臺灣博碩士論文加值系統

銅處理大豆 ( Glycine max ) 根部組織會抑制根的生長，增加過氧化酶活性與組織內過氧化氫含量，推測銅引發過氧化酶活性的增加可能加強根部組織清除由銅引起之過氧化物的能力。另外，陽性過氧化酶（pI 8.9, pI 8.3, pI 7.7）及陰性過氧化酶（pI 6.5, pI 5.6, pI 4.4）的活性及木質素含量均有增加，所以推測銅誘導大豆根部組織內陽性及陰性過氧化酶催化木質素的合成。

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.

TABLE OF CONTENTS
Chinese abstract ------------------------------------ I
English abstract ------------------------------------ II
Table of contents ---------------------------------- III
List of tables and figures ------------------------- IV
Introduction ---------------------------------------- 1
Materials and Methods --------------------------- 4
Results ---------------------------------------------- 10
Discussion ------------------------------------------ 14
Reference ------------------------------------------- 17
Figures ---------------------------------------------- 20

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