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Induction Resistance and Defense Enzyme Activity by Extraneous Factors to Fusarium oxysporum f.sp.melonis in Melon(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年14
Page:
122-126
Research Field:
Publishing date:

Info

Title:
Induction Resistance and Defense Enzyme Activity by Extraneous Factors to Fusarium oxysporum f.sp.melonis in Melon
Author(s):
LIU Lu; SUN Lei; ZHANG Zhipeng; AN Meichen; CHEN Kenong; WANG Xuezheng
(College of Horticulture,Northeast Agricultural University/The Key Laboratory of Horticultural Crop Biology and Germplasm Creation in Northeast Region of Ministry of Agriculture,Harbin,Heilongjiang 150030)
Keywords:
salicylic acid; methyl jasmonate; Ca2+; induced resistance; Fusarium Wilt; defense enzyme; melon
PACS:
-
DOI:
10.11937/bfyy.201614030
Abstract:
Taking two melon cultivars “MR-1”and “M1-15” as materials,Fusarium oxysporum f.sp.meloris as test bacterial strain using the nutritional bowl of cultivayion methods,the effcet of different extraneous SA,MeJA,Ca2+ induction resistance to Fusarium Wilt in melon were studied.The results indicated that the three exogenous substances had different effects on the resistance to Fusarium Wilt of melon，in which the effect of salicylic acid and methyl ester was the best.1.0 mmol?L-1 salicylic acid induced the relative control effect of 50.7% and 45.7% on the Fusarium Wilt of melon；1.2 mmol?L-1 methyl ester treatment on the relative prevention effect of melon wilt was 66.7% and 40.3%,which was significantly higher than that of control and Ca2+ treatment.After induction of SA and MeJA,the activity of related resisitance enzyme polyphenol oxidase (PPO) and phenylalanine ammonia (PAL) in the leaf of melon was uptrend.

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Last Update: 2016-08-17