Arabidopsis response regulators ARR3 and ARR4 play cytokinin-independent roles in the control of circadian period.

  title={Arabidopsis response regulators ARR3 and ARR4 play cytokinin-independent roles in the control of circadian period.},
  author={Patrice A Salom{\'e} and Jennifer P. C. To and Joseph J Kieber and C. Robertson McClung},
  journal={The Plant cell},
  volume={18 1},
Light and temperature are potent environmental signals used to synchronize the circadian oscillator with external time and photoperiod. Phytochrome and cryptochrome photoreceptors integrate light quantity and quality to modulate the pace and phase of the clock. PHYTOCHROME B (phyB) controls period length in red light as well as the phase of the clock in white light. phyB interacts with ARABIDOPSIS RESPONSE REGULATOR4 (ARR4) in a light-dependent manner. Accordingly, we tested ARR4 and other… CONTINUE READING


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