Effects of Exogenous Methyl Ja smona te on Chilling Injury and Physiologyand Biochem istry in Postharvest Cucumber

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (2): 289-293.

• 研究论文 • Previous Articles Next Articles

Effects of Exogenous Methyl Ja smona te on Chilling Injury and Physiologyand Biochem istry in Postharvest Cucumber

Han J in1, 2 and Tian Ship ing13

(1 Institute of B otany, Chinese Academ y of Sciences, B eijing 100093, China; 2Graduate School, Chinese Academ y of Sciences,B eijing 100039, China)

Received:2005-04-25 Revised:2005-06-17 Online:2006-04-25 Published:2006-04-25

Abstract

Abstract: The effects of exogenous methyl jasmonate (MJ) on physiological and biochemical attributes of cucumber (Cucumis sativus L. ‘Shennong 5’) under low temperature stress were investigated in this paper. The results indicated that symp toms of chilling injury in the cucumber treated withMJ developed slowly, electrolyte leakage of cellmembrane, p roline content and soluble solids content decreased after the treatment. MJ treatment could increase catalase activity, decrease peroxidase activity, but it could not affect significantly superoxide dismutase activity. Additionally, the concentration of MJ significantly affected chlorophyll content in cucumber. Therefore, the effect ofMJ on enhancing resistance of cucumber fruits to chilling stressmay attribute to altering its physiological pathways.

Key words: Cucumber, Methyl jasmonate, Fruit, Chilling injury, Antioxidant enzymes, Chlorophyll content

Han J in; and Tian Ship ing. Effects of Exogenous Methyl Ja smona te on Chilling Injury and Physiologyand Biochem istry in Postharvest Cucumber[J]. ACTA HORTICULTURAE SINICA, 2006, 33(2): 289-293.

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Effects of Exogenous Methyl Ja smona te on Chilling Injury and Physiologyand Biochem istry in Postharvest Cucumber

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