Targeting Plutella xylostella digestive enzymes by applying resistant Brassicaceae host cultivars

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FATHIPOUR YAGHOUB; Kianpour Roja; Bagheri Abdoolnabi; KARIMZADEH JAVAD; HOSSEININAVEH VAHID; Mehrabadi Mohammad

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Journal: JOURNAL OF CROP PROTECTION Year:2020 | Volume:9 | Issue:1 Page(s): 65-79

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Title

Targeting Plutella xylostella digestive enzymes by applying resistant Brassicaceae host cultivars

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Keywords

BrassicaceaeQ1

digestive enzymesQ1

plant resistanceQ1

Plutella xylostellaQ1

Abstract

The diamondback moth, Plutella xylostella (L. ) (Lepidoptera: Plutellidae) is one of the most destructive insect pests, feeding exclusively on wild and cultivated cruciferous species. The attacked plants produce considerable amount of glucosinolates in response to insects’ feeding. Herein, we studied digestive activities of P. xylostella on four different genotypes of family Brassicaceae including two canola cultivars (SLM046 and RGS003) and two cabbage cultivars (Green-Cornet and Glob-Master). The highest proteolytic and amylolytic activities of P. xylostella were observed on GreenCornet and the lowest occurred on RGS003 and Glob-Master, respectively. The highest activity of α-glucosidase and β-glucosidases were observed on GreenCornet and SLM046 and the lowest was observed on Glob-Master and RGS003. The zymogram analysis revealed different isozymes of protease, trypsin-like and α-amylase in the midgut extract of P. xylostella. Activity of the above mentioned isozymes was inhibited in larvae feeding on RGS003 and Glob Master as resistant host cultivars. Also, larvae feeding on the resistant genotypes showed more glucosidase activities, indicating possibility of high glycosinolate existence in the resistant genotypes. By these results we can state that host plant property can affect insect digestive physiology through inhibiting digestive enzyme activities. These findings provide insights into the direct effects of host plants on insect physiology which are conducive to change in insect fitness.

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APA: Copy

FATHIPOUR, YAGHOUB, Kianpour, Roja, Bagheri, Abdoolnabi, KARIMZADEH, JAVAD, HOSSEININAVEH, VAHID, & Mehrabadi, Mohammad. (2020). Targeting Plutella xylostella digestive enzymes by applying resistant Brassicaceae host cultivars. JOURNAL OF CROP PROTECTION, 9(1 ), 65-79. SID. https://sid.ir/paper/239102/en

Vancouver: Copy

FATHIPOUR YAGHOUB, Kianpour Roja, Bagheri Abdoolnabi, KARIMZADEH JAVAD, HOSSEININAVEH VAHID, Mehrabadi Mohammad. Targeting Plutella xylostella digestive enzymes by applying resistant Brassicaceae host cultivars. JOURNAL OF CROP PROTECTION[Internet]. 2020;9(1 ):65-79. Available from: https://sid.ir/paper/239102/en

IEEE: Copy

YAGHOUB FATHIPOUR, Roja Kianpour, Abdoolnabi Bagheri, JAVAD KARIMZADEH, VAHID HOSSEININAVEH, and Mohammad Mehrabadi, “Targeting Plutella xylostella digestive enzymes by applying resistant Brassicaceae host cultivars,” JOURNAL OF CROP PROTECTION, vol. 9, no. 1 , pp. 65–79, 2020, [Online]. Available: https://sid.ir/paper/239102/en

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