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研究生:陳冠宏
研究生(外文):Malcolm Chen
論文名稱:鎘對稻米的過氧化酶活性之影響
論文名稱(外文):Effect of Cadmium on Peroxidase Activity in Rice
指導教授:劉景煌劉景煌引用關係
指導教授(外文):Zin-Huang Liu
學位類別:碩士
校院名稱:國立中山大學
系所名稱:生物科學系研究所
學門:生命科學學門
學類:生物學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:英文
論文頁數:29
中文關鍵詞:木質素過氧化氫水稻過氧化酶
外文關鍵詞:ligninperoxidasehydrogen peroxideOryza sativaCadmium
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鎘處理水稻 (Oryza sativa cv. Tainung 67 and Taichung native 1) 幼苗都會有明顯抑制根部的生長,在48小時鎘處理中,台中在來一號根部生長抑制較台農67號為嚴重。耐鎘品系--台農67號其根部受鎘處理後生成較多之過氧化酶,同時合成較多之木質素,而且將過氧化氫分解。而台中在來一號品系受鎘處理後,其生成的木質素較少,而且有較多的過氧化氫之累積,因此推論台中再來一號對於鎘的耐受性較差。
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.
Chinese abstract --------------------------------------------------------I
English abstract -------------------------------------------------------II
Table of contents -----------------------------------------------------III
List of figures ---------------------------------------------------------IV
Introduction ------------------------------------------------------------1
Materials and methods ------------------------------------------------5
Results ------------------------------------------------------------------9
Discussion -------------------------------------------------------------12
Reference --------------------------------------------------------------14
Figures -----------------------------------------------------------------19
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