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2006•Gansu Nongye Daxue xuebaoRequires access

Defense enzymes and disease resistance substances induction in muskmelons by preharvest benzothiazole(BTH) spraying

Li Wenhao

Open publisher page 2 citations

Abstract

The plants of muskmelon(cv.Yindi) were sprayed with benzothiazole(BTH) at 100 mg/L for 1,2,3 and 4 times at 1 week before flowering,young fruit period,fruit enlarging period and netting period,respectively.Some parameters of resistance were analyzed afterone week of treatment.The results showed that the activities of peroxidase(POD),polyphenol oxidase(PPO) and phenylalanine ammonia lyase(PAL)increased significantly in treated fruit.BTH treatment also promoted the accumulation of total phenolics,hydroxyproline-rich glycoprotein(HRGP) and lignin.The enzymatic activities and defense substances increased with the spray time,4 and 3 times of treatment with BTH were better than that of 1 and 2 times.

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What this paper is about

The plants of muskmelon(cv.Yindi) were sprayed with benzothiazole(BTH) at 100 mg/L for 1,2,3 and 4 times at 1 week before flowering,young fruit period,fruit enlarging period and netting period,respectively.Some parameters of resistance were analyzed afterone week of treatment.The results showed that the activities of peroxidase(POD),polyphenol oxidase(PPO) and phenylalanine ammonia lyase(PAL)increased significantly in treated fruit.BTH treatment also promoted the accumulation of total phenolics,hydroxyproline-rich glycoprotein(HRGP) and lignin.The enzymatic activities and defense substances increased with the spray time,4 and 3 times of treatment with BTH were better than that of 1 and 2 times.

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Available abstract

The plants of muskmelon(cv.Yindi) were sprayed with benzothiazole(BTH) at 100 mg/L for 1,2,3 and 4 times at 1 week before flowering,young fruit period,fruit enlarging period and netting period,respectively.Some parameters of resistance were analyzed afterone week of treatment.The results showed that the activities of peroxidase(POD),polyphenol oxidase(PPO) and phenylalanine ammonia lyase(PAL)increased significantly in treated fruit.BTH treatment also promoted the accumulation of total phenolics,hydroxyproline-rich glycoprotein(HRGP) and lignin.The enzymatic activities and defense substances increased with the spray time,4 and 3 times of treatment with BTH were better than that of 1 and 2 times.

Key concepts: Phenylalanine ammonia-lyase, Polyphenol oxidase, Preharvest, Peroxidase, Point of delivery, Chemistry, Benzothiazole, Horticulture

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Defense enzymes and disease resistance substances induction in muskmelons by preharvest benzothiazole(BTH) spraying — Research Paper | ScholarLens