- Information
- Symbol: OsGA2ox1
- MSU: LOC_Os05g06670
- RAPdb: Os05g0158600
- Publication
- Activation of gibberellin 2-oxidase 6 decreases active gibberellin levels and creates a dominant semi-dwarf phenotype in rice Oryza sativa L., 2010, Journal of Genetics and Genomics.
- Gibberellin homeostasis and plant height control by EUI and a role for gibberellin in root gravity responses in rice, 2008, Cell Res.
- OsDOG, a gibberellin-induced A20/AN1 zinc-finger protein, negatively regulates gibberellin-mediated cell elongation in rice, 2011, J Plant Physiol.
- Expression of a Gibberellin 2-Oxidase Gene around the Shoot Apex Is Related to Phase Transition in Rice, 2001, Plant Physiol.
- OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice, 2021, J Plant Physiol.
- Orchestration of ethylene and gibberellin signals determines primary root elongation in rice., 2022, Plant Cell.
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Genbank accession number
- Key message
- Unlike the over-expression of OsGA2ox1, which led to a high rate of seed abortion, the H032 mutant retained normal flowering and seed production
- Ectopic expression of theOsGA2ox1 cDNA in transgenic rice inhibited stem elongation and the development of reproductive organs
- OsGA2ox1was expressed in shoot apex and roots but not in leaves and stems
- These observations suggest that OsGA2ox1 controls the level of bioactive GAs in the shoot apical meristem; therefore, reduction in its expression may contribute to the early development of the inflorescence meristem
- We have isolated and characterized a cDNA, designated Oryza sativa GA 2-oxidase 1 (OsGA2ox1) from rice (Oryza sativa L
- These results indicate that OsGA2ox1 encodes a GA 2-oxidase, which is functional not only in vitro but also in vivo
- In situ hybridization analysis revealed that OsGA2ox1 mRNA was localized in a ring at the basal region of leaf primordia and young leaves
- When rice seedlings were subjected to chilling stress, the repressive effect of OsGRF6 on OsGA2ox1 was released by cold-induced SLR1, which activated OsGA2ox1 expression to decrease the active GA levels, enhancing chilling tolerance
- OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice
- The yeast one-hybrid, qRT-PCR, and transactivation assays showed that both SLR1 and OsGRF6 can bind to the promoter of the active GA catabolic gene OsGA2ox1, where SLR1 promoted and OsGRF6 suppressed OsGA2ox1 expression
- At normal temperature, OsGRF6 was responsible for maintaining active GA levels by inhibiting OsGA2ox1
- Connection
- OsGA2ox1, OsGA3ox1, Gibberellin homeostasis and plant height control by EUI and a role for gibberellin in root gravity responses in rice, In addition, the GA biosynthesis genes GA3ox1 and GA20ox2 were downregulated and GA2ox1 was upregulated in eui seedlings
- d18~OsGA3ox2, OsGA2ox1, OsDOG, a gibberellin-induced A20/AN1 zinc-finger protein, negatively regulates gibberellin-mediated cell elongation in rice, Additional GA(1) and real-time PCR quantitative assay analyses confirmed that the decrease of GA(1) in the overexpression lines resulted from reduced expression of GA3ox2 and enhanced expression of GA2ox1 and GA2ox3
- GA2OX3~OsGA2OX3, OsGA2ox1, OsDOG, a gibberellin-induced A20/AN1 zinc-finger protein, negatively regulates gibberellin-mediated cell elongation in rice, Additional GA(1) and real-time PCR quantitative assay analyses confirmed that the decrease of GA(1) in the overexpression lines resulted from reduced expression of GA3ox2 and enhanced expression of GA2ox1 and GA2ox3
- OsGA2ox1, OsGRF6, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice
- OsGA2ox1, OsGRF6, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice, The yeast one-hybrid, qRT-PCR, and transactivation assays showed that both SLR1 and OsGRF6 can bind to the promoter of the active GA catabolic gene OsGA2ox1, where SLR1 promoted and OsGRF6 suppressed OsGA2ox1 expression
