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PLANT MICROBIOME

Phyllosphere dysbiosis

Nature Plants volume 6, page 434 (2020)Cite this article

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Nature http://doi.org/ggsg29 (2020).

The Arabidopsis quadruple mutant (min7 fls2 efr cerk1), abbreviated to mfec, is defective in multiple plant immune pathways. As a consequence, mutant plants suffer from impaired immunity and display disease symptoms under several different soil conditions. To understand the relationship between leaf microbiota and plant health, Chen and Nomura et al. analysed the abundance, diversity and composition of leaf microbiota in the mfec mutant and the Col-0 control. Although data of total leaf microbiota are comparable between the two groups, they found a significant increase in the abundance of endophytic bacteria as well as a decrease in bacterial diversity in the leaves of the mfec mutant compared to the Col-0 control. In addition to the above analyses, their 16S profiling of the leaf microbial communities assisted to design the subsequent bacterial community transplantation experiments in which members of the leaf endophytic bacterial community, derived from either the mfec mutant (52 members) or the Col-0 control (48 members), are inoculated with healthy Col-0 plants or mfec mutant plants that grow under sterile conditions. Only the mfec 52-member bacterial community caused growth defects and disease symptoms, such as leaf chlorosis and necrosis, in Col-0 plants. Therefore, phyllosphere dysbiosis is likely an important negative factor that regulates plant health.

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  1. Nature Plants https://www.nature.com/nplants

    Lei Lei

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  1. Lei Lei
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Correspondence to Lei Lei.

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Lei, L. Phyllosphere dysbiosis. Nat. Plants 6, 434 (2020). https://doi.org/10.1038/s41477-020-0674-7

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