Title page for etd-0602100-143359


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URN etd-0602100-143359
Author Tsai-Chi Li
Author's Email Address m8725615@student.nsysu.edu.tw
Statistics This thesis had been viewed 4710 times. Download 2248 times.
Department Biological Sciences
Year 1999
Semester 2
Degree Master
Type of Document
Language English
Title Effect of Copper on Peroxidase Activity in Peanut Root
Date of Defense 2000-05-25
Page Count 26
Keyword
  • lignification
  • indole-3-acetic acid
  • Arachis hypogaea
  • copper
  • peroxidase.
  • Abstract   Cu-treated peanut seedlings not only showed a significant inhibition in peanut root growth, but also a decrease in endogenous indole-3-acetic acid (IAA) contents . The decline of IAA content in Cu-treated tissues is accompanied by an increase in cationic peroxidase activity. In addition, the increase in cationic peroxidase (pI 8.5) activity is correlated with an increase in cationic peroxidase transcripts. Cu might suppress the growth of peanut roots by inducing the synthesis of the cationic peroxidase isozyme that degrades endogenous IAA, causing the retardation of peanut root growth. The increase in activity of anionic peroxidases (pI 3.5) is also correlated with the rise in lignin content in Cu-treated roots. We suggest that the increase in anionic peroxidases (pI 3.5) induced by Cu might be responsible for lignin synthesis in peanut roots, and remove excess hydrogen peroxide, thus serving a detoxifying role during Cu treatment.   
    Advisory Committee
  • - co-chair
  • Teng-Yung Feng - co-chair
  • - advisor
  • Files
  • 論文頭.pdf
  • 論文title.pdf
  • 論文.pdf
  • indicate access worldwide
    Date of Submission 2000-06-02

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