Indian Society of Genetics & Plant Breeding

Induction and suppression of rice innate immunity

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The rice plant is infected by a number of pathogens which
cause significant losses of yield. Plants possess inducible
innate immunity by which they can perceive danger and
mount defense responses. Recognition of the pathogen is
a crucial step in induction of plant immune responses.
Plants can recognise a wide category of molecules related
either to conserved components of pathogen structures,
pathogen secreted molecules or plant damage-associated
molecules. Recognition of these molecules/elicitors by
receptors initiates a signal transduction cascade which
includes phosphorylation of various intermediate proteins,
influx of calcium ions, production of reactive oxygen
species and synthesis of phytohormones. The signaling
intermediates also activate transcription factors leading to
enhanced expression of genes related to defense
associated functions. As immune responses are energy
intensive processes, they are tightly regulated through
phosphorylation/dephosphorylation events or through
degradation of signalling intermediates. The activation of
plant innate immunity suppresses multiplication and spread
of pathogen within the host tissues. In this review we
discuss about key molecular players involved in rice immune

Keywords: Rice, rice diseases, plant immune responses, plant cell signaling, rice innate immunity


Year: 2019
Volume: 79
Issue: 1, Supplement
Article DOI: 10.31742/IJGPB.79S.1.6
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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