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Bulletin of Botanical Research ›› 2013, Vol. 33 ›› Issue (5): 587-592.doi: 10.7525/j.issn.1673-5102.2013.05.015

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Correlation Analysis between Photosynthetic Characteristics and Contents of Active Ingredients in Saxifraga stolonifera Curt. under Different Light and Temperature Conditions

HE An-Na;;OU Li-Jun;;LI Sheng-Hua;;TAN Xiao-Li   

  1. 1.Department of Life Science,Huaihua University,Huaihua 418008;2.Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province,Huaihua 418008;3.Key Laboratory of Xiangxi Medicinal Plant and Ethnobotany of Hunan Higher Education,Huaihua 418008
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-09-20 Published:2013-09-20
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Abstract: 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.

Key words: Saxifraga stolonifera Curt., photosynthetic characteristics, active ingredients, correlation

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