CYP 72 B 1 Inactivates Brassinosteroid Hormones : An Intersection between Photomorphogenesis and Plant Steroid Signal Transduction 1

@inproceedings{Turk2003CYP7B,
  title={CYP 72 B 1 Inactivates Brassinosteroid Hormones : An Intersection between Photomorphogenesis and Plant Steroid Signal Transduction 1},
  author={Edward M. Turk and Shozo Fujioka and Hideharu Seto and Yukihisa Shimada and Suguru Takatsuto and Shigeo Yoshida and Megan A. Denzel and Quetzal I. Torres and Michael M. Neff},
  year={2003}
}
Active brassinosteroids, such as brassinolide (BL) and castasterone, are growth promoting plant hormones. An Arabidopsis cytochrome P450 monooxygenase encoded by CYP72B1 has been implicated in brassinosteroid catabolism as well as photomorphogenesis. We expressed CYP72B1 in yeast, coupled with brassinosteroid feeding, and established the biochemical function to be the hydroxylation of BL and castasterone, to give 26-hydroxybrassinolide and 26-hydroxycastasterone, respectively. Brassinosteroid… CONTINUE READING

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