Department of Botany, University of Illinois, Urbana, Illinois 61801.
Plant Physiol. 1979 Feb;63(2):255-9. doi: 10.1104/pp.63.2.255.
A comparison has been made of the effects of fusicoccin with those of washing on segments of corn (Zea mays L.) root tissue. Both fusicoccin and washing caused increases in K(+)((86)Rb) influx, net H(+) efflux, and electrogenic cell membrane potential, but with no effect on respiration rate. The similarity was most evident with fresh tissue during the initial phases of washing, prior to the developmental changes which augment the anion and general solute transport rates of the tissue. After the development of enhanced transport capacity the proportional response to fusicoccin was much diminished. It is suggested that the fusicoccin-like response to washing may be a manifestation of recovery from injury.
已将木藜芦醇酸(fusicoccin)的作用与冲洗的作用进行了比较,前者是玉米(Zea mays L.)根组织的片段,后者是玉米(Zea mays L.)根组织的片段。木藜芦醇酸和冲洗都会引起钾(86Rb)内流增加、净氢离子外流和电致细胞膜电位增加,但对呼吸速率没有影响。在冲洗的初始阶段,新鲜组织中这种相似性最为明显,此时组织的阴离子和一般溶质转运率增加,发育变化之前。在增强的转运能力发展之后,对木藜芦醇酸的比例反应大大降低。有人认为,冲洗引起的类似木藜芦醇酸的反应可能是从损伤中恢复的表现。