RICE SCIENCE ›› 2011, Vol. 18 ›› Issue (3): 231-137.

• Review or Special Topic • Previous Articles     Next Articles

Functions of Phytochrome in Rice Growth and Development

  1. 1Department of Bioengineering, Zhengzhou University, Zhengzhou 450001, China; 2High-Tech Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; 3Laboratory of Crop Genetic Improvement and Biotechnology, Huanghuaihai, Ministry of Agriculture, Jinan 250100, China
  • Online:2011-09-28 Published:2011-10-12
  • Contact: XIE Xian-zhi
  • Supported by:

    the grants from the Chinese National Natural Science Foundations (Grant Nos. 30870192 and 30971744), the National Major Science and Technology Project to Create New Crop Varieties Using Gene Transfer Technical (Grant No. 2009ZX08001-029B), and the Open Research Program from the Key Laboratory of Crop Biology, China (Grant No. 2009KF04).

Abstract: Phytochrome family mainly senses red and far-red light to regulate a range of developmental processes throughout the life cycle of plants. Rice phytochrome gene family is composed of three members known as PHYA, PHYB and PHYC. It has been elucidated that individual phytochromes display both unique and overlapping roles in rice photomorphogenesis by characterization of all rice phytochrome mutants including single mutants, all combinations of double mutants as well as triple mutants. Based on the published data and authors’ ongoing studies, current knowledge of rice phytochrome functions in regulating seedling de-etiolation, root gravitropic response and elongation, plant architecture, flowering time and fertility is summarized. Additionally, the important issues in the field of rice phytochromes are proposed.

Key words: rice, phytochrome gene, photomorphogenesis, growth and development, function