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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (21): 159-163.doi: 10.11924/j.issn.1000-6850.2011-3583

所属专题： 生物技术

• 生物技术科学 • 上一篇    下一篇

高等植物黄嘌呤脱氢酶的研究进展

吴自明 韩瑞才 陈慧珍 谭雪明 石庆华 潘晓华   

  • 收稿日期:2011-12-01 修回日期:2012-01-16 出版日期:2012-07-25 发布日期:2012-07-25
  • 基金资助:

    逆境胁迫黄嘌呤脱氢酶表达及其延缓衰老的作用机制

Advances of Studies on Xanthine Dehydrogenase in Higher Plants

  • Received:2011-12-01 Revised:2012-01-16 Online:2012-07-25 Published:2012-07-25

PDF (PC)

1126

摘要：

黄嘌呤脱氢酶(xanthine dehydrogenase, XDH)是钼酶家族成员之一，在嘌呤代谢过程中起重要作用，催化黄嘌呤和次黄嘌呤生成酰脲类物质，且与氮同化、激素代谢、活性氧产生等过程有关。因此对高等植物XDH的结构特征、生物学功能及最新研究进展等方面进行了综述，并展望了XDH在延缓叶片衰老方面的应用价值。

关键词: 毒性研究, 毒性研究

Abstract:

Xanthine dehydrogenase (XDH), as a member of the molybdenum enzymes, plays an important role in purine metabolism, catabolizes xanthine and hypoxanthine to ureides, and involved in nitrogen assimilation, hormone homeostasis, reactive oxygen species production. In this paper, the latest knowledge on structure, biological function and recent advances of xanthine dehydrogenase in higher plants were reviewed. In addition, the value of delaying leaf senescence by xanthine dehydrogenase in practice was also discussed.