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العنوان
Histological and Ultrastructural studies on the effect of certain plant extracts on the digestive and hermaphrodite glands of the Egyptian giant garden /.
الناشر
جامعة عين شمس . كلية التربية . قسم العلوم البيولوجية و الجيولوجيا .
المؤلف
حبيب ، يوستينا ناصر توفيق.
هيئة الاعداد
باحث / يوستينا ناصر توفيق حبيب
مشرف / أميمة محمد مصطفى
مشرف / أحمد عبد السلام عبد الحليم
مشرف / سمير محمد حسن بلتاجى
مشرف / عواد عبده محمد السيد
تاريخ النشر
1/1/2019
عدد الصفحات
186 ص ،
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علوم الحشرات
تاريخ الإجازة
1/1/2019
مكان الإجازة
جامعة عين شمس - كلية التربية - قسم العلوم البيولوجية و الجيولوجيا .
الفهرس
Only 14 pages are availabe for public view

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Abstract

The Egyptian giant garden slug, Limax maximus Linnaeus, 1758 (Family: Limacidae: Pulmonata: Gastropoda: Mollusca) had been manually collected from of garden in Faculty of Education, Ain Shams University.
The main aspects of the present work can be summarized as follows:
Study of morphological features of L. maximus.
Study of the internal anatomical organs of L. maximus.
Susceptibility of L. maximus to LC50 and LC90 of two extracted botanical molluscicids, namely thymol and caffeine.
Histological investigations of untreated digestive and hermaphrodite (ovotestis) glands of L. maximus.
Study of histological altrnations in the two glands due to treating of L. maximus with LC50 and LC90 of thymol and caffeine, as poison baits.
Cytological investigations, using TEM, of untreated digestive and hermaphrodite glands of L. maximus.
Cytological altrnations in the two glands of L. maximus due to treating with LC50 and LC90 of thymol and caffeine.
LC50 of treated L. maximus with thymol and caffeine are 269.77 ppm and 652.52 ppm respectively, whereas LC90 are 362.79 pmm and 873.53 ppm respectively, and could be arranged based on their toxic effects in the order: thymol˃caffeine. Histological and ultrastructure investigations of digestive and hermaphrodite glands of L. maximus with LC90 of thymol and caffeine showed severe histological changes and ultrastructure abnormalities, including severe damage in architecture of digestive gland-cells and hermaphrodite gland. These results may be of great value in the field to control the target L. maximus-slug, as safe and economic molluscicide, which no harm upon ecosystems, instead of using chemical pesticides that could pollute the environment.