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- Title
Interactions of Host Plants and Bacillus thuringiensis israelensis Injection on the Performance and Midgut Protein Profile of Schistocerca gregaria Forskal, Adults.
- Authors
Barakat, E. M. S.; Abd-El Aziz, Mona F.; El-Monairy, Olfat M.; El-Barky, Nehad M.; Abd- El Khalek, Heba F.
- Abstract
This study highlights the complex relationship among the type of food, the performance of the locusts and midgut proteins as well as the impact of bacterial injection on the midgut proteins of adult. Grasshopper nymphs were supplied by different types of natural vegetation (grass, sorghum, sesban and clover) according to the seasons. The desert locust, Schistocerca gregaria Forskal fed on clover showed highest growth rate and largest mass and, vice versa in grass fed locusts. The insects fed on grass (low protein diet) recorded lowest midgut protein content while those fed on clover (high protein diet) recorded highest midgut protein. The change in diet produced protein profiles differences among the feeding groups of S. gregaria adults. Insects fed on clover had many characteristic bands in protein profile of midgut and vice versa in case of those fed on grass. After Bacillus thuringiensis israelensis (Bti) injection, adults fed on clover showed the least susceptibility to Bti and vice versa in grass. Analysis of midgut proteins by SDS-polyacrylamide gel electrophoresis showed appearance of new bands in the injected adults compared to normal ones. In conclusion, this study emphasizes the close relationship between the type of food and the performance of the insect. It also confirmed the impact of food and Bti injection on midgut proteins.
- Subjects
LOCUSTS; PROTEINS; HOST plants; ELECTROPHORESIS; PHYTOPHAGOUS insects
- Publication
Egyptian Journal of Biological Pest Control, 2015, Vol 25, Issue 1, p205
- ISSN
1110-1768
- Publication type
Article