- Information
- Symbol: OsIAA11
- MSU: LOC_Os03g43400
- RAPdb: Os03g0633500
- Publication
- A gain-of-function mutation in OsIAA11 affects lateral root development in rice, 2012, Mol Plant.
- Rice Inositol Polyphosphate Kinase OsIPK2 Directly Interacts with OsIAA11 to Regulate Lateral Root Formation., 2017, Plant Cell Physiol.
- Callus initiation from root explants employs different strategies in rice and Arabidopsis., 2018, Plant Cell Physiol.
- Tuning a timing device that regulates lateral root development in rice., 2019, J Biomol NMR.
- Functional analysis of auxin receptor OsTIR1/OsAFB family members in rice grain yield, tillering, plant height, root system, germination, and auxinic herbicide resistance, 2020, New Phytol.
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Genbank accession number
- Key message
- Here, a member of the rice Aux/IAA family genes, OsIAA11 (LOC_Os03g43400), was isolated from a rice mutant defective in lateral root development
- The gain-of-function mutation in OsIAA11 strictly blocks the initiation of lateral root primordia, but it does not affect crown root development
- The expression of OsIAA11 is defined in root tips, lateral root caps, steles, and lateral root primordia
- Taken together, the results indicate that the gain-of-function mutation in OsIAA11 caused the inhibition of lateral root development in rice
- A gain-of-function mutation in OsIAA11 affects lateral root development in rice
- The auxin reporter DR5-GUS (beta-glucuronidase) was expressed at lower levels in the mutant than in wild-type, indicating that OsIAA11 is involved in auxin signaling in root caps
- The transcript abundance of both OsPIN1b and OsPIN10a was diminished in root tips of the Osiaa11 mutant
- Rice Inositol Polyphosphate Kinase (OsIPK2) Directly Interacts with OsIAA11 to Regulate Lateral Root Formation.
- Furthermore, expressing additional OsIPK2 or its N-terminal amino acid sequence enhanced the accumulation of OsIAA11 protein in transgenic plants, which in turn caused defects in lateral root formation and auxin response
- OsIAA11 and its Arabidopsis homologue AtIAA14 are key players in lateral rooting
- By contrast, OsIAA11 is strictly required for lateral rooting in the rice PR, meaning the OsIAA11 pathway is the only choice for callus initiation
- OsIAA11 controls transcription of specific genes, including its own, that are required for lateral root development
- Connection
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Peptidyl-prolyl isomerization targets rice Aux/IAAs for proteasomal degradation during auxin signalling., Here we show that peptidyl-prolyl isomerization of rice OsIAA11 catalysed by LATERAL ROOTLESS2 (LRT2), a cyclophilin-type peptidyl-prolyl cis/trans isomerase, directly regulates the stability of OsIAA11
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Peptidyl-prolyl isomerization targets rice Aux/IAAs for proteasomal degradation during auxin signalling., NMR spectroscopy reveals that LRT2 efficiently catalyses the cis/trans isomerization of OsIAA11
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Peptidyl-prolyl isomerization targets rice Aux/IAAs for proteasomal degradation during auxin signalling., The lrt2 mutation reduces OsTIR1-OsIAA11 interaction and consequently causes the accumulation of a higher level of OsIAA11 protein
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Peptidyl-prolyl isomerization targets rice Aux/IAAs for proteasomal degradation during auxin signalling., Moreover, knockdown of the OsIAA11 expression partially rescues the lrt2 mutant phenotype in lateral root development
- OsIAA11, OsIPK2~IPK2~IP6K~ES2, Rice Inositol Polyphosphate Kinase OsIPK2 Directly Interacts with OsIAA11 to Regulate Lateral Root Formation., Rice Inositol Polyphosphate Kinase (OsIPK2) Directly Interacts with OsIAA11 to Regulate Lateral Root Formation.
- OsIAA11, OsIPK2~IPK2~IP6K~ES2, Rice Inositol Polyphosphate Kinase OsIPK2 Directly Interacts with OsIAA11 to Regulate Lateral Root Formation., Here, we show that OsIPK2, a rice (Oryza sativa) inositol polyphosphate kinase, directly interacts with an Aux/IAA protein OsIAA11 to repress its degradation
- OsIAA11, OsIPK2~IPK2~IP6K~ES2, Rice Inositol Polyphosphate Kinase OsIPK2 Directly Interacts with OsIAA11 to Regulate Lateral Root Formation., Furthermore, expressing additional OsIPK2 or its N-terminal amino acid sequence enhanced the accumulation of OsIAA11 protein in transgenic plants, which in turn caused defects in lateral root formation and auxin response
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Quantification of reaction cycle parameters for an essential molecular switch in an auxin-responsive transcription circuit in rice., In rice, a tryptophan-proline (W-P) cis-trans switch in transcription repressor protein OsIAA11 along with its associated cyclophilin LRT2 are essential components in a negative feedback gene regulation circuit that controls lateral root initiation in response to the plant hormone auxin
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Quantification of reaction cycle parameters for an essential molecular switch in an auxin-responsive transcription circuit in rice., Here we present NMR studies that determine and independently validate these parameters for LRT2 catalysis of the W-P motif in OsIAA11, providing predictive power for understanding the role of this switch in the auxin-responsive circuit and the resulting lateral rootless phenotype in rice
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Quantification of reaction cycle parameters for an essential molecular switch in an auxin-responsive transcription circuit in rice., We show that the observed isomerization rate is linearly dependent on LRT2 concentration but is independent of OsIAA11 concentration over a wide range, and LRT2 is optimally tuned to maintain OsIAA11 at its cis-trans equilibrium to supply the slower downstream cis-specific proteasomal degradation with maximal OsIAA11 substrate
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Tuning a timing device that regulates lateral root development in rice., LRT2 displays in vitro isomerization of a highly conserved W-P peptide bond (104W-P105) in the natural substrate OsIAA11
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Tuning a timing device that regulates lateral root development in rice., We present characterization of the thermal stability and isomerization rates of several LRT2 mutants acting on the OsIAA11 substrate
- OsCYP2~OsCyp2-P~LRT2, OsIAA11, Tuning a timing device that regulates lateral root development in rice., coli were shown to have 110, 50 and 60% of WT LRT2 activity on the OsIAA11 substrate
- OsIAA1, OsIAA11, Functional analysis of auxin receptor OsTIR1/OsAFB family members in rice grain yield, tillering, plant height, root system, germination, and auxinic herbicide resistance, All five OsTIR1/AFB members interacted with OsIAA1 and OsIAA11 proteins in vivo
- OsCRL1, OsIAA11, Initiation of scutellum-derived callus is regulated by an embryo-like developmental pathway in rice., In addition, OsIAA11 and OsCRL1, which are involved in root development, are required for vasculature-derived callus formation but not for scutellum-derived callus formation
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