EFFECTS OF COPPER AND CADMIUM ON GROWTH, SUPEROXIDE-DISMUTASE AND CATALASE ACTIVITIES IN DIFFERENT YEAST STRAINS

被引:36
|
作者
ROMANDINI, P
TALLANDINI, L
BELTRAMINI, M
SALVATO, B
MANZANO, M
DEBERTOLDI, M
ROCCO, GP
机构
[1] UNIV UDINE, DEPT FOOD SCI TECHNOL & MICROBIOL, I-33100 UDINE, ITALY
[2] CNR, STUDY CTR BIOCHEM & PHYSIOL HEMOCYANIN & OTHER MET, I-35100 PADUA, ITALY
关键词
D O I
10.1016/0742-8413(92)90004-Q
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
1. Three strains of Saccharomyces cerevisiae have been adapted in vitro upon treatment with copper or cadmium. Growth rate, cellular size, metal uptake, superoxide dismutase and catalase activities were measured. 2. Growth rate and metal uptake are quite different among the yeast strains and also for copper and cadmium treatment. At the employed concentrations, only cadmium chiefly affects the cellular volume. 3. Cu, ZnSOD activity is stimulated in the presence of copper, while it is lightly inhibited in the presence of cadmium. Catalase level remains almost unchanged in the conditions tested. This lack of correlation is then discussed.
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页码:255 / 262
页数:8
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