CHEN Lanlan,GUO Shengmao,YAO Chunjuan,et al.Study on Fluorescence Characteristics Variation of Platycodon grandiflorus Leaves in Summer Drought[J].Northern Horticulture,2015,39(13):81-84.[doi:10.11937/bfyy.201513024]
夏季干旱对桔梗叶绿素荧光动态的影响
- Title:
- Study on Fluorescence Characteristics Variation of Platycodon grandiflorus Leaves in Summer Drought
- 文章编号:
- 1001-0009（2015）13-0081-04
- 分类号:
- Q 949.95
- 文献标志码:
- A
- 摘要:
- 以桔梗为试材，利用PAM-2500对其叶绿素荧光特性在夏季干旱条件下的动态变化进行了研究，探讨夏季干旱对桔梗叶绿素荧光动态的影响。结果表明：桔梗的荧光参数在夏季的3个月中变化趋势基本一致。叶片的部分Fv/Fm值低于正常水平，说明夏季干旱使桔梗受到了光抑制，导致其PSⅡ的原初光能转换效率受到抑制，直接影响了植物光合作用的电子传递。
- Abstract:
- Taking Platycodon grandiflorus as material，the dynamic variation of chlorophyll fluorescence characteristics of Platycodon grandiflorus in summer by using PAM-2500 was studied.The results showed that fluorescence parameters of Platycodon grandiflorus had the same change trend in the three months of summer.Among them，parts of Fv/Fm values were lower than normal level，it showed that Platycodon grandiflorus were enduring photo inhibition in summer，primary energy conversion efficiency of the PSⅡ was inhibited，which directly affected the electron transfer.
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备注/Memo
第一作者简介：陈兰兰（1991-），女，江西南昌人，硕士研究生，研究方向为森林培育。E-mail：www.lanlanchen@163.com.责任作者：郭圣茂（1970-），男，博士，副教授，研究方向为林业生态工程。E-mail：12155y838@qq.com.基金项目：中央财政林业科技推广示范资金资助项目（JXTG［2013］11号）。