蓝藻聚球藻6311中的钠/氢交换
Na+/H+ exchange in the cyanobacterium Synechococcus 6311.
作者信息
Blumwald E, Wolosin J M, Packer L
出版信息
Biochem Biophys Res Commun. 1984 Jul 18;122(1):452-9. doi: 10.1016/0006-291x(84)90497-2.
PMID:6430295
Abstract
The cyanobacterium Synechococcus 6311 adapts to grow in 0.6 M NaCl by developing an efficient system for sodium extrusion. In the present investigation cells loaded with NaC1 were subjected to a large dilution. Changes in fluorescence quenching of acridine orange as a function of transmembrane Na+ gradients provide evidence that Na+/H+ exchange activity greatly enhanced in salt-adapted cells.
摘要
蓝藻聚球藻6311通过开发一种高效的钠排出系统来适应在0.6M氯化钠中生长。在本研究中，加载有氯化钠的细胞被进行了大量稀释。吖啶橙荧光猝灭随跨膜钠离子梯度变化的情况提供了证据，表明在适应盐环境的细胞中钠/氢交换活性大大增强。
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