摘要
对盆栽的虎耳草进行不同光照和温度处理,测定其叶片光合特性及重要有效成分,分析虎耳草有效成分与光合速率的相关性。结果表明:虎耳草光合速率在透光率50%的条件下最高,透光率100%下最低;100%光照下的岩白菜素和没食子酸的含量最高。光合速率在20℃/16℃(12 h昼/12 h夜)适温下最高,此时岩白菜素和没食子酸的含量也最高。相关性分析表明,温度处理条件下的岩白菜素和没食子酸含量与光合速率、气孔张开面积等呈正相关,其中没食子酸含量与光合速率及蒸腾速率的正相关达极显著;不同光照条件下,没食子酸含量与光合有效辐射呈显著正相关。
Saxifraga stolonifera Curt. was potted under different light and temperature treatments. Photosynthetic characteristics and contents of active ingredients were measured to analyze the correlation between them. The results showed that, photosynthetic rate was the highest under 50% transmittance, and the lowest under 100% transmittance. Contents of bergenin and gallic acid in S. stolonifera Curt. were the highest under 100% transmittance. Photosynthetic rate of S. stolonifera Curt. was the highest under 20℃/16℃（ 12 h daytime/12 h nighttime） optimum temperature, which had the highest contents of bergenin and gallic acid. Correlation analysis showed that, contents of bergenin and gallic acid and photosynthetic rate, stomatal open area had positive correlations, contents of gallic acid and photosynthetic rate and transmittance rate had extremely significantly positive correlation under temperature treatment. Contents of gallic acid and photosynthetic effective radiation had significant positive correlation under light treatment.
出处
《植物研究》
CAS
CSCD
北大核心
2013年第5期587-592,共6页
Bulletin of Botanical Research
基金
湖南省科技计划重点项目(2012FJ4064)
民族药用植物资源研究与利用湖南省重点实验室开放基金(ZDSYSJJ 2012-5)
关键词
虎耳草
光合特性
有效成分
相关性
Saxifraga stolonifera Curt.
photosynthetic characteristics
active ingredients
correlation
