浮游球衣菌在含铅培养基中的生长速率及钙离子的影响
Growth rate of the bacterium Sphaerotilus natans in lead-containing medium and the effect of calcium ions.
作者信息
Medoń P, Tlatlik-Nowak U, Sidorowicz A
出版信息
Environ Res. 1984 Oct;35(1):228-36. doi: 10.1016/0013-9351(84)90131-2.
Growth rate of bacteria Sphaerotilus natans in lead-containing medium (1 X 10(-4) M Pb2+) and bioaccumulation of lead in the bacterial cells were investigated together with the effect of calcium ions on these processes. A rapid increase in biomass was observed in the presence of calcium and lead whereas calcium alone had no visible effect on the bacterial growth. The increase in biomass in the presence of lead and calcium was accompanied by a pronounced drop in lead content in the bacterial cells. This suggests that calcium ions protect the bacterial cells against lead poisoning.
研究了含铅培养基（1×10⁻⁴ M Pb²⁺）中浮游球衣菌的生长速率、细菌细胞中铅的生物积累以及钙离子对这些过程的影响。在有钙和铅存在的情况下，观察到生物量迅速增加，而单独的钙对细菌生长没有明显影响。在有铅和钙存在的情况下生物量的增加伴随着细菌细胞中铅含量的显著下降。这表明钙离子可保护细菌细胞免受铅中毒。
Zotero 插件