The plant hormone ethylene regulates plant growth,development,and stress responses.Recent studies on early signaling events following ethylene perception in rice(Oryza sativa)have identified MAO HU ZI 3(MHZ3)as a stab...The plant hormone ethylene regulates plant growth,development,and stress responses.Recent studies on early signaling events following ethylene perception in rice(Oryza sativa)have identified MAO HU ZI 3(MHZ3)as a stabilizer of the ethylene receptors ETHYLENE RESPONSE SENSOR 2(OsERS2)and ETHYLENE RECEPTOR 2(OsETR2).MHZ3 ensures the interaction of these receptors with CONSTITUTIVE TRIPLE RESPONSE 2(OsCTR2),thereby maintaining OsCTR2 activity.Ethylene treatment disrupts the interactions within the MHZ3/receptors/OsCTR2 protein complex,leading to decreased OsCTR2 phosphorylation and the initiation of downstream signaling.Recent studies have established MHZ3 as the primary regulator and switch for OsCTR2 phosphorylation.In this review,we explore the role of MHZ3 in regulating ethylene signaling and highlight its effects on plant growth,development,and stress responses at the plant holobiont level.展开更多
基金supported by grants from the National Natural Science Foundation of China(grants 32100227 and 32370016)a Funding from Joint Open Project from Key Laboratory for Enhancing Resource Use Efficiency of Crops in South China,Ministry of Agriculture and Rural Affairs,China and Industrial College of South China Agricultural University-Lardmee Technology Group(grant KLERUECSCMARAC202302).
文摘The plant hormone ethylene regulates plant growth,development,and stress responses.Recent studies on early signaling events following ethylene perception in rice(Oryza sativa)have identified MAO HU ZI 3(MHZ3)as a stabilizer of the ethylene receptors ETHYLENE RESPONSE SENSOR 2(OsERS2)and ETHYLENE RECEPTOR 2(OsETR2).MHZ3 ensures the interaction of these receptors with CONSTITUTIVE TRIPLE RESPONSE 2(OsCTR2),thereby maintaining OsCTR2 activity.Ethylene treatment disrupts the interactions within the MHZ3/receptors/OsCTR2 protein complex,leading to decreased OsCTR2 phosphorylation and the initiation of downstream signaling.Recent studies have established MHZ3 as the primary regulator and switch for OsCTR2 phosphorylation.In this review,we explore the role of MHZ3 in regulating ethylene signaling and highlight its effects on plant growth,development,and stress responses at the plant holobiont level.
