UV-B辐射对神农香菊光合作用的影响  

Effects of UV-B on Photosynthesis in Dendranthema indicum var. aromaticum

作　　者：杨扬[1] 焦宏彬 刘洋[1] 王欢[1] 何淼[1] 

机构地区：[1]东北林业大学,哈尔滨150040 [2]北京星河园林

出　　处：《东北林业大学学报》2017年第1期30-32,共3页Journal of Northeast Forestry University

基　　金：黑龙江省自然科学基金面上项目(C2015058)

摘　　要：以神农香菊无性系‘S1401’、‘S1407’为研究材料,研究了UV-B处理对神农香菊净光合速率、叶绿素质量分数、二磷酸核酮糖羧化酶(Ru BPCase)活性的影响。结果表明:随着UV-B处理时间的增加,神农香菊的净光合速率呈现先升高后降低的趋势;神农香菊叶片内的叶绿素a、叶绿素b质量分数显著下降,对类胡萝卜素质量分数的影响较小,且规律性不强;在UV-B胁迫条件下,神农香菊Ru BPCase羧化酶的活性降低,且随着辐射时间延长表现出先升后降的变化趋势。We studied the effect of UV-B on photosynthesis on net photosynthetic rate, chlorophyll content and RuBPCase activ- ity in Dendranthema indicum var. aromaticum. With the increase of UV-B treatment time, the net photosynthetic rate of D. indicum var. aromaticum firstly increased and then decreased. Under UV-B radiation, the content of chlorophyll a and chlorophyll b of D. inclicum vat. aromaticum presented the reducing trend, and the carotenoid content varied subtly. Under UV-B stress, RuBPCase carboxylase activity decreased, and showed a trend of lift and down with the prolonged radiation time.

关 键 词：神农香菊 UV-B 光合作用 净光合速率 叶绿素 RU BPCase酶 

分 类 号：S682.11[农业科学—观赏园艺] Q945.1[农业科学—园艺学]