Article
The auxin responsive AP2/ERF transcription factor CROWN ROOTLESS5 is involved in crown root initiation in rice through the induction of OsRR1, a type-A response regulator of cytokinin signaling.
The Plant journal : for cell and molecular biology - 1 Aug 2011
Kitomi Yuka, Ito Hiroko, Hobo Tokunori, Aya Koichiro, Kitano Hidemi, Inukai Yoshiaki
Abstract excerpt
Cytokinin is known to have negative effects on de novo auxin-induced root formation. However, the regulatory mechanisms of root initiation by both cytokinin and auxin are poorly understood. In this study, we characterized a rice mutant, termed crown rootless5 (crl5), which produced fewer crown roots and displayed impaired initiation of crown root primordia. The expression of CRL5, which encodes a member of the...
Topics
- Amino Acid Sequence
- Chromosome Mapping
- Cloning, Molecular
- Cytokinins
- Gene Expression Regulation, Plant
- Genes, Plant
- Genetic Complementation Test
- Indoleacetic Acids
- Molecular Sequence Data