BIOLOGICAL ASPECTS OF THE DIGESTIVE SYSTEM OF CAELATURA TERETIUSCULA (BIVALVIA: UNIONIDAE)
Gabri, M., Fawaz, A., Saad, A., Aly, R. (2005). BIOLOGICAL ASPECTS OF THE DIGESTIVE SYSTEM OF CAELATURA TERETIUSCULA (BIVALVIA: UNIONIDAE). EKB Journal Management System, 9(1), 15-40. doi: 10.21608/ejabf.2005.1815
Mohamed Gabri; AbeerA Fawaz; Abd El-Halim Saad; Reda Aly. "BIOLOGICAL ASPECTS OF THE DIGESTIVE SYSTEM OF CAELATURA TERETIUSCULA (BIVALVIA: UNIONIDAE)". EKB Journal Management System, 9, 1, 2005, 15-40. doi: 10.21608/ejabf.2005.1815
Gabri, M., Fawaz, A., Saad, A., Aly, R. (2005). 'BIOLOGICAL ASPECTS OF THE DIGESTIVE SYSTEM OF CAELATURA TERETIUSCULA (BIVALVIA: UNIONIDAE)', EKB Journal Management System, 9(1), pp. 15-40. doi: 10.21608/ejabf.2005.1815
Gabri, M., Fawaz, A., Saad, A., Aly, R. BIOLOGICAL ASPECTS OF THE DIGESