模拟酸雨对棉花子叶细胞膜起始伤害和最大伤害的影响

本文研究了模拟酸雨对棉花子叶细胞膜起始伤害和最大伤害变化特点的影响。结果表明导致起始伤害和最大伤害发生的酸雨pH值即Pi和Pmax与酸雨胁程之间各具特定的直线关系或曲线关系,在Pi和Pmax诸特征胁强迫下,伤害指标细胞膜透性(Yp)随胁程的变化亦各有特点。文中还对于在植物酸雨伤害过程和其它生物学过程与现象中广泛存在的直角双曲线规律的特点作了较充分的讨论。

EFFECTS OF THE SIMULATED ACID RAIN ON THE INITIATIVE AND MAXIMUM INJURY OF CELL MEMBRANES IN COTTON COTYLEDONS

Effects of the simulated acid rain on the initiative and maximum injury of cell membranes in cotton (G. hirsuium L.)cotyledons were studicd. it was observed that the pH values of acid rain resulted in initiative and maximum injury of cell membranes, ie Pie and Pmaxei for short respectively, had some special linear or curve relations with the exposure duration in acid rain. Some shifts of cell membrane permeability with exposure duration in acid rain had their special tendency under stress of Piei and Pmaxci. Characteristics of the law of rectangular hyperbola widely existing in the process of injury by acid rain and other biological process and pheromcna were discussed fully last.