Статья

Co-occurrence networks reveal more complexity than community composition in resistance and resilience of microbial communities

Cheng GaoDepartment of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA. [email protected]Ling XuDepartment of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USALiliam MontoyaDepartment of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USAMary MaderaDepartment of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USAJoy HollingsworthUniversity of California Kearney Agricultural Research & Extension Center, Parlier, CA, 93648, USALiang ChenCAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, ChinaElizabeth PurdomDepartment of Statistics, University of California, Berkeley, CA, 94720, USAVasanth SinganDepartment of Energy Joint Genome Institute, 1 Cyclotron Rd., Berkeley, CA, 94720, USAJohn P. VogelDepartment of Energy Joint Genome Institute, 1 Cyclotron Rd., Berkeley, CA, 94720, USARobert B. HutmacherUC Davis Department of Plant Sciences, University of California West Side Research & Extension Center, Five Points, CA, 93624, USJeffery DahlbergUniversity of California Kearney Agricultural Research & Extension Center, Parlier, CA, 93648, USADevin Coleman‐DerrDepartment of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USAPeggy G. LemauxDepartment of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USAJohn W. TaylorDepartment of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA. [email protected]

2022en

ABI

Аннотация

Plant response to drought stress involves fungi and bacteria that live on and in plants and in the rhizosphere, yet the stability of these myco- and micro-biomes remains poorly understood. We investigate the resistance and resilience of fungi and bacteria to drought in an agricultural system using both community composition and microbial associations. Here we show that tests of the fundamental hypotheses that fungi, as compared to bacteria, are (i) more resistant to drought stress but (ii) less resilient when rewetting relieves the stress, found robust support at the level of community composition. Results were more complex using all-correlations and co-occurrence networks. In general, drought disrupts microbial networks based on significant positive correlations among bacteria, among fungi, and between bacteria and fungi. Surprisingly, co-occurrence networks among functional guilds of rhizosphere fungi and leaf bacteria were strengthened by drought, and the same was seen for networks involving arbuscular mycorrhizal fungi in the rhizosphere. We also found support for the stress gradient hypothesis because drought increased the relative frequency of positive correlations.

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Идентификаторы

DOI: 10.1038/s41467-022-31343-y

Цитирования и источники

Цитирований: 2Использованных источников: 0

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