Department of Botany, University of California, Davis, California 95616.
Plant Physiol. 1984 May;75(1):138-41. doi: 10.1104/pp.75.1.138.
N-Ethylmaleimide causes a rapid efflux of K(+) from suspension-cultured cells of Rosa damascena. This efflux shows many characteristics of the ultraviolet-induced efflux of K(+), including the appearance of HCO(3) (-) together with the K(+) and inhibition by respiratory inhibitors. Cysteine inhibits the ultraviolet-induced efflux of K(+). These results are interpreted to mean that ultraviolet induces K(+) efflux through an alteration of sulfhydryl residues.
N-乙基马来酰亚胺会导致悬液培养的大马士革蔷薇细胞中钾离子的快速外流。这种外流表现出许多与紫外线诱导的钾离子外流相同的特征,包括 HCO3(-) 与钾离子一同出现,以及被呼吸抑制剂抑制。半胱氨酸抑制紫外线诱导的钾离子外流。这些结果表明,紫外线通过改变巯基残基诱导钾离子外流。