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Integration of Cold Signal Transduction Pathway Related to ABA 8'-hydroxylase in Arabidopsis

  • Xin Zhou
  • Fei He
  • Fengxia Liu
  • Xue Zheng
  • Chao Di
  • Shaoxia Zhou
  • Hongya Gu
  • Wenying Xu
  • Zhen Su

Abscisic acid (ABA) is one of plant hormones, playing essential roles in developmental regulation and stress signal transduction pathways, such as seed dormancy, seed germination, and environmental stress responses, etc. In recent years, the ABA 8’-hydroxylase was considered to play key role for ABA degradation. Arabidopsis P450 CYP707A subfamily genes were identified by reverse genetic approach to encode ABA 8’-hydroxylases (Kushiro et al., 2004; Saito et al., 2004). CYP707A subfamily includes four members in Arabidopsis, named CYP707A1 (At4g19230), CYP707A2 (At2g29090), CYP707A3 (At5g45340), and CYP707A4 (At3g19270). CYP707A genes were up-regulated by ABA, salinity, drought and osmotic stresses (Saito et al., 2004). However, there are no reports available about the interaction between CYP707A transcripts and cold stress.

Keywords

Abscisic Acid Cold Stress CYP707A Gene Reverse Genetic Approach Environmental Stress Response 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Krochko JE, Abrams, GD, Loewen MK, Abrams SR, Cutler AJ (1998) A(+)-abscisic acid 8'-hydroxylase is a cytochrome P450 monooxygenase. Plant Physiol 118: 849-860.CrossRefPubMedGoogle Scholar
  2. Kushiro T, Okamoto M, Nakabayashi K, Yamagishi K, Kitamura S, Asami T, Hirai N, Koshiba T, Kamiya Y, Nambara E (2004) The Arabidopsis cyto-chrome P450 CYP707A encodes ABA 8’-hydroxylases: key enzymes in ABA catabolism. EMBO J 23: 1647-1656.CrossRefPubMedGoogle Scholar
  3. Lee B, Henderson DA, Zhu JK (2005) The Arabidopsis cold-responsive transcrip-tome and its regulation by ICE1. Plant Cell 17: 3155-3175.CrossRefPubMedGoogle Scholar
  4. Saito S, Hirai N, Matsumoto C, Ohigashi H, Ohta D, Sakata K, Mizutani M (2004) Arabidopsis CYP707As encode (+)-abscisic acid 8’-hydroxylase, a key enzyme in the oxidative catabolism of abscisic acid. Plant Physiol 134: 1439-1449.CrossRefPubMedGoogle Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  • Xin Zhou
    • 1
  • Fei He
    • 2
  • Fengxia Liu
    • 1
  • Xue Zheng
    • 1
  • Chao Di
    • 1
  • Shaoxia Zhou
    • 1
  • Hongya Gu
    • 2
  • Wenying Xu
    • 3
  • Zhen Su
    • 1
  1. 1.State Key Laboratory of Plant Physiology and BiotechnologyChina Agricultural UniversityChina
  2. 2.College of Biological SciencesPeking UniversityChina
  3. 3.Institute of Genetics and Developmental BiologyChinese Academy of SciencesChina

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