Molecular aspects of basic innate immunity in Hordeum vulgare L.

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Abstract

Basic innate immunity in plants is achieved via interactions between highly conserved pathogen-associated molecular structures and plant pattern recognition receptors, leading to elicitation of signaling cascades triggering molecular and cell defense mechanisms. At present, most of the components of basic innate immunity in barley have not been identified yet. Here, an overview of current knowledge on mechanisms underlying innate immunity in cereals is presented, based mostly on the data obtained for representatives of Triticeae and Oryzaeae, with a focus on the relationship between immunity, induction of autophagy and elicitation of programmed cell death during the defense response in barley.

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About the authors

Ksenia S. Dobryakova

Komarov Botanical Institute of the Russian Academy of Sciences

Email: KDobryakova@binran.ru
SPIN-code: 4197-0725
Scopus Author ID: 57200207883

PhD, Junior Researcher, Laboratory of Molecular and Ecological Physiology

Russian Federation, Saint Petersburg

Olga Voitsekhovskaja

Komarov Botanical Institute of the Russian Academy of Sciences

Author for correspondence.
Email: ovoitse@binran.ru
ORCID iD: 0000-0003-0966-1270
SPIN-code: 1023-3138
Scopus Author ID: 7801582270
ResearcherId: B-8422-2013

PhD, Head of Molecular and Ecological Physiology Laboratory

Russian Federation, Saint Petersburg

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2. Molecularly characterized to date components of innate nonspecific immunity of Hordeum vulgare L. Thin dashed arrows and question marks indicate uncharacterized molecular components. Thick dashed arrows show the activation of cellular processes. RHC - hypersensitivity reaction; HvCERK - chitin receptor (receptor-like kinase); HvCEBiP - chitin receptor (receptor-like protein); HvRAC - RAC-GTPase B; HvPWMK1 - MAP kinase; HvMPK4 - MAP kinase; WRKY - transcription factors; HvBI-1 - Bax inhibitor 1

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