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Microbial membranes related to the thermal acclimation of soil heterotrophic respiration in a temperate steppe in northern China
Shen, Ruichang1,2,3,4,5; Xu, Ming6; Chi, Yonggang7; Yu, Shen8; Wan, Shiqiang9; He, Nianpeng10
2019-08-20
Source PublicationEUROPEAN JOURNAL OF SOIL SCIENCE
ISSN1351-0754
Pages11
Corresponding AuthorXu, Ming(mingxu@igsnrr.ac.cn)
AbstractThere has been an active debate among ecologists about the mechanisms of ephemeral response of soil respiration to climate change. The key questions are whether soil microbes would reduce their physiological rates (thermal acclimation) under a warmer temperature regime?and what are the mechanisms. Using a long-term warming field experiment, we explored the thermal acclimation of soil heterotrophic respiration (R-h) in a temperate steppe ecosystem in Inner Mongolia, China. A thermal acclimation mechanism, namely change in lipid composition of soil microbes, was also tested in this study. Our results showed that 6 years of warming treatment had significantly decreased soil mass-specific respiration (substrate R-mass), indicating soil R-h would acclimate to long-term warming. In addition, we found that this thermal acclimation presented type II acclimation, because experimental warming significantly decreased substrate R-mass but not the Q(10) values. Furthermore, we also found that long-term experimental warming had already increased the carbon numbers of the fatty acids in soil microbial membranes at the community level. In summary, our results indicated that soil R-h could acclimate to global warming via modifying cell membrane constitutions and these mechanisms would play vital roles in the near future. Highlights Soil heterotrophic respiration (R-h) acclimated to long-term warming in a steppe ecosystem. Soil R-h followed type II acclimation as warming decreased substrate R-mass but did not change Q(10). Experimental warming increased the carbon number of the fatty acids in soil microbial membranes. Soil R-h can acclimate to global warming via shifting the lipid constitute of microbial membrane.
Keywordcarbon cycle fatty acid global warming soil heterotrophic respiration soil microbial community thermal acclimation
DOI10.1111/ejss.12872
WOS KeywordORGANIC-MATTER DECOMPOSITION ; CARBON-CYCLE FEEDBACKS ; NITROGEN ADDITION ; CLIMATE-CHANGE ; FOREST SOIL ; SENSITIVITY ; ADAPTATION ; ECOSYSTEM ; INTENSITY ; EXCHANGE
Indexed BySCI
Language英语
Funding ProjectChina Postdoctoral Science Foundation[2017M620129] ; National Natural Science Foundation of China[31600381] ; Natural Science Foundation of Jiangxi Province[20171BAB214008] ; Open Fund Program of Key Laboratory of Poyang Lake Environment and Resource Utilization[PYH2015-10]
Funding OrganizationChina Postdoctoral Science Foundation ; National Natural Science Foundation of China ; Natural Science Foundation of Jiangxi Province ; Open Fund Program of Key Laboratory of Poyang Lake Environment and Resource Utilization
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000482362800001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68818
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXu, Ming
Affiliation1.Nanchang Univ, Inst Life Sci, Ctr Watershed Ecol, Jiangxi Prov Key Lab Watershed Ecosyst Change & B, Nanchang, Jiangxi, Peoples R China
2.Nanchang Univ, Sch Life Sci, Nanchang, Jiangxi, Peoples R China
3.Fudan Univ, Inst Biodivers Sci, Shanghai, Peoples R China
4.Nanchang Univ, Key Lab Poyang Lake Environm & Resource Utilizat, Minist Educ, Nanchang, Jiangxi, Peoples R China
5.Natl Ecosyst Res Stn Jiangxi Poyang Lake Wetland, Nanchang, Jiangxi, Peoples R China
6.Rutgers State Univ, Dept Ecol Evolut & Nat Resources, Ctr Remote Sensing & Spatial Anal, 14 Coll Farm Rd, New Brunswick, NJ 08901 USA
7.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua, Zhejiang, Peoples R China
8.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen, Fujian, Peoples R China
9.Henan Univ, Coll Life Sci, Key Lab Plant Stress Biol, Kaifeng, Peoples R China
10.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Shen, Ruichang,Xu, Ming,Chi, Yonggang,et al. Microbial membranes related to the thermal acclimation of soil heterotrophic respiration in a temperate steppe in northern China[J]. EUROPEAN JOURNAL OF SOIL SCIENCE,2019:11.
APA Shen, Ruichang,Xu, Ming,Chi, Yonggang,Yu, Shen,Wan, Shiqiang,&He, Nianpeng.(2019).Microbial membranes related to the thermal acclimation of soil heterotrophic respiration in a temperate steppe in northern China.EUROPEAN JOURNAL OF SOIL SCIENCE,11.
MLA Shen, Ruichang,et al."Microbial membranes related to the thermal acclimation of soil heterotrophic respiration in a temperate steppe in northern China".EUROPEAN JOURNAL OF SOIL SCIENCE (2019):11.
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