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作 者 ：李元  祖艳群  高召华  高光凯

期 刊 ：西北植物学报 2006年 1期

关键词：UV-B辐射；报春花；叶绿素；类黄酮；花青素；膜透性；

Keywords:UV-B radiation, Primula malacoides, flavonoid, procyanidin, membrane permeability,

摘 要 ：通过室内模拟试验,研究不同强度的UV-B辐射(10μW/cm2和20μW/cm2)对报春花生理代谢的影响,结果表明:(1)增强UV-B辐射下,报春花叶片叶绿素含量降低,且随UV-B辐射时间的延长,降低程度加大;(2)随UV-B辐射强度的增加,叶片质膜透性增加;(3)叶片类黄酮含量随着UV-B辐射强度的增加而增加,在辐射至40 d时,叶片类黄酮含量达到最大值;(4)增强UV-B辐射下,报春花花瓣中花青素含量增加.

Abstract:Physiological and biochemical effects of UV-B radiation at different intensities on Primula malacoides were studied throught indoor simulation and the results showed that(1) enhanced UV-B radiation lowered chlorophyll contents in the leaves of P.malacoide

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