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Physilogical Response of Cucumber Seedlings After Pseudoperonospora cubensis Inoculation(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年05期
Page:
25-27
Research Field:
Publishing date:

Info

Title:
Physilogical Response of Cucumber Seedlings After Pseudoperonospora cubensis Inoculation
Author(s):
LI Li-xia; FU Zhen-fang; HE Hui-qiang; LI Yu-hong
College of Horticulture，Northwest Agriculture and Forestry University，Yangling,Shanaxi 712100
Keywords:
cucumber; downy mildew; MDA; soluble sugar; soluble protein; ethylene
PACS:
S 642.204+.3
DOI:
-
Abstract:
Taking cucumber resistant variety ‘Jinchusihao’ and susceptible variety ‘Changchunmici’ as test material,the changes of malondialdehyde(MDA)，soluble sugar，soluble protein and ethylene content on cucumber seedlings after inoculated with Pseudoperonospora cubensis 0.5,1,2,4,7 d were analyzed，and relations between these physiogical changes and resistance against downy mildew were also studied.The results showed that the contents of MDA and ethylene in resistant variety were lower，while the contents of soluble sugar and soluble protein were higher than that of susceptible variety.It demonstrated that resistant variety possessed stronger protective ability and was more resistant to membrane lipid peroxidation.

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Last Update: 2014-08-27