气候变化领域集成服务门户(CCPortal): Contrasting environmental factors drive bacterial and eukaryotic community successions in freshly deglaciated soils

CCPortal

DOI	10.1093/femsle/fnz229
	Contrasting environmental factors drive bacterial and eukaryotic community successions in freshly deglaciated soils
	Khan, Ajmal; Kong, Weidong; Muhammad, Said; Wang, Fei; Zhang, Guoshuai; Kang, Shichang
通讯作者	Kong, WD (通讯作者)
发表日期	2019
ISSN	0378-1097
EISSN	1574-6968
卷号	366 期号:19
英文摘要	Glacier retreats expose deglaciated soils to microbial colonization and succession; however, the differences in drivers of bacterial and eukaryotic succession remain largely elusive. We explored soil bacterial and eukaryotic colonization and yearly community succession along a deglaciation chronosequence (10 years) on the Tibetan Plateau using qPCR, terminal restriction fragment length polymorphism (T-RFLP) and sequencing of clone libraries. The results exhibited that bacteria and eukaryotes rapidly colonized the soils in the first year of deglaciation, thereafter slowly increasing from 107 up to 1010 and 10(11) gene copies g(-1) soil, respectively. Bacterial and eukaryotic community changes were observed to group into distinct stages, including early (0-2 year old), transition (3-5 year old) and late stages (6-10 year old). Bacterial community succession was dominantly driven by soil factors (47.7%), among which soil moisture played a key role by explaining 26.9% of the variation. In contrast, eukaryotic community succession was dominantly driven by deglaciation age (22.2%). The dominant bacterial lineage was Cyanobacteria, which rapidly decreased from the early to the transition stage. Eukaryotes were dominated by glacier-originated Cercozoa in early stage soils, while green algae Chlorophyta substantially increased in late stage soils. Our findings revealed contrasting environmental factors driving bacterial and eukaryotic community successions.
关键词	ZHADANG GLACIER MICROBIAL COMMUNITIES CO2 FIXATION DIVERSITY FUNGAL DESERT ICE GRADIENTS FOREFIELD ABUNDANCE
英文关键词	bacteria; eukaryotes; deglaciated soil; succession; Tibetan Plateau
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:000504087600002
来源期刊	FEMS MICROBIOLOGY 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/259439
推荐引用方式 GB/T 7714	Khan, Ajmal,Kong, Weidong,Muhammad, Said,et al. Contrasting environmental factors drive bacterial and eukaryotic community successions in freshly deglaciated soils[J]. 中国科学院青藏高原研究所,2019,366(19).
APA	Khan, Ajmal,Kong, Weidong,Muhammad, Said,Wang, Fei,Zhang, Guoshuai,&Kang, Shichang.(2019).Contrasting environmental factors drive bacterial and eukaryotic community successions in freshly deglaciated soils.FEMS MICROBIOLOGY LETTERS,366(19).
MLA	Khan, Ajmal,et al."Contrasting environmental factors drive bacterial and eukaryotic community successions in freshly deglaciated soils".FEMS MICROBIOLOGY LETTERS 366.19(2019).