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学科主题: 生物科学::普通生物学
题名: The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture
作者: Qi, Q (Qi, Qi)1; Zhao, MX (Zhao, Mengxin)1; Wang, SP (Wang, Shiping)2, 3; Ma, XY (Ma, Xingyu)1; Wang, YX (Wang, Yuxuan)4, 5; Gao, Y (Gao, Ying)1; Lin, QY (Lin, Qiaoyan)6; Li, XZ (Li, Xiangzhen)7; Gu, BH (Gu, Baohua)8; Li, GX (Li, Guoxue)9; Zhou, JZ (Zhou, Jizhong)1, 10, 11, 12, 13; Yang, YF (Yang, Yunfeng)1
通讯作者: Yang, YF
关键词: ELEVATION GRADIENT ; ALPINE MEADOW ; BIOGEOCHEMICAL CYCLES ; COMMUNITY STRUCTURE ; PLANT DIVERSITY ; SOIL TRANSPLANT ; FOREST SOILS ; PLATEAU ; CARBON ; GRASSLAND
刊名: FRONTIERS IN MICROBIOLOGY
发表日期: 2017
DOI: 10.3389/fmicb.2017.00976
卷: 8, 期:0, 页:976
收录类别: SCI
合作性质: 国际
文章类型: Article
类目[WOS]: Microbiology
研究领域[WOS]: Microbiology
英文摘要: As the highest place of the world, the Tibetan plateau is a fragile ecosystem. Given the importance of microbial communities in driving soil nutrient cycling, it is of interest to document the microbial biogeographic pattern here. We adopted a microarray-based tool named GeoChip 4.0 to investigate grassland microbial functional genes along an elevation gradient from 3200 to 3800 m above sea level open to free grazing by local herdsmen and wild animals. Interestingly, microbial functional diversities increase with elevation, so does the relative abundances of genes associated with carbon degradation, nitrogen cycling, methane production, cold shock and oxygen limitation. The range of Shannon diversities (10.27-10.58) showed considerably smaller variation than what was previously observed at ungrazed sites nearby (9.95-10.65), suggesting the important role of livestock grazing on microbial diversities. Closer examination showed that the dissimilarity of microbial community at our study sites increased with elevations, revealing an elevation-decay relationship of microbial functional genes. Both microbial functional diversity and the number of unique genes increased with elevations. Furthermore, we detected a tight linkage of greenhouse gas (CO2) and relative abundances of carbon cycling genes. Our biogeographic study provides insights on microbial functional diversity and soil biogeochemical cycling in Tibetan pastures.
语种: 英语
WOS记录号: WOS:000403138000001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/8195
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing, Peoples R China.
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China.
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China.
4.Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA.
5.Tsinghua Univ, Sch Environm, Collaborat Innovat Ctr Reg Environm Qual, Beijing, Peoples R China.
6.Tsinghua Univ, Dept Earth Syst Sci, Beijing, Peoples R China.
7.Univ Houston, Dept Earth & Atmospher Sci, Houston, TX USA.
8.Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, Northwest Inst Plateau Biol, Xining, Peoples R China.
9.Chinese Acad Sci, Environm Microbiol Key Lab Sichuan Prov, Key Lab Environm & Appl Microbiol, Chengdu Inst Biol, Chengdu, Peoples R China.
10.Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA.
11.China Agr Univ, Coll Resources & Environm Sci, Beijing, Peoples R China.
12.Univ Oklahoma, Inst Environm Genom, Norman, OK 73019 USA.
13.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA.

Recommended Citation:
Qi, Q ,Zhao, MX ,Wang, SP ,et al. The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture[J]. FRONTIERS IN MICROBIOLOGY,2017,8(0):976.
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