Effects of Cinnamic Acid on Photosynthesis and Cell Ultrastructure ofCucumber Seedling

ACTA HORTICULTURAE SINICA ›› 2004, Vol. 31 ›› Issue (2): 183-188.

• 研究论文 • Previous Articles Next Articles

Effects of Cinnamic Acid on Photosynthesis and Cell Ultrastructure ofCucumber Seedling

Wu Fengzhi;Pan Kai;Ma Fengming;Wang Xuedong

(Northeast Agricultural University，Harbin 150030，China;Northeast Forestry University，Harbin 150040，China)

Received:2003-06-16 Revised:2003-10-13 Online:2004-04-25 Published:2004-04-25

Abstract

Abstract:

The innuence of cinnamic acid at diferent concentrations(O，80，150 µmol·L )on leaf gas exchange and cell uhrastructure of cucumber seedlings was investigated in substrate culture． Resulted showed that the einnamie acid at 80 µmol·L significantly reduced the leaf-area，the content of chlorophyll
a，the photosynthesis rate，the respiratory rate，the activity of root and the opening number of stomata，aceompanied by a deformation of the ultrastructures of chloroplast，mitoehondfion．More significa t effects were
observed at a 150 µmol·L cinnamie acid treatment．All these showed that cinnamic acid significantly influenced the photosynthesis by reducing the activity of root，function of the chloroplast and mitoehondrion，stomata
operation．

Key words: Cucumber, Cinnamic acid, Root activity, Photosynthesis, Uhrastructure

CLC Number:

S642.2

Wu Fengzhi;Pan Kai;Ma Fengming;Wang Xuedong. Effects of Cinnamic Acid on Photosynthesis and Cell Ultrastructure ofCucumber Seedling[J]. ACTA HORTICULTURAE SINICA, 2004, 31(2): 183-188.

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Effects of Cinnamic Acid on Photosynthesis and Cell Ultrastructure ofCucumber Seedling

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