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Population turnover promotes fungal stability in a semi-arid grassland under precipitation shifts
Wang, Nannan1,2; Li, Lei2; Zhang, Bingwei3,4; Chen, Shiping; Sun, Wei5; Luo, Yukun6; Dong, Kuanhu6; Han, Xingguo2; Huang, Jianhui2; Xu, Xiaofeng1; Wang, Changhui
AbstractAims Bacteria and fungi are two primary groups of soil microbes, and their stability determines the persistence of microbial functions in response to a changing environment. Recent studies reported higher fungal than bacterial stability under precipitation alteration, the underlying mechanisms, however, remain elusive. Methods A 3-year precipitation manipulation experiment in a semi-arid grassland was used to compare the bacterial and fungal diversities, including alpha diversity, beta diversity and microbial community composition turnover, in response to precipitation manipulations. A framework is proposed to understand the stability properties of bacteria and fungi under precipitation alteration. We conceived a diagrammatic valley to illustrate microbial stability with the depth representing resistance and the width ecological resilience. Important Findings We found that +/- 60% in precipitation significantly reduced the richness and increased the evenness of bacteria but had trivial impacts on fungi. Precipitation alteration yielded stronger impacts on the variation in alpha diversity of bacteria than fungi, suggesting that the bacterial community is more sensitive to water stress than the fungal community. Moreover, fungi had wider composition turnover than that of bacteria, indicating higher composition variation of fungi than bacteria. The population turnover of fungi, reflected by composition variation, coefficient variation of diversity index and composition turnover, was larger than that of bacteria at both temporal and spatial scales, indicating the population turnover promotes fungal stability. The higher stability of fungal community in tolerating water stress is analogous to a ball in a wide valley that swing substantially but remain close to its steady state; while the lower stability of bacteria community is analogous to a ball that swings slightly but stay far away from its steady state. Our finding that the fungal community had higher stability than bacterial community in a semi-arid grassland might be applicable to other biomes.
Keywordbacteria diversity fungi resistance ecological resilience
Subject AreaPlant Sciences ; Ecology ; Forestry
Indexed BySCI
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology ; Forestry
WOS IDWOS:000574426300014
Publication PlaceOXFORD
Funding OrganizationChinese National Key Development Program for Basic Research [2017YFA0604802, 2016YFC0500703] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31770526, 41573063] ; Strategic Priority Research Program on Soil and Microbes of the Chinese Academy of Sciences [XDB15010401] ; Key Laboratory of Vegetation Ecology, Ministry of Education ; San Diego State University ; CSU Program for Education & Research in Biotechnology
Corresponding Author Emailjhhuang@ibcas.ac.cn ; wangch@ibcas.ac.cn
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.San Diego State Univ, Biol Dept, San Diego, CA 92182 USA
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Sun Yat Sen Univ, State Key Lab Biocontrol, Dept Ecol, Guangzhou 510275, Peoples R China
5.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Peoples R China
6.Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun 130024, Jilin, Peoples R China
7.Shanxi Agr Univ, Coll Grassland Sci, Taigu 030801, Shanxi, Peoples R China
Recommended Citation
GB/T 7714
Wang, Nannan,Li, Lei,Zhang, Bingwei,et al. Population turnover promotes fungal stability in a semi-arid grassland under precipitation shifts[J]. JOURNAL OF PLANT ECOLOGY,2020,13(4):499-509.
APA Wang, Nannan.,Li, Lei.,Zhang, Bingwei.,Chen, Shiping.,Sun, Wei.,...&Wang, Changhui.(2020).Population turnover promotes fungal stability in a semi-arid grassland under precipitation shifts.JOURNAL OF PLANT ECOLOGY,13(4),499-509.
MLA Wang, Nannan,et al."Population turnover promotes fungal stability in a semi-arid grassland under precipitation shifts".JOURNAL OF PLANT ECOLOGY 13.4(2020):499-509.
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