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Effect of cadmium on growth and morphology in different Curvularia Lunata variaties
|Publication Year :||1998|
|Abstract:||尋找有效且經濟的方法清除環境污染一直是科學家努力的目標。利用真菌分佈廣泛，繁殖迅速的特性，篩選其中抗鎘的品種就成了一種可行的生物救濟法（bioremediation）。本實驗比較Curvularia lunata KYC 9604以及自菌種中心所購得兩株不同品系的菌株，在不同鎘濃度（0ppm，100ppm，500ppm，1000ppm）處理下，由其菌落半徑及菌絲乾重變化情形，觀察品系間抗鎘性狀及反應的不同。|
Scientists are always involved in removing heavy metal pollution from environment in effective and ecnomic methods. Using the wide distrubition and fast regenerating characteristics of fungi, screening cadmium resistant strains is a feasible bioremediation. In this study Curvularia lunata KYC 9604 and two different strains bought from culture center were investigated. The different in the cadmium resistant trait and response among these strains was studied from their alternation in colony radius and dry weight for different cadmium concentration (0 ppm, 100 ppm, 500 ppm and 1000 ppm).
KYC 9604 has better cadmium resistance, and fast cadmium adsorbent ability than the other two strains. After 15 mins in 100 ppm cadmium treatment, cadmium uptake by myclium was up to 64 ppm. Oil drops and vacuoles were increase after cadmium traet, and the melanins outside the cell wall were disapper. Exocytosis occured when vacuoles were move toward the cell wall. Cadmium content in different smaples were detected by EDS. Compare these sample drying methods, the result using freeze drying was the best. After all, we use SDS-PAGE to view the protein patterns alter, some protein patterns were also altered by the duration of cadmium treatment.
|Appears in Collections:||植物科學研究所|
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