- Information
- Symbol: OsMKKK70
- MSU: LOC_Os01g50410
- RAPdb: Os01g0699500
- Publication
- OsMKKK70 regulates grain size and leaf angle in rice through the OsMKK4-OsMAPK6-OsWRKY53 signaling pathway., 2021, J Integr Plant Biol.
- OsMKKK70 Negatively Regulates Cold Tolerance at Booting Stage in Rice., 2022, Int J Mol Sci.
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Genbank accession number
- Key message
- OsMKKK70 regulates grain size and leaf angle in rice through the OsMKK4-OsMAPK6-OsWRKY53 signaling pathway.
- Here we demonstrate that the Oryza sativa Mitogen Activated Protein Kinase Kinase Kinase OsMKKK70 regulates grain size and leaf angle in rice
- The osmkkk62/70 double mutant and the osmkkk55/62/70 triple mutant displayed significantly smaller seeds and a more erect leaf angle compared to the wild type, indicating that OsMKKK70 functions redundantly with its homologs OsMKKK62 and OsMKKK55
- Taken together, these findings suggest that OsMKKK70 might regulates grain size and leaf angle in rice by activating OsMAPK6 and that OsMKKK70, OsMKK4, OsMAPK6, and OsWRKY53 function in a common signaling pathway that controls grain shape and leaf angle
- Biochemical analysis demonstrated that OsMKKK70 is an active kinase and that OsMKKK70 interacts with OsMKK4 and promotes OsMAPK6 phosphorylation
- In this study, a function of OsMKKK70 (Mitogen Activated Protein Kinase Kinase Kinase 70) in response to CTB was characterized
- OsMKKK70 overexpression (OsMKKK70-OE) plants were more sensitive to cold stress at the booting stage with a lower seed setting and pollen fertility, but there was no significant difference between the osmkkk70 mutant and WT
- Considering the effect of functional redundancy, we further tested the CTB response of osmkkk62/70 and osmkkk55/62/70, the double and triple mutants of OsMKKK70 with its closest homologs OsMKKK62 and OsMKKK55, and found that osmkkk62/70 and osmkkk55/62/70 displayed significantly increased CTB with a higher seed setting and pollen fertility, indicating that OsMKKK70 negatively regulates rice CTB
- OsMKKK70 expression was rapidly induced by cold stress at the booting stage
- OsMKKK70 Negatively Regulates Cold Tolerance at Booting Stage in Rice.
- Together, these findings suggest that OsMKKK70 negatively regulates rice CTB by fine-tuning GA levels in anthers
- Connection
- OsMKK4~LARGE11, OsMKKK70, OsMKKK70 regulates grain size and leaf angle in rice through the OsMKK4-OsMAPK6-OsWRKY53 signaling pathway., Biochemical analysis demonstrated that OsMKKK70 is an active kinase and that OsMKKK70 interacts with OsMKK4 and promotes OsMAPK6 phosphorylation
- OsMKK4~LARGE11, OsMKKK70, OsMKKK70 regulates grain size and leaf angle in rice through the OsMKK4-OsMAPK6-OsWRKY53 signaling pathway., Taken together, these findings suggest that OsMKKK70 might regulates grain size and leaf angle in rice by activating OsMAPK6 and that OsMKKK70, OsMKK4, OsMAPK6, and OsWRKY53 function in a common signaling pathway that controls grain shape and leaf angle
- OsMKKK70, OsMPK1~OsMAPK6~OsSIPK, OsMKKK70 regulates grain size and leaf angle in rice through the OsMKK4-OsMAPK6-OsWRKY53 signaling pathway., Biochemical analysis demonstrated that OsMKKK70 is an active kinase and that OsMKKK70 interacts with OsMKK4 and promotes OsMAPK6 phosphorylation
- OsMKKK70, OsMPK1~OsMAPK6~OsSIPK, OsMKKK70 regulates grain size and leaf angle in rice through the OsMKK4-OsMAPK6-OsWRKY53 signaling pathway., Taken together, these findings suggest that OsMKKK70 might regulates grain size and leaf angle in rice by activating OsMAPK6 and that OsMKKK70, OsMKK4, OsMAPK6, and OsWRKY53 function in a common signaling pathway that controls grain shape and leaf angle
- OsMKKK70, OsWRKY53, OsMKKK70 regulates grain size and leaf angle in rice through the OsMKK4-OsMAPK6-OsWRKY53 signaling pathway., Taken together, these findings suggest that OsMKKK70 might regulates grain size and leaf angle in rice by activating OsMAPK6 and that OsMKKK70, OsMKK4, OsMAPK6, and OsWRKY53 function in a common signaling pathway that controls grain shape and leaf angle
- OsMAPKKK55~OsMKKK55, OsMKKK70, OsMKKK70 Negatively Regulates Cold Tolerance at Booting Stage in Rice., Considering the effect of functional redundancy, we further tested the CTB response of osmkkk62/70 and osmkkk55/62/70, the double and triple mutants of OsMKKK70 with its closest homologs OsMKKK62 and OsMKKK55, and found that osmkkk62/70 and osmkkk55/62/70 displayed significantly increased CTB with a higher seed setting and pollen fertility, indicating that OsMKKK70 negatively regulates rice CTB
- OsMKKK70, OsNPK1-PK~OsMAPKKK62~OsMKKK62, OsMKKK70 Negatively Regulates Cold Tolerance at Booting Stage in Rice., Considering the effect of functional redundancy, we further tested the CTB response of osmkkk62/70 and osmkkk55/62/70, the double and triple mutants of OsMKKK70 with its closest homologs OsMKKK62 and OsMKKK55, and found that osmkkk62/70 and osmkkk55/62/70 displayed significantly increased CTB with a higher seed setting and pollen fertility, indicating that OsMKKK70 negatively regulates rice CTB
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