Studies of Mechanism of Systemic Resistance in Cucmber Induced by Pseudomonas syringae pv．1achryrnas

ACTA HORTICULTURAE SINICA ›› 2008, Vol. 35 ›› Issue (2): 221-226.

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Studies of Mechanism of Systemic Resistance in Cucmber Induced by Pseudomonas syringae pv．1achryrnas

SHI Yan-xia, Zhang Nan, and LI Bao-ju*

（Institute of Vegetables and Flowers,The Chinese Academy of Agricultural Sciences,Beijing 100081,China）

Received:2007-08-17 Revised:2007-09-20 Online:2008-02-25 Published:2008-02-25
Contact: LI Bao-ju

Abstract

Abstract: Systemic resistance of cucumber can be evoked when only one of the leaves inoculated by Pseudomonas syringae pv．1achryrnas, and the effect of protection is related with induced intervals, interval 24，48h has better effect. After induced inoculating , the content or activity of hydrogen peroxide (H2O2), Superoxide anion (NO2-), lipoxygenase (LOX) in inoculated leaf and it's upper，lower leaves (non-induced leaves) were much higher than control. Meanwhile, the content of salicylic acid increase obviously.

Key words: cucumber, aggressive pathogenic, systemic induced resistance

CLC Number:

S 642.2

SHI Yan-xia;Zhang Nan;and LI Bao-ju. Studies of Mechanism of Systemic Resistance in Cucmber Induced by Pseudomonas syringae pv．1achryrnas[J]. ACTA HORTICULTURAE SINICA, 2008, 35(2): 221-226.

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Studies of Mechanism of Systemic Resistance in Cucmber Induced by Pseudomonas syringae pv．1achryrnas

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