Characterization of OsPID, the rice [Oryza sativa] ortholog of PINOID, and its possible involvement in the control of polar auxin transport

PINOID, a serine threonine protein kinase in Arabidopsis, controls auxin distribution through a positive control of subcellular localization of PIN auxin efflux carriers. Compared with the rapid progress in understanding mechanisms of auxin action in dicot species, little is known about auxin action...

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Bibliographic Details
Published in:Plant and cell physiology 2007-03, Vol.48 (3), p.540-549
Main Authors: Morita, Y.(Tokyo Univ. (Japan)), Kyozuka, J
Format: Article
Language:English
Subjects:
ADVENTITIOUS ROOTS
Arabidopsis - enzymology
Arabidopsis - genetics
Arabidopsis Proteins - genetics
AUXINAS
AUXINE
AUXINS
Biological Transport, Active
FILOGENIA
Flowers - growth & development
Gene Expression
Genes, Plant
GENOMAS
GENOME
GENOMES
Indoleacetic Acids - metabolism
ORGANOGENESE
ORGANOGENESIS
Oryza - genetics
Oryza - growth & development
Oryza - metabolism
ORYZA SATIVA
PHYLOGENIE
PHYLOGENY
Plant Growth Regulators - metabolism
Plants, Genetically Modified
PROTEIN KINASE
Protein-Serine-Threonine Kinases - genetics
Protein-Serine-Threonine Kinases - metabolism
PROTEINA QUINASA
PROTEINE KINASE
RACINE ADVENTIVE
RAICES ADVENTICIAS
RNA, Messenger - genetics
RNA, Messenger - metabolism
RNA, Plant - genetics
RNA, Plant - metabolism
Species Specificity
Tissue Distribution
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Summary:PINOID, a serine threonine protein kinase in Arabidopsis, controls auxin distribution through a positive control of subcellular localization of PIN auxin efflux carriers. Compared with the rapid progress in understanding mechanisms of auxin action in dicot species, little is known about auxin action in monocot species. Here, we describe the identification and characterization of OsPID, the PINOID ortholog of rice. Phylogenetic analysis showed that the rice genome contains a single PID ortholog, OsPID. Constitutive overexpression of OsPID caused a variety of abnormalities, such as delay of adventitious root development, curled growth of shoots and agravitropism. Abnormalities observed in the plants that overexpress OsPID could be phenocopied by treatment with an inhibitor of active polar transport of auxin, indicating that OsPID could be involved in the control of polar auxin transport in rice. Analysis of OsPID mRNA distribution showed a complex pattern in shoot meristems, indicating that it probably plays a role in the pattern formation and organogenesis in the rice shoot.
ISSN:0032-0781
1471-9053
DOI:10.1093/pcp/pcm024