半胱氨酸和亚硒酸钠对金黄色葡萄球菌中镉毒性的影响。
The effect of cysteine and sodium selenite on the toxicity of cadmium in Staphylococcus aureus.
作者信息
Korkeala H, Uusi-Rauva A, Pekkanen T J
出版信息
Acta Vet Scand. 1981;22(1):129-36. doi: 10.1186/BF03547214.
Cysteine was shown to have a protective effect on the killing rate caused by cadmium (Cd) but no effect on the uptake of Cd in S. aureus 3719-. The addition of 254 × 10 mmol/l of sodium selenite or more into the liquid growth medium increased the lag phase of growth of S. aureus 3719-. Sodium selenite had no protective effect on the toxicity of Cd in S. aureus 3719- as evaluated by the length of the lag phase of growth in the presence of Cd and varying amounts of sodium selenite. 534 × 10 mmol/l of sodium selenite in the growth medium had no effect on the uptake of Cd in S. aureus.
结果表明，半胱氨酸对金黄色葡萄球菌3719 -中镉（Cd）引起的杀菌率具有保护作用，但对Cd的摄取没有影响。向液体生长培养基中添加254×10 mmol/l或更多的亚硒酸钠会延长金黄色葡萄球菌3719 -的生长延迟期。通过在存在Cd和不同量亚硒酸钠的情况下生长延迟期的长度评估，亚硒酸钠对金黄色葡萄球菌3719 -中Cd的毒性没有保护作用。生长培养基中534×10 mmol/l的亚硒酸钠对金黄色葡萄球菌中Cd的摄取没有影响。
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