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Gene Review: 

CYP707A2  -  abscisic acid 8'-hydroxylase 2

Arabidopsis thaliana

Synonyms: T9I4.17, T9I4_17, cytochrome P450, family 707, polypeptide 2, ...
 
 
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High impact information on CYP707A2

  • Expression analyses revealed that CYP707A2 is responsible for the rapid decrease in ABA level during seed imbibition [1].
  • CYP707A1 and CYP707A2, which encode abscisic acid 8'-hydroxylases, are indispensable for proper control of seed dormancy and germination in Arabidopsis [2].
  • On the other hand, CYP707A2 is responsible for the regulation of ABA levels from late-maturation to germination [2].
  • Expression of an ABA biosynthesis gene, AtNCED6, and the inactivation gene, CYP707A2, was regulated in a photoreversible manner, suggesting a key role for the genes in PHYB-mediated regulation of ABA metabolism [3].

References

  1. The Arabidopsis cytochrome P450 CYP707A encodes ABA 8'-hydroxylases: key enzymes in ABA catabolism. Kushiro, T., Okamoto, M., Nakabayashi, K., Yamagishi, K., Kitamura, S., Asami, T., Hirai, N., Koshiba, T., Kamiya, Y., Nambara, E. EMBO J. (2004) [Pubmed]
  2. CYP707A1 and CYP707A2, which encode abscisic acid 8'-hydroxylases, are indispensable for proper control of seed dormancy and germination in Arabidopsis. Okamoto, M., Kuwahara, A., Seo, M., Kushiro, T., Asami, T., Hirai, N., Kamiya, Y., Koshiba, T., Nambara, E. Plant Physiol. (2006) [Pubmed]
  3. Regulation of hormone metabolism in Arabidopsis seeds: phytochrome regulation of abscisic acid metabolism and abscisic acid regulation of gibberellin metabolism. Seo, M., Hanada, A., Kuwahara, A., Endo, A., Okamoto, M., Yamauchi, Y., North, H., Marion-Poll, A., Sun, T.P., Koshiba, T., Kamiya, Y., Yamaguchi, S., Nambara, E. Plant J. (2006) [Pubmed]
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