- OsGA2ox1, OsGRF6, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice, At normal temperature, OsGRF6 was responsible for maintaining active GA levels by inhibiting OsGA2ox1
- OsGA2ox1, OsGRF6, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice, When rice seedlings were subjected to chilling stress, the repressive effect of OsGRF6 on OsGA2ox1 was released by cold-induced SLR1, which activated OsGA2ox1 expression to decrease the active GA levels, enhancing chilling tolerance
- OsGA2ox1, SLR1~OsGAI~OsSLR1, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice
- OsGA2ox1, SLR1~OsGAI~OsSLR1, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice, The yeast one-hybrid, qRT-PCR, and transactivation assays showed that both SLR1 and OsGRF6 can bind to the promoter of the active GA catabolic gene OsGA2ox1, where SLR1 promoted and OsGRF6 suppressed OsGA2ox1 expression
- OsGA2ox1, SLR1~OsGAI~OsSLR1, OsGRF6 interacts with SLR1 to regulate OsGA2ox1 expression for coordinating chilling tolerance and growth in rice, When rice seedlings were subjected to chilling stress, the repressive effect of OsGRF6 on OsGA2ox1 was released by cold-induced SLR1, which activated OsGA2ox1 expression to decrease the active GA levels, enhancing chilling tolerance
- GA2OX3~OsGA2OX3, OsGA2ox1, Orchestration of ethylene and gibberellin signals determines primary root elongation in rice., Further investigations unraveled that ethylene signaling transcription factor ETHYLENE INSENSITIVE3-LIKE 1 OsEIL1 activates the expression of the GA metabolism genes GIBBERELLIN 2-OXIDASE 2 (OsGA2ox1), OsGA2ox2, OsGA2ox3, and OsGA2ox5, thereby deactivating GA activity, inhibiting cell proliferation in the root meristem, and ultimately gradually inhibiting primary root growth
- OsEIL1~MHZ6, OsGA2ox1, Orchestration of ethylene and gibberellin signals determines primary root elongation in rice., Further investigations unraveled that ethylene signaling transcription factor ETHYLENE INSENSITIVE3-LIKE 1 OsEIL1 activates the expression of the GA metabolism genes GIBBERELLIN 2-OXIDASE 2 (OsGA2ox1), OsGA2ox2, OsGA2ox3, and OsGA2ox5, thereby deactivating GA activity, inhibiting cell proliferation in the root meristem, and ultimately gradually inhibiting primary root growth
- OsGA2ox1, OsGA2ox5, Orchestration of ethylene and gibberellin signals determines primary root elongation in rice., Further investigations unraveled that ethylene signaling transcription factor ETHYLENE INSENSITIVE3-LIKE 1 OsEIL1 activates the expression of the GA metabolism genes GIBBERELLIN 2-OXIDASE 2 (OsGA2ox1), OsGA2ox2, OsGA2ox3, and OsGA2ox5, thereby deactivating GA activity, inhibiting cell proliferation in the root meristem, and ultimately gradually inhibiting primary root growth
- OsGA2ox1, OsGA2ox2, Orchestration of ethylene and gibberellin signals determines primary root elongation in rice., Further investigations unraveled that ethylene signaling transcription factor ETHYLENE INSENSITIVE3-LIKE 1 OsEIL1 activates the expression of the GA metabolism genes GIBBERELLIN 2-OXIDASE 2 (OsGA2ox1), OsGA2ox2, OsGA2ox3, and OsGA2ox5, thereby deactivating GA activity, inhibiting cell proliferation in the root meristem, and ultimately gradually inhibiting primary root growth
- OsGA2ox1, SNG1~OsHXK3, OsHXK3 encodes a hexokinase-like protein that positively regulates grain size in rice., Compared with wild type, OsGA3ox2 was significantly up-regulated and OsGA2ox1 was significantly down-regulated in young panicle of sng1, and concentrations of biologically active GAs were significantly decreased in young panicles of the mutants
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