Title page for etd-0704102-113512


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URN etd-0704102-113512
Author Chih-Cheng Lin
Author's Email Address No Public.
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Department Biological Sciences
Year 2001
Semester 2
Degree Master
Type of Document
Language English
Title Effect of copper on peroxidase isozyme activity and lignin synthesis in soybean roots
Date of Defense 2002-04-25
Page Count 31
Keyword
  • copper
  • lignification
  • H2O2
  • Glycine max
  • peroxidase
  • Abstract Copper-treated soybean ( Glycine max ) seedling shows significant inhibition in soybean root growth, and enhancement in POD activity. Cu is an efficient catalyst in the formation of several reactive oxygen species and free radical. The increase in POD activity induced by Cu might remove excess hydrogen peroxide serving a detoxifying role during Cu-treatment. The increase of cationic ( pI 8.9, pI 8.3 and pI 7.7 ) PODs and anionic ( pI 6.5, pI 5.6 and pI 4.4 ) PODs activities is accompanied by a rise of lignin contents in Cu-treated tissues. We suggest that the increase in cationic ( pI 8.9, pI 8.3 and pI 7.7 ) and anionic ( pI 6.5, pI 5.6 and pI 4.4 ) PODs induced by Cu is responsible for lignin synthesis in soybean roots during Cu treatment.
    Advisory Committee
  • Teng-Yung Feng - chair
  • Ching-Mei Hsu - co-chair
  • Zin-Huang Liu - advisor
  • Files
  • etd-0704102-113512.pdf
  • indicate in-campus access only
    Date of Submission 2002-07-04

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