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Reference Detail
| Reference | ||
|---|---|---|
| Author | Zhao H., Duan K.X., Ma B., Yin C.C., Hu Y., Tao J.J., Huang Y.H., Cao W.Q., Chen H., Yang C., Zhang Z.G., He S.J., Zhang W.K., Wan X.Y., Lu T.G., Chen S.Y., Zhang J.S. | |
| Title | Histidine kinase MHZ1/OsHK1 interacts with ethylene receptors to regulate root growth in rice. | |
|
Abstract: Ethylene plays essential roles during adaptive responses to water-saturating environments in rice, but knowledge of its signaling mechanism remains limited. Here, through an analysis of a rice ethylene-response mutant MHZ1, we show that MHZ1 positively modulates root ethylene responses. MHZ1 encodes the rice histidine kinase OsHK1. MHZ1/OsHK1 is autophosphorylated at a conserved histidine residue and can transfer the phosphoryl signal to the response regulator OsRR21 via the phosphotransfer proteins OsAHP1/2. This phosphorelay pathway is required for root ethylene responses. Ethylene receptor OsERS2, via its GAF domain, physically interacts with MHZ1/OsHK1 and inhibits its kinase activity. Genetic analyses suggest that MHZ1/OsHK1 acts at the level of ethylene perception and works together with the OsEIN2-mediated pathway to regulate root growth. Our results suggest that MHZ1/OsHK1 mediates the ethylene response partially independently of OsEIN2, and is directly inhibited by ethylene receptors, thus revealing mechanistic details of ethylene signaling for root growth regulation. |
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| Journal | Nat Commun | |
| Country | China | |
| Volume | 11(1) | |
| Pages | 518 | |
| Year | 2020 | |
| PubMed ID | 31980616 | |
| PubMed Central ID | 6981129 | |
| DOI | 10.1038/s41467-020-14313-0 | |
| URL | - | |
| Relation | ||
| Gene | AHP1 AHP2 EIL1A EIN2 ERF2 ERS2 ETR2 HK1 RAP2.8 RR21 RR7 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
|
Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
