气候变化领域集成服务门户(CCPortal): Disparity in soil bacterial community succession along a short time-scale deglaciation chronosequence on the Tibetan Plateau

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DOI	10.1007/s42832-020-0027-5
	Disparity in soil bacterial community succession along a short time-scale deglaciation chronosequence on the Tibetan Plateau
	Khan, Ajmal; Kong, Weidong; Ji, Mukan; Yue, Linyan; Xie, Yue; Liu, Jinbo; Xu, Baiqing
通讯作者	Kong, WD (通讯作者)
发表日期	2020
ISSN	2662-2289
EISSN	2662-2297
起始页码	83
结束页码	92
卷号	2 期号:2
英文摘要	Global warming leads to deglaciations in high-elevation regions, which exposes deglaciated soils to microbial colonization. Disparity in year-to-year successional patterns of bacterial community and influencing factors in freshly deglaciated soils remain unclear.We explored the abundance of bacterial 16S rRNA gene and community succession in deglaciated soils along a 14-year chronosequence after deglaciation using qPCR and Illumina sequencing on the Tibetan Plateau. The results showed that the abundance of bacterial 16S rRNA gene gradually increased with increasing deglaciation age. Soil bacterial community succession was clustered into three deglaciation stages, which were the early (zero-year old), transitional (1-7 years old) and late (8-14 years old) stages. A significantly abrupt bacterial community succession occurred from the early to the transitional stage (P < 0.01), while a mild succession (P = 0.078) occurred from the transitional to the late stage. The bacterial community at the early and transitional stages were dominated by Proteobacteria, while the late stage was dominated by Actinobacteria. Less abundant ( < 10%) Acidobacteria, Gemmatimonadetes, Verrucomicrobia, Chloroflexi, Planctomycetes, unclassified bacteria dominantly occurred in the transition and late stage and Cyanobacteria in the early stage. Total organic carbon (24.7%), post deglaciation age (21%), pH (16.5%) and moisture (10.1%) significantly contributed (P < 0.05) to the variation of bacterial community succession. Our findings provided a new insight that short time-scale chronosequence is a good model to study yearly resolution of microbial community succession.
关键词	ARCTIC GLACIER FORELAND 16S RIBOSOMAL-RNA MICROBIAL COMMUNITY DOMINANT BACTERIA DIVERSITY ECOSYSTEM FOREFIELD IMPACT ICE MICROORGANISMS
英文关键词	Deglaciated soils; Bacterial community; Bacterial succession; Tibetan Plateau; Deglaciation chronosequence
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
WOS类目	Ecology ; Soil Science
WOS记录号	WOS:000671269800001
来源期刊	SOIL ECOLOGY LETTERS
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/259682
推荐引用方式 GB/T 7714	Khan, Ajmal,Kong, Weidong,Ji, Mukan,et al. Disparity in soil bacterial community succession along a short time-scale deglaciation chronosequence on the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2020,2(2).
APA	Khan, Ajmal.,Kong, Weidong.,Ji, Mukan.,Yue, Linyan.,Xie, Yue.,...&Xu, Baiqing.(2020).Disparity in soil bacterial community succession along a short time-scale deglaciation chronosequence on the Tibetan Plateau.SOIL ECOLOGY LETTERS,2(2).
MLA	Khan, Ajmal,et al."Disparity in soil bacterial community succession along a short time-scale deglaciation chronosequence on the Tibetan Plateau".SOIL ECOLOGY LETTERS 2.2(2020).