Transcriptional Regulation of the Immune Receptor FLS2 Controls the Ontogeny of Plant Innate Immunity | Zendy

Yanmin Zou | Zendy; Shuangfeng Wang | Zendy; Yuanyuan Zhou | Zendy; Jiaojiao Bai | Zendy; Guozhong Huang | Zendy; Xiaotong Liu | Zendy; Yingying Zhang | Zendy; Dingzhong Tang | Zendy; Dongping Lu | Zendy

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Transcriptional Regulation of the Immune Receptor FLS2 Controls the Ontogeny of Plant Innate Immunity

Author(s) -

Yanmin Zou,

Shuangfeng Wang,

Yuanyuan Zhou,

Jiaojiao Bai,

Guozhong Huang,

Xiaotong Liu,

Yingying Zhang,

Dingzhong Tang,

Dongping Lu

Publication year - 2018

Publication title -

the plant cell

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.324

H-Index - 341

eISSN - 1532-298X

pISSN - 1040-4651

DOI - 10.1105/tpc.18.00297

Subject(s) - biology , innate immune system , immunity , microbiology and biotechnology , receptor , immune system , plant immunity , immunology , ontogeny , innate lymphoid cell , genetics , gene , arabidopsis , mutant

Innate immunity plays a vital role in protecting plants and animals from pathogen infections. Immunity varies with age in both animals and plants. However, little is known about the ontogeny of plant innate immunity during seedling development. We report here that the Arabidopsis ( Arabidopsis thaliana ) microRNA miR172b regulates the transcription of the immune receptor gene FLAGELLIN-SENSING2 ( FLS2 ) through TARGET OF EAT1 (TOE1) and TOE2, which directly bind to the FLS2 promoter and inhibit its activity. The level of miR172b is very low in the early stage of seedling development but increases over time, which results in decreased TOE1/2 protein accumulation and, consequently, increased FLS2 transcription and the ontogeny of FLS2-mediated immunity during seedling development. Our study reveals a role for the miR172b-TOE1/2 module in regulating plant innate immunity and elucidates a regulatory mechanism underlying the ontogeny of plant innate immunity.plantcell;30/11/2779/FX1F1fx1.

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