Functions of Phytohormones During the Interactions Between Rice, Pathogens

doi:10.13560/j.cnki.biotech.bull.1985.2017-1104

Abstract

Abstract: Rice is the uppermost food crop,thus is critical in people’s living and national economy in China. The control of pathogens and pests is crucial in the rice production year by year. Therefore,understanding the mechanisms underlying the interaction between rice and its pathogens is meaningful and instructive for rice breeding and production. Phytohormones are small signaling compounds and essential in regulating the growth,development,and aging of plant. Recently,increasingly evidences indicate that plant endogenous phytohormones also play important roles in response to pathogen challenges. With more and more analysis of the mechanism of disease resistance and susceptibility in rice,the important function of plant hormones is becoming growingly clear. It is well known that salicylates（SAs）,jasmonates（JAs）,and ethylene（ET）,functioning in synergistic or antagonistic manners,are primarily involved in plant defense. Brassinosteroids（BRs）,gibberellins（GAs）,abscisic acid（ABA）,auxins（IAA）,and cytokinins（CKs）also function in plant defense,either alone or crosstalk with the primary defense hormones of SAs,JAs,and ET. This study reviewed the role of plant hormones in rice disease resistance or susceptibility,and prospected its future research in order to provide theoretical basis for the prevention and control of rice diseases.

Key words: rice, phytohormones, disease resistance, regulation mechanism, interaction

KUANG Yong-jie, LIU Lang, YAN Fang, REN Bin, YAN Da-qi, ZHANG Da-wei, LIN Hong-hui, ZHOU Huan-bin. Functions of Phytohormones During the Interactions Between Rice, Pathogens[J]. Biotechnology Bulletin, 2018, 34(2): 74-86.

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