Abstract
The infecting flight muscles of adult desert locust Schistocerca gregaria with the entomopathogenic fungus Beauveria bassiana were studied. The entomopathogenic fungus caused mortality percentages 85.56 and 81.11% in 5th nymphal instar and adults after 15 days of treatment; also, LT50 was 9.17 and 10.07 days. The histopathological studies of treated muscles showed that the nucleus, mitochondria, myofibrils and vacuoles were highly deformed. Estimation of total carbohydrates, total lipids and total protein were carried out. The results showed that the Haemolymph content of treated insects was highly affected and all the studied parameters were lower than in the control insects. The decrease in the Haemolymph contents increased with increasing the post-inoculation period.
Highlights
EntomologyThe Effect of an Entomopathogenic Fungus, Beauveria bassiana on Flight Muscles of The Desert Locust, Schistocerca gregaria Forskal
Migratory insect commonly relays on lipids as main energy supply for flight muscle during their migration
The fatty acid-binding protein is the most abundant soluble muscle protein in S. gregaria comprising about 18% of the total cytosolic proteins (Haunerland et al, 1992)
Summary
The Effect of an Entomopathogenic Fungus, Beauveria bassiana on Flight Muscles of The Desert Locust, Schistocerca gregaria Forskal. Article History Received:11/10/2020 Accepted:12/1/2021 Keywords: The desert locust Muscles, Entomopathogenic fungi, Histopathology, Total carbohydrates, lipids and Protein
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