| URN |
etd-0528104-133744 |
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| Author |
Malcolm Chen |
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| Author's Email Address |
No Public. |
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| Statistics |
This thesis had been viewed 4790 times. Download 1166 times. |
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| Department |
Biological Sciences |
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| Year |
2003 |
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| Semester |
2 |
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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 Cadmium on Peroxidase Activity in Rice |
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| Date of Defense |
2004-05-21 |
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| Page Count |
29 |
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| Keyword |
lignin
peroxidase
hydrogen peroxide
Oryza sativa
Cadmium
|
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| Abstract |
Cd significantly inhibited the growth of both rice cultivars. The Tainung 67 cultivar is more tolerant to Cd than Taichung 1 cultivar after 48 h incubation in CdCl2 solution. The Cd tolerant cultivar—Tainung 67’s PODs in roots might synthesize more lignin in Cd-treatments. Meanwhile, the decrease of H2O2 levels is accompanied with the enhancement of POD activity in Cd-treated tissues. PODs here might also remove excess H2O2, thus serving detoxifying role and synthesizing more lignin for protection. In Taichung 1 cultivar, the accumulation of H2O2 in Cd-treated tissues could be due to the less amount of POD enhancement induced by Cd. In response to Cd treatment, the Taichung 1 cultivar also synthesizes little lignin, and therefore is Cd-sensitive. |
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| Advisory Committee |
Ching-Mei Hsu - chair
Hao-Jen Huang - co-chair
Zin-Huang Liu - advisor
|
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| Files |
indicate access worldwide |
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| Date of Submission |
2004-05-28 |
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