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The adjustment of life history strategies drives the ecological adaptations of soil microbiota to aridity

文献类型：期刊论文

作者Li, Chaonan1,2; Liao, Haijun1,2; Xu, Lin1,2; Wang, Changting3; He, Nianpeng4; Wang, Junming5; Li, Xiangzhen1,2
刊名MOLECULAR ECOLOGY
出版日期2022-04-09
页码15
ISSN号0962-1083
关键词aridity gradient functional tradeoffs life history strategies metagenomes soil microbial community xeric grassland
DOI10.1111/mec.16445
通讯作者He, Nianpeng(henp@igsnrr.ac.cn) ; Li, Xiangzhen(lixz@cib.ac.cn)
英文摘要Soil microbiota increase their fitness to local habitats by adjusting their life history strategies. Yet, how such adjustments drive their ecological adaptations in xeric grasslands remains elusive. In this study, shifts in the traits that potentially represent microbial life history strategies were studied along two aridity gradients with different climates using metagenomic and trait-based approaches. The results indicated that resource acquisition (e.g., higher activities of beta-d-glucosidase and N-acetyl-beta-d-glucosidase, higher degradation rates of cellulose and chitin, as well as genes involved in cell motility, biodegradation, transportation and competition) and growth yield (e.g., higher biomass and respiration) strategies were depleted at higher aridity. However, maintenance of cellular and high growth potential (e.g., higher metabolic quotients and genes related to DNA replication, transcription, translation, central carbon metabolism and biosynthesis) and stress tolerance (e.g., genes involved in DNA damage repair, cation transportation, sporulation and osmolyte biosynthesis) strategies were enriched at higher aridity. This implied that microbiota have lower growth yields but are probably well primed for rapid responses to pulses of rainfall in more arid soils, whereas those in less arid soils may have stronger resource acquisition and growth yield abilities. By integrating a large amount of evidence from taxonomic, metagenomic, genomic and biochemical investigations, this study demonstrates that the ecological adaptations of soil microbiota to aridity made by adjusting and optimizing their life history strategies are universal in xeric grasslands and provides an underlying mechanistic understanding of soil microbial responses to climate changes.
WOS关键词CLIMATE-CHANGE ; PRECIPITATION ; COMMUNITIES ; GRADIENT ; BIOMASS ; ALIGNMENT ; GENOME ; KEGG
资助项目National Natural Science Foundation of China[U20A2008] ; National Natural Science Foundation of China[32071548] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program[2019QZKK0302] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program[2019QZKK0606]
WOS研究方向Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
语种英语
出版者WILEY
WOS记录号WOS:000779588700001
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program
源URL[http://ir.igsnrr.ac.cn/handle/311030/173101]  
专题中国科学院地理科学与资源研究所
通讯作者He, Nianpeng; Li, Xiangzhen
作者单位1.Chinese Acad Sci, Key Lab Environm & Appl Microbiol, Chengdu, Peoples R China
2.Chinese Acad Sci, Chengdu Inst Biol, Environm Microbiol Key Lab Sichuan Prov, Chengdu, Peoples R China
3.Southwest Minzu Univ, Inst Qinghai Tibet Plateau, Chengdu, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
5.Univ Illinois, Prairie Res Inst, Sect Climate Sci, Illinois State Water Survey, Champaign, IL USA
推荐引用方式
GB/T 7714		 Li, Chaonan,Liao, Haijun,Xu, Lin,et al. The adjustment of life history strategies drives the ecological adaptations of soil microbiota to aridity[J]. MOLECULAR ECOLOGY,2022:15.
APA Li, Chaonan.,Liao, Haijun.,Xu, Lin.,Wang, Changting.,He, Nianpeng.,...&Li, Xiangzhen.(2022).The adjustment of life history strategies drives the ecological adaptations of soil microbiota to aridity.MOLECULAR ECOLOGY,15.
MLA Li, Chaonan,et al."The adjustment of life history strategies drives the ecological adaptations of soil microbiota to aridity".MOLECULAR ECOLOGY (2022):15.

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来源：地理科学与资源研究所

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