The plant hormone cytokinin is required for the activity of the shoot meristem, which is responsible for all the aerial organs. Fine-tuning of cytokinin activity by a novel cytokinin-activating enzyme is crucial for the control of the meristem activity. The enzyme, encoded by the LOG gene, catalyses the final step of bioactive cytokinin synthesis by its cytokinin-specific phosphoribohydrolase activity.
- Takashi Kurakawa
- Nanae Ueda
- Junko Kyozuka
