Dahi, H., Salman, A., Fouad, H., Elgedawy, A. (2022). Biochemical and Physiological Reactions for Field Strain of Cotton Leafworm, Spodoptera littoralis (Boisd.) as An Exposure-Response to Temperature Under Climatic Change. test, 14(1), 91-106. doi: 10.21608/eajbsc.2022.215049
Hassan F. Dahi; Ahmed M. A. Salman; Hany A. Fouad; Abdel Rahman M. H. Elgedawy. "Biochemical and Physiological Reactions for Field Strain of Cotton Leafworm, Spodoptera littoralis (Boisd.) as An Exposure-Response to Temperature Under Climatic Change". test, 14, 1, 2022, 91-106. doi: 10.21608/eajbsc.2022.215049
Dahi, H., Salman, A., Fouad, H., Elgedawy, A. (2022). 'Biochemical and Physiological Reactions for Field Strain of Cotton Leafworm, Spodoptera littoralis (Boisd.) as An Exposure-Response to Temperature Under Climatic Change', test, 14(1), pp. 91-106. doi: 10.21608/eajbsc.2022.215049
Dahi, H., Salman, A., Fouad, H., Elgedawy, A. Biochemical and Physiological Reactions for Field Strain of Cotton Leafworm, Spodoptera littoralis (Boisd.) as An Exposure-Response to Temperature Under Climatic Change. test, 2022; 14(1): 91-106. doi: 10.21608/eajbsc.2022.215049

Biochemical and Physiological Reactions for Field Strain of Cotton Leafworm, Spodoptera littoralis (Boisd.) as An Exposure-Response to Temperature Under Climatic Change

Egyptian Academic Journal of Biological Sciences. C, Physiology and Molecular Biology
Article 9, Volume 14, Issue 1, June 2022, Pages 91-106    PDF (1004.52 K)
Document Type: Original Article
DOI: 10.21608/eajbsc.2022.215049
Authors
Hassan F. Dahi1; Ahmed M. A. Salman2; Hany A. Fouad2; Abdel Rahman M. H. Elgedawy1
1Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
2Plant Protection Department, Faculty of Agriculture, Sohag University, Egypt
Abstract
It is important to understand the effects of temperatures on Egyptian cotton leafworm Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) which damages a wide variety of crops in the Middle East and is one of the major economic pests of cotton in Egypt. Therefore, the investigating was designed to study the effect of fluctuation temperatures on the field strain in Abnob city, Assuit Governorate during the 2017 and 2018 cotton growing seasons. On the other hand, the results compared with the laboratory strain under constant temperature (25°C). The biochemical parameters were measured on the 4th larval instars for both strains. Biochemical analyses were performed to determine the effects of fluctuation and constant temperatures on field and laboratory strain on total proteins, lipids, carbohydrates and free amino acids as well as metabolic digestive, neural and detoxification enzymes. It's clear from the results that the GST, GOT, AchE, Alpha esterases, Beta esterases as well as, the activity levels were increased significantly by field strain. While the free amino acids, total proteins, proteases, lipases, amylase were decreased significantly by field strain and no significant changes were detected between field and laboratory strains in total carbohydrates, total lipids, trehalase and GPT.
Keywords
Cotton leafworm; temperature; biochemical parameters; proteins; lipids; carbohydrates; free amino acids; GST; GOT; AchE
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