首页|期刊导航|中国农业科学（英文版）|Postharvest ASM or Harpin Treatment Induce Resistance of Muskmelons Against Trichothecium roseum
中国农业科学（英文版）2008，Vol.7Issue(2)：217-223,7.
Postharvest ASM or Harpin Treatment Induce Resistance of Muskmelons Against Trichothecium roseum
Postharvest ASM or Harpin Treatment Induce Resistance of Muskmelons Against Trichothecium roseum
摘要
Abstract
Induced resistance was studied in muskmelons(cv.Yindi)inoculated Trichothecium roseum with postharvest 1,2,3-benzothiadiazole-7-carbothioic acid S-methyl ester(ASM)(100 mg L-1)or harpin(50 mg L-1)treatment.Both ASM and harpin significantly reduced lesion diameter in inoculated fruit.Lesion diameter was limited in the treated and untreated halves of the same fruit,indicating that the local and systemic resistance was induced.Inhibiting efficacy of elicitors lasted 7 and 5 days in the treated and untreated halves.The resistance increased by the chemicals was associated with the activation of peroxidase(POD)and chitinase(CHT).The elicitors induced a significantly and progressively increasing activity of POD and CHT in the treated and untreated halves,and the activation lasted at least 5 days.The activities of POD isoenzymes increased in the treated fruit.However,no new enzyme band was found in the treated and untreated halves.关键词
muskmelon,elicitor,decay,induced resistanceKey words
muskmelon,elicitor,decay,induced resistance分类
农业科技引用本文复制引用
WANG Yi,LI Xuan,BI Yang,GE Yong-hong,LI Yong-cai,XIE Fang..Postharvest ASM or Harpin Treatment Induce Resistance of Muskmelons Against Trichothecium roseum[J].中国农业科学（英文版）,2008,7(2):217-223,7.基金项目
This study was supported by the grants from Ministry of Education,China(E2004-2-62005)and Departmentof Education of Gansu Province,China(0502-02). （E2004-2-62005）
