Structure and function of cytokinin oxidase/dehydrogenase genes of maize, rice, Arabidopsis and other species
Top Cited Papers
- 29 April 2003
- journal article
- review article
- Published by Springer Nature in Journal of Plant Research
- Vol. 116 (3) , 241-252
- https://doi.org/10.1007/s10265-003-0096-4
Abstract
Cytokinin oxidases/dehydrogenases (CKX) catalyze the irreversible degradation of the cytokinins isopentenyladenine, zeatin, and their ribosides in a single enzymatic step by oxidative side chain cleavage. To date the sequences of 17 fully annotated CKX genes are known, including two prokaryotic genes. The CKX gene families of Arabidopsis thaliana and rice comprise seven and at least ten members, respectively. The main features of CKX genes and proteins are summarized in this review. Individual proteins differ in their catalytic properties, their subcellular localization and their expression domains. The evolutionary development of cytokinin-catabolizing gene families and the individual properties of their members indicate an important role for the fine-tuned control of catabolism to assure proper regulation of cytokinin functions. The use of CKX genes as a tool in studies of cytokinin biology and biotechnological applications is discussed.Keywords
This publication has 83 references indexed in Scilit:
- Two-component circuitry in Arabidopsis cytokinin signal transductionNature, 2001
- The response regulator ARR2: a pollen-specific transcription factor involved in the expression of nuclear genes for components of mitochondrial Complex I in ArabidopsisMolecular Genetics and Genomics, 2001
- Predicting Subcellular Localization of Proteins Based on their N-terminal Amino Acid SequenceJournal of Molecular Biology, 2000
- Two-Component Signal TransductionAnnual Review of Biochemistry, 2000
- Isolation of a Gene Encoding a Glycosylated Cytokinin Oxidase from MaizeBiochemical and Biophysical Research Communications, 1999
- Cytokinin metabolites and gradients in wild type and transgenic tobacco with moderate cytokinin over‐productionPhysiologia Plantarum, 1996
- Levels of endogenous cytokinins, indole‐3‐acetic acid and abscisic acid during the cell cycle of synchronized tobacco BY‐2 cellsFEBS Letters, 1996
- CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choiceNucleic Acids Research, 1994
- Cytokinin oxidase activity in the cellular slime mold, Dictyostelium discoideumDevelopmental Biology, 1989
- Extraction of cytokinins from maize, smut tumors of maize and Ustilago maydis culturesPhysiological Plant Pathology, 1978