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A plant genetic network for preventing dysbiosis in the phyllosphere.

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Date
2020-04-08
Authors
Chen, Tao
Nomura, Kinya
Wang, Xiaolin
Sohrabi, Reza
Xu, Jin
Yao, Lingya
Paasch, Bradley C
Ma, Li
Kremer, James
Cheng, Yuti
Zhang, Li
Wang, Nian
Wang, Ertao
Xin, Xiu-Fang
He, Sheng Yang
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Abstract
The aboveground parts of terrestrial plants, collectively called the phyllosphere, have a key role in the global balance of atmospheric carbon dioxide and oxygen. The phyllosphere represents one of the most abundant habitats for microbiota colonization. Whether and how plants control phyllosphere microbiota to ensure plant health is not well understood. Here we show that the Arabidopsis quadruple mutant (min7 fls2 efr cerk1; hereafter, mfec)1, simultaneously defective in pattern-triggered immunity and the MIN7 vesicle-trafficking pathway, or a constitutively activated cell death1 (cad1) mutant, carrying a S205F mutation in a membrane-attack-complex/perforin (MACPF)-domain protein, harbour altered endophytic phyllosphere microbiota and display leaf-tissue damage associated with dysbiosis. The Shannon diversity index and the relative abundance of Firmicutes were markedly reduced, whereas Proteobacteria were enriched in the mfec and cad1S205F mutants, bearing cross-kingdom resemblance to some aspects of the dysbiosis that occurs in human inflammatory bowel disease. Bacterial community transplantation experiments demonstrated a causal role of a properly assembled leaf bacterial community in phyllosphere health. Pattern-triggered immune signalling, MIN7 and CAD1 are found in major land plant lineages and are probably key components of a genetic network through which terrestrial plants control the level and nurture the diversity of endophytic phyllosphere microbiota for survival and health in a microorganism-rich environment.
Type
Journal article
Subject
Proteobacteria
Arabidopsis
Plant Components, Aerial
Plant Leaves
Guanine Nucleotide Exchange Factors
Arabidopsis Proteins
Environment
Cell Death
Plant Diseases
Homeostasis
Genotype
Phenotype
Mutation
Genes, Plant
Gene Regulatory Networks
Plant Immunity
Microbiota
Firmicutes
Permalink
https://hdl.handle.net/10161/21718
Published Version (Please cite this version)
10.1038/s41586-020-2185-0
Publication Info
Chen, Tao; Nomura, Kinya; Wang, Xiaolin; Sohrabi, Reza; Xu, Jin; Yao, Lingya; ... He, Sheng Yang (2020). A plant genetic network for preventing dysbiosis in the phyllosphere. Nature, 580(7805). pp. 653-657. 10.1038/s41586-020-2185-0. Retrieved from https://hdl.handle.net/10161/21718.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

He

Sheng-Yang He

Benjamin E. Powell Distinguished Professor of Biology
Interested in the fascinating world of plants, microbes or inter-organismal communication and co-evolution? Please contact Prof. Sheng-Yang He (shengyang.he@duke.edu; hes@msu.edu). Millions of years of co-evolution between plants and microbes have resulted in an intricate web of attack, counter-attack, decoy, and hijacking mechanisms in biology. Moreover, co-evolution between plants and microbes is greatly impacted by ongoing climate
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