of autotrophic microbial community in high-elevation soils along deglaciation chronosequence.FEMS MICROBIOLOGY ECOLOGY,92(10).
MLA	Liu, Jinbo,et al."Diversity and succession of autotrophic microbial community in high-elevation soils along deglaciation chronosequence".FEMS MICROBIOLOGY ECOLOGY 92.10(2016).