| 5 | Redox sensor QSOX1 regulates plant immunity by targeting GSNOR to modulate ROS generation显示文摘Reactive oxygen signaling regulates numerous biological processes,including stress responses in plants.Redox sensors transduce reactive oxygen signals into cellular responses.Here,we present biochemical evidence that a plant quiescin sulfhydryl oxidase homolog(QSOX1)is a redox sensor that negatively regulates plant immunity against a bacterial pathogen.The expression level of QSOX1 is inversely correlated with pathogen-induced reactive oxygen species(ROS)accumulation.Interestingly,QSOX1 both senses and regulates ROS levels by interactingn with and mediating redox regulation of S-nitrosoglutathione reductase,which,consistent with previous findings,influences reactive nitrogen-mediated regulation of ROS generation.Collectively,our data indicate that QSOX1 is a redox sensorthat negatively regulates plant immunity by linking reactive oxygen and reactive nitrogen signaling to limit ROS production. | Ho Byoung Chae Min Gab Kim Chang Ho Kang Joung Hun Park Eun Seon Lee Sang-Uk Lee Yong Hun Chi Seol Ki Paeng Su Bin Bae Seong Dong Wi Byung-Wook Yun Woe-Yeon Kim Dae-Jin Yun David Mackey Sang Yeol Lee | 2021 | Molecular Plant2021，14，8： | 1 |
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