Title page for etd-0114108-121227


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URN etd-0114108-121227
Author Yi-hsuan Wang
Author's Email Address No Public.
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Department Biological Sciences
Year 2007
Semester 1
Degree Master
Type of Document
Language English
Title Effect of aluminum on peroxidase isozyme in two rice cultivars
Date of Defense 2008-01-12
Page Count 41
Keyword
  • aluminum
  • hydrogen peroxide
  • lignin
  • Oryza sativa
  • peroxidase
  • Abstract Aluminum-treated rice seeding (Oryza sativa L. cv. Taichung Native 1 and O. sativa L. cv. Tainung 67) showed significant inhibition in rice root growth, and an enhancement of POX activity. In Tainung 67 cultivar rice synthesizes more lignin in Al-treated tissue. Meanwhile, the decrease of H2O2 levels is accompanied with the enhancement of POX activity in Al-treated tissue. The increase in POX activity induced by Al might remove excess hydrogen peroxide serving a detoxifying role and synthesizing more lignin for protection. In Taichung native 1 cultivar, high amounts of H2O2 accumulated in Al-treated tissues could be due to the less amounts of POX induced by Al. In response to Al treatment, the Taichung native 1 cultivar synthesizes less lignin in comparison with that of Tainung 67, and is more Al-less tolerant. Therefore, the Tainung 67 cultivar is more tolerant to Al than Taichung native 1.
    Advisory Committee
  • Hsu, Ching-Mei - chair
  • Mang-Jye Ger - co-chair
  • Liu, Zin-Huang - advisor
  • Files
  • etd-0114108-121227.pdf
  • indicate in-campus access immediately and off_campus access in a year
    Date of Submission 2008-01-14

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