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Long-term warming rather than grazing significantly changed total and active soil procaryotic community structures
Che, RX (Che, Rongxiao)1,2; Deng, YC (Deng, Yongcui)3,4; Wang, WJ (Wang, Weijin)2,5; Rui, YC (Rui, Yichao)6; Zhang, J (Zhang, Jing)1; Tahmasbian, I (Tahmasbian, Iman)2; Tang, L (Tang, Li)1,2; Wang, SP (Wang, Shiping)7; Wang, YF (Wang, Yanfen)1; Xu, ZH (Xu, Zhihong)2; Cui, XY (Cui, Xiaoyong)1
Source PublicationGEODERMA
2018-04-15
Volume316Issue:0Pages:1-10
DOI10.1016/j.geoderma.2017.12.005
Abstract

There is a paucity of knowledge in understanding the effects of warming and grazing on soil microbes and their active counterparts, especially on the Tibetan Plateau which is extremely sensitive to global warming and human activities. A six-year field experiment was conducted to investigate the effects of asymmetric warming and moderate grazing on total and active soil microbes in a Tibetan Kobresia alpine meadow. Soil bacterial abundance and 16S rDNA transcriptional activity were determined using real-time PCR. Total and active soil procaryotic community structures were analyzed through MiSeq sequencing based on 16S rDNA and rRNA, respectively. The results showed that the soil procaryotic community was more sensitive to the warming than the grazing. The warming significantly decreased soil microbial respiration rates, 16S rDNA transcription activity, and dispersion of total procaryotic community structures, but significantly increased the alpha diversity of active procaryotes. Warming also significantly increased the relative abundance of oligotrophic microbes, whereas decreasing the copiotrophic lineage proportions. The functional profiles predicted from the total procaryotic community structures remained unaffected by warming. However, the rRNA-based predictions suggested that DNA replication, gene expression, signal transduction, and protein degradation were significantly suppressed under the warming. The grazing only significantly decreased the 16S rDNA transcription and total procaryotic richness. Overall, these findings suggest that warming can shift soil procaryotic community to a more oligotrophic and less active status, highlighting the importance of investigating active microbes to improve our understanding of ecosystem feedbacks to climate change and human activities.

WOS IDWOS:000424179300001
Language英语
Indexed BySCIE
Keyword16s Ribosomal-rna Microbial Community Bacterial Community Climate-change Alpine Meadow Temperature Sensitivity Tibetan Plateau Water-content Respiration Carbon
WOS Research AreaAgriculture
WOS SubjectSoil Science
Cooperation Status国际
ISSN0016-7061
Department高寒生态重点实验室
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8678
Collection图书馆
Corresponding AuthorCui, XY (Cui, Xiaoyong)
Affiliation1.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China;
2.Griffith Univ, Sch Nat Sci, Environm Futures Res Inst, Brisbane, Qld 4111, Australia;
3.Nanjing Normal Univ, Nanjing 210097, Jiangsu, Peoples R China;
4.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China;
5.Dept Sci Informat Technol & Innovat DSITI, Brisbane, Qld 4068, Australia;
6.Univ Wisconsin Madison, Dept Soil Sci, Madison, WI 53706 USA;
7.Chinese Acad Sci, Inst Tibetan Plateau Res, Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China.
Recommended Citation
GB/T 7714
Che, RX ,Deng, YC ,Wang, WJ ,et al. Long-term warming rather than grazing significantly changed total and active soil procaryotic community structures[J]. GEODERMA,2018,316(0):1-10.
APA Che, RX .,Deng, YC .,Wang, WJ .,Rui, YC .,Zhang, J .,...&Cui, XY .(2018).Long-term warming rather than grazing significantly changed total and active soil procaryotic community structures.GEODERMA,316(0),1-10.
MLA Che, RX ,et al."Long-term warming rather than grazing significantly changed total and active soil procaryotic community structures".GEODERMA 316.0(2018):1-10.
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