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Effects of Exogenous Cinnamic Acids on the Growth and Physiological Characteristics of Cucumber Seedlings 被引量:2

Effects of Exogenous Cinnamic Acids on the Growth and Physiological Characteristics of Cucumber Seedlings
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摘要 In order to study the effects of exogenous cinnamic acids on plant growth, contents of photosynthetic pigment, root activities and ATPase activities of root membrane at cucumber seedling stage, the seedlings of Shandong Mici cucumber were tested. The results showed that seedlings growth, contents of photosynthetic pigment, root activities and ATPase activities of root membrane were inhibited by cinnamic acids. The growth and root activities of seedlings were significantly (P〈0.05) lower in the soil amended with 100 mg kg^-1 cinnamic acids compared to the control. The contents of chlorophyll a, chlorophyll a+b and carotenoid of seedlings significantly (P〈0.05) decreased in the soil amended with 200 mg kg^-1 cinnamic acids, whereas ATPase activities exhibited a higher sensitivity and greatly decreased in the soil amended with 50 mg kg^-1 cinnamic acids. These results suggested that cinnamic acids could induce a stress condition, and the stress intensities increased with enhanced cinnamic acid concentration. In order to study the effects of exogenous cinnamic acids on plant growth, contents of photosynthetic pigment, root activities and ATPase activities of root membrane at cucumber seedling stage, the seedlings of Shandong Mici cucumber were tested. The results showed that seedlings growth, contents of photosynthetic pigment, root activities and ATPase activities of root membrane were inhibited by cinnamic acids. The growth and root activities of seedlings were significantly (P〈0.05) lower in the soil amended with 100 mg kg^-1 cinnamic acids compared to the control. The contents of chlorophyll a, chlorophyll a+b and carotenoid of seedlings significantly (P〈0.05) decreased in the soil amended with 200 mg kg^-1 cinnamic acids, whereas ATPase activities exhibited a higher sensitivity and greatly decreased in the soil amended with 50 mg kg^-1 cinnamic acids. These results suggested that cinnamic acids could induce a stress condition, and the stress intensities increased with enhanced cinnamic acid concentration.
出处 《Agricultural Sciences in China》 CAS CSCD 2005年第10期747-751,共5页 中国农业科学(英文版)
基金 The research was funded by the National Natural Science Foundation of China(30070430,30370819,30230250).
关键词 CUCUMBER Cinnamic acids Photosynthetic pigment Root activities ATPASE Cucumber, Cinnamic acids, Photosynthetic pigment, Root activities, ATPase
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  • 1Jing Quan Yu,Yoshihisa Matsui.Effects of Root Exudates of Cucumber (Cucumis sativus) and Allelochemicals on Ion Uptake by Cucumber Seedlings[J].Journal of Chemical Ecology.1997(3)
  • 2Jing Quan Yu,Yoshihisa Matsui.Phytotoxic substances in root exudates of cucumber (Cucumis sativus L.)[J].Journal of Chemical Ecology.1994(1)
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