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Histopathological Effects of Some Bacillus thuringiensis Strains on Mid-Gut of Potato Tuber Moth Larvae Phthorimaea operculella (Zell.) (Gelechiidae , Lepidoptera) | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 13, Issue 2, 2008, Pages 178-182 | ||
| Author | ||
| Nazar M. Al-Mallah | ||
| Abstract | ||
| The tissue sections of mid-gut larvae of potato tuber moth Phthorimaea operculella (Zell.) treated with LC50 concentration of Bacteria strains B. thuringiensis alesti, aegypti, kurstaki used in this study showed that the treatments cause destruction to epithelial cells of mid-gut canuls of the separation of longitudinal and circular muscles of epithelial layers, besides, the destruction of the basement membrane and peritrophic membrane and the great number of gaps among cells as a result of destruction of desosomes. This effect on the function of mid-gut was one of the principal causes which led to the inhibition of digestion process and absorption of food which caused death to the larvae after a short period of treatment. | ||
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