| URN |
etd-0114108-121227 |
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| Author |
Yi-hsuan Wang |
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| Author's Email Address |
No Public. |
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| Statistics |
This thesis had been viewed 4741 times. Download 576 times. |
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| Department |
Biological Sciences |
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| Year |
2007 |
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| Semester |
1 |
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| Degree |
Master |
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| Type of Document |
|
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| Language |
English |
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| Title |
Effect of aluminum on peroxidase isozyme in two rice cultivars |
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| Date of Defense |
2008-01-12 |
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| Page Count |
41 |
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| Keyword |
aluminum
hydrogen peroxide
lignin
Oryza sativa
peroxidase
|
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| 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. |
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| Advisory Committee |
Hsu, Ching-Mei - chair
Mang-Jye Ger - co-chair
Liu, Zin-Huang - advisor
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| Files |
indicate in-campus access immediately and off_campus access in a year |
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| Date of Submission |
2008-01-14 |
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