N. T. Habib, U., A. Abdel-Haleem, A., M. Mustafa, O., H. Ismail, E. (2018). Histological and ultrastructural alternations in the digestive gland of the Egyptian slug, Limax maximus (Linnaeus, 1758) treated with botanic molluscicidal thymol, with reference to biological studies. Egyptian Journal of Aquatic Biology and Fisheries, 22(5 (Special Issue)), 137-148. doi: 10.21608/ejabf.2018.19512
Ustina N. T. Habib; Ahmed A. Abdel-Haleem; Omaima M. Mustafa; Eman H. Ismail. "Histological and ultrastructural alternations in the digestive gland of the Egyptian slug, Limax maximus (Linnaeus, 1758) treated with botanic molluscicidal thymol, with reference to biological studies". Egyptian Journal of Aquatic Biology and Fisheries, 22, 5 (Special Issue), 2018, 137-148. doi: 10.21608/ejabf.2018.19512
N. T. Habib, U., A. Abdel-Haleem, A., M. Mustafa, O., H. Ismail, E. (2018). 'Histological and ultrastructural alternations in the digestive gland of the Egyptian slug, Limax maximus (Linnaeus, 1758) treated with botanic molluscicidal thymol, with reference to biological studies', Egyptian Journal of Aquatic Biology and Fisheries, 22(5 (Special Issue)), pp. 137-148. doi: 10.21608/ejabf.2018.19512
N. T. Habib, U., A. Abdel-Haleem, A., M. Mustafa, O., H. Ismail, E. Histological and ultrastructural alternations in the digestive gland of the Egyptian slug, Limax maximus (Linnaeus, 1758) treated with botanic molluscicidal thymol, with reference to biological studies. Egyptian Journal of Aquatic Biology and Fisheries, 2018; 22(5 (Special Issue)): 137-148. doi: 10.21608/ejabf.2018.19512
Histological and ultrastructural alternations in the digestive gland of the Egyptian slug, Limax maximus (Linnaeus, 1758) treated with botanic molluscicidal thymol, with reference to biological studies
1Department of Biological and Geological Sciences, Faculty of Education Ain Shams University, Cairo, Egypt.
2Department of Biological and Geological Sciences, Faculty of Education Ain Shams University, Cairo, Egypt
Abstract
The present work included biological studies, morphological and anatomical features, beside histological and ultrastructural alternations due to effects of the botanical thymol, as poison bait, on the digestive gland of the Egyptian giant garden slug, Limax maximus (Family: Limacidae) after treating it with LC50 and LC90 for 48 hrs.Thymol is considered as a botanic molluscicidal mono-terpenoid, that is found in several plants. The estimated value of LC50 and LC90 of thymol are 269.77 and 362.79 ppm respectively. The effect of LC90 on the digestive gland caused severe histological changes and ultrastructural abnormalities; as: cytoplasmic vacuolation, scattered toxic agents, degeneration of some nuclei and cells, rupture of microvilli, increasing of calcium spherules inside secretory cells and wide-fused vacuoles. So, thymol may be of great value in the field to control the target slug, as safe and economic molluscicide, which no harm upon ecosystems instead of using chemical pesticides that could pollute the environment
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