臺灣博碩士論文加值系統

二氧化硫（sulfur dioxide）為一種有毒的刺激性無色氣體，比空氣重約2.21倍，論台灣地區對林木危害相當嚴重的一種氣態污染物之一，其對於林木之危害部位主為葉部。
本試驗乃研究樟樹(Cinnamomum camphora)及木麻黃(Casuarina equiserifolia)二氧化硫濃度處理後，檢測葉片之油脂量、全糖量、還原糖量、以及游離氨基酸量的變化，同時也檢測植物中有關醣代謝的兩種重要酵素，phosporylase及transketolase，在經二氧化硫處理後其活性的變化。
所有的試驗結果如下：
1.經處理之樟樹、木麻黃平均每克葉所含之油脂量較對照組為低，但在0.5ppm下沒有顯著差異；在1ppm下具有極顯著之差異。
2.經處理之樟樹、木麻黃平均每克葉所含之全糖量及還原糖量均較對照組為低，在0.5ppm及1ppm下均具有極顯著之差異。
3.經處理之樟樹平均每克葉所含之游離胺基酸量較對照組為高，在0.5ppm及1ppm下均具有極顯著之差異。而經處理之木麻黃平均每克葉所含之游離胺基酸量較對照組為低，但在0.S5ppm沒有顯著差異；在1ppm下具有5％顯著差異。
4.樟樹及木麻黃在0.5ppm及1ppm下均無法測得其磷酸化酵素之活性。
5.經處理之樟樹、木麻黃之轉酮酵素活性下降，而1ppm下之活性低於0.5ppm下之活性。

Sulfur dioxide is a poisonous , stimulant, and colorless gas, and it is about 2.21 times as heavy as air. It is one of the gases that do extremely serious pollution and harm to trees. The main parts to which sulfur dioxide make harm are leaves.
After keep the concentration of sulfur dioxide at O.5ppm for one week and 1ppm for one week in two sealed boxes, each of one-year-old Cinnamomum camphora and Casuarina eauisetifolia are seperately put in, the changes on the amount of fats, of total Sugars, of reducing sugars, and of α-amino acids of leaf blades are clearly showed. Meanwhile, through this experiment, the change, under the influence of sulfur dioxide, on the activation of the two enzymes, which are phosphorylase and transketolase and related to the metabolism of saccharides of plants, is examined and tested.
All of the results of this experiment as follows:
I. the amount of fats of per gram leaf:
After Cinnamomum camphora and Casurina equisetifolia are treated, the amount of fats of each of then is less than the controls. There are no significant variances when they are under 0.5 ppm; however, the variances are significant when they are under 1 ppm.
Ⅱ. the amount of total sugars and reducing sugars of per gram leaf:
After Cinnamomum camphora and Casuarina equisetifolia are treated, the amount of total sugars and of reducing sugars of each of them is less than the controls. The variances are significant when they are under 0.5ppm or under 1 ppm.
Ⅲ. the aaount of α-amino acid per gram leaf:
After they are treated, the average amount of α-aminoacid of Cinnamomum camphora is more than the control. The variances under 0.5 ppm or under 1ppm are significant. However, the average amount of α-amino acid of Casuarina eguisetifolia is less than the control. There is no significant variance under 0.5 ppm; however, there is 5% variance when it is under 1 ppm.
Ⅳ. phosporylase
Under 0.5 ppm or under 1 ppm, the activation of phosporylase of Cinnamomum camphora and Casuarina equisetifolia fail to be examined and tested.