首页|The Magnaporthe oryzae effector Avr-PikD suppresses rice immunity by inhibiting an LSD1-like transcriptional activator

The Magnaporthe oryzae effector Avr-PikD suppresses rice immunity by inhibiting an LSD1-like transcriptional activator

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Avirulence effectors(Avrs),encoded by plant pathogens,can be recognized by plants harboring the cor-responding resistance proteins,thereby initiating effector-triggered immunity(ETI).In susceptible plants,however,Avrs can function as effectors,facilitating infection via effector-triggered susceptibility(ETS).Mechanisms of Avr-mediated ETS remain largely unexplored.Here we report that the Magnaporthe oryzae effector Avr-PikD enters rice cells via the canonical cytoplasmic secretion pathway and suppresses rice basal defense.Avr-PikD interacts with an LSD1-like transcriptional activator AKIP30 of rice,and AKIP30 is also a positive regulator of rice immunity,whereas Avr-PikD impedes its nuclear localization and suppresses its transcriptional activity.In summary,M.oryzae delivers Avr-PikD into rice cells to facil-itate ETS by inhibiting AKIP30-mediated transcriptional regulation of immune response against M.oryzae.

Magnaporthe oryzaeAvirulence effector Avr-PikDEffector-triggered susceptibilityRice immunityTranscriptional activator

Jiayuan Guo、Yiling Wu、Jianqiang Huang、Kaihui Yu、Meilian Chen、Yijuan Han、Zhenhui Zhong、Guodong Lu、Yonghe Hong、Zonghua Wang、Xiaofeng Chen

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Fujian Universities Engineering Research Center of Marine Biology and Drugs,Fuzhou Institute of Oceanography,College of Geography and Oceanography,Minjiang University,Fuzhou 350108,Fujian,China

Ministerial and Provincial Joint Innovation Center for Safety Production of Cross-Strait Crops,Minjiang University,Fuzhou 350108,Fujian,China

State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops,College of Plant Protection,Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian,China

Rice Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350018,Fujian,China

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国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金福建省自然科学基金福建省自然科学基金福建省自然科学基金Fujian Provincial Science and Technology Key ProjectExternal Cooperation Program of Fujian Academy of Agricultural SciencesState Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crop Opening ProjectProject of Fujian Provincial Department of Education

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2024

10.1016/j.cj.2024.01.011

作物学报(英文版)

作物学报(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.12(2)
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