Microbial network structure, not plant and microbial community diversity, regulates multifunctionality under increased precipitation in a cold steppe

被引:3
作者
Yang, Xuechen [1 ,2 ]
Song, Wenzheng [2 ]
Yang, Xue [2 ,3 ]
Yang, Tianxue [2 ]
Bao, Wenqing [1 ]
Wang, Chengliang [2 ]
Li, Junqin [2 ]
Zhong, Shangzhi [2 ,4 ]
Jiang, Qi [2 ,5 ]
Li, Lu-Jun [1 ]
Sun, Wei [2 ]
机构
[1] Chinese Acad Sci, Northeast Inst Geog & Agroecol, State Key Lab Black Soils Conservat & Utilizat, Harbin, Peoples R China
[2] Northeast Normal Univ, Inst Grassland Sci, Jilin Songnen Grassland Ecosyst Natl Observat & Re, Key Lab Vegetat Ecol,Minist Educ, Changchun, Peoples R China
[3] Northeast Forestry Univ, Sch Civil Engn & Transportat, Harbin, Peoples R China
[4] Qingdao Agr Univ, Coll Grassland Sci, Grassland Agrihusb Res Ctr, Qingdao, Peoples R China
[5] No Fifteen Sr High Sch Mudanjiang, Mudanjiang, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
biodiversity; co-occurrence ecological networks; ecosystem function; grassland ecosystem; nutrient cycling; rainfall amount; CLIMATE-CHANGE; SOIL; BIODIVERSITY; ABUNDANCE; GRADIENT; IMPACTS; CYCLE;
D O I
10.3389/fmicb.2023.1349747
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
It is known that the dynamics of multiple ecosystem functions (i. e., multifunctionality) are positively associated with microbial diversity and/or biodiversity. However, how the relationship between microbial species affects ecosystem multifunctionality remains unclear, especially in the case of changes in precipitation patterns. To explore the contribution of biodiversity and microbial co-occurrence networks to multifunctionality, we used rainfall shelters to simulate precipitation enhancement in a cold steppe in Northeast China over two consecutive growing seasons. We showed that an increased 50% precipitation profoundly reduced bacterial diversity and multidiversity, while inter-annual differences in precipitation did not shift microbial diversity, plant diversity, or multidiversity. Our analyses also revealed that increased annual precipitation significantly increased ecosystem, soil, nitrogen, and phosphorous cycle multifunctionality. Neither increased precipitation nor inter-annual differences in precipitation had a significant effect on carbon cycle multifunctionality, probably due to the relatively short period (2 years) of our experiment. The co-occurrence network of bacterial and fungal communities was the most dominant factor affecting multifunctionality, the numbers of negative interactions but not positive interactions were linked to multifunctionality. In particular, our results provided evidence that microbial network topological features are crucial for maintaining ecosystem functions in grassland ecosystems, which should be considered in related studies to accurately predict the responses of ecosystem multifunctionality to predicted changes in precipitation patterns.
引用
收藏
页数:11
相关论文
共 50 条
  • [1] Above and belowground community strategies respond to different global change drivers
    Adair, Karen L.
    Lindgreen, Stinus
    Poole, Anthony M.
    Young, Laura M.
    Bernard-Verdier, Maud
    Wardle, David A.
    Tylianakis, Jason M.
    [J]. SCIENTIFIC REPORTS, 2019, 9 (1)
  • [2] Trophic complexity alters the diversity-multifunctionality relationship in experimental grassland mesocosms
    Anujan, Krishna
    Heilpern, Sebastian A.
    Prager, Case M.
    Weeks, Brian C.
    Naeem, Shahid
    [J]. ECOLOGY AND EVOLUTION, 2021, 11 (11): : 6471 - 6479
  • [3] Comparison of soil fungal/bacterial ratios in a pH gradient using physiological and PLFA-based techniques
    Bååth, E
    Anderson, TH
    [J]. SOIL BIOLOGY & BIOCHEMISTRY, 2003, 35 (07) : 955 - 963
  • [4] Primary production and rain use efficiency across a precipitation gradient on the Mongolia plateau
    Bai, Yongfei
    Wu, Jianguo
    Xing, Qi
    Pan, Qingmin
    Huang, Jianhui
    Yang, Dianling
    Han, Xingguo
    [J]. ECOLOGY, 2008, 89 (08) : 2140 - 2153
  • [5] Grazing alters ecosystem functioning and C:N:P stoichiometry of grasslands along a regional precipitation gradient
    Bai, Yongfei
    Wu, Jianguo
    Clark, Chris M.
    Pan, Qingmin
    Zhang, Lixia
    Chen, Shiping
    Wang, Qibing
    Han, Xingguo
    [J]. JOURNAL OF APPLIED ECOLOGY, 2012, 49 (06) : 1204 - 1215
  • [6] Linking microbial co-occurrences to soil ecological processes across a woodland-grassland ecotone
    Banerjee, Samiran
    Thrall, Peter H.
    Bissett, Andrew
    van der Heijden, Marcel G. A.
    Richardson, Alan E.
    [J]. ECOLOGY AND EVOLUTION, 2018, 8 (16): : 8217 - 8230
  • [7] Belowground biodiversity and ecosystem functioning
    Bardgett, Richard D.
    van der Putten, Wim H.
    [J]. NATURE, 2014, 515 (7528) : 505 - 511
  • [8] Soil nitrogen transformation responses to seasonal precipitation changes are regulated by changes in functional microbial abundance in a subtropical forest
    Chen, Jie
    Xiao, Guoliang
    Kuzyakov, Yakov
    Jenerette, G. Darrel
    Ma, Ying
    Liu, Wei
    Wang, Zhengfeng
    Shen, Weijun
    [J]. BIOGEOSCIENCES, 2017, 14 (09) : 2513 - 2525
  • [9] Soil fungal networks are more sensitive to grazing exclusion than bacterial networks
    Chen, Lingling
    Shi, Jiajia
    Bao, Zhihua
    Baoyin, Taogetao
    [J]. PEERJ, 2020, 8
  • [10] Response of the Soil Microbial Community to Changes in Precipitation in a Semiarid Ecosystem
    Cregger, Melissa A.
    Schadt, Christopher W.
    McDowell, Nate G.
    Pockman, William T.
    Classen, Aimee T.
    [J]. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2012, 78 (24) : 8587 - 8594