Article
Cytokinin is required for escape but not release from auxin mediated apical dominance.
The Plant journal : for cell and molecular biology - 1 Jun 2015
Müller Dörte, Waldie Tanya, Miyawaki Kaori, To Jennifer P C, Melnyk Charles W, Kieber Joseph J, Kakimoto Tatsuo, Leyser Ottoline
Abstract excerpt
Auxin produced by an active primary shoot apex is transported down the main stem and inhibits the growth of the axillary buds below it, contributing to apical dominance. Here we use Arabidopsis thaliana cytokinin (CK) biosynthetic and signalling mutants to probe the role of CK in this process. It is well established that bud outgrowth is promoted by CK, and that CK synthesis is inhibited by auxin, leading to the...
Topics
- Alkyl and Aryl Transferases
- Arabidopsis
- Arabidopsis Proteins
- Cytokinins
- Gene Expression Regulation, Plant
- Indoleacetic Acids
- Multigene Family
- Mutation
- Nitrates
- Plant Shoots
- Transcription Factors