首页|Global characterization of OsPIP aquaporins reveals that the H2O2 transporter OsPIP2;6 increases resistance to rice blast
Global characterization of OsPIP aquaporins reveals that the H2O2 transporter OsPIP2;6 increases resistance to rice blast
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Plasma membrane intrinsic proteins(PIPs)are conserved plant aquaporins that transport small mole-cules across the plasma membrane to trigger instant stress responses and maintain cellular homeostasis under biotic and abiotic stress.To elucidate their roles in plant immunity to pathogen attack,we charac-terized the expression patterns,subcellular localizations,and H2O2-transport ability of 11 OsPIPs in rice(Oryza sativa),and identified OsPIP2;6 as necessary for rice disease resistance.OsPIP2;6 resides on the plasma membrane and facilitates cytoplasmic import of the immune signaling molecule H2O2.Knockout of OsPIP2;6 increases rice susceptibility to Magnaporthe oryzae,indicating a positive function in plant immunity.OsPIP2;6 interacts with OsPIP2;2,which has been reported to increase rice resistance to pathogens via H2O2 transport.Our findings suggest that OsPIP2;6 cooperates with OsPIP2;2 as a defense signal transporter complex during plant-pathogen interaction.
State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources,College of Life Sciences,South China Agricultural University,Guangzhou 510642,Guangdong,China
Guangdong Laboratory for Lingnan Modern Agriculture,Guangzhou 510642,Guangdong,China
National Key Laboratory of Plant Molecular Genetics,Shanghai Center for Plant Stress Biology,CAS Center for Excellence in Molecular Plant Sciences,Shanghai Institute of Plant Physiology and Ecology,Chinese Academy of Sciences,Shanghai 200032,Chin
Guangdong Basic and Applied Basic Research FoundationGuangdong Basic and Applied Basic Research Foundation
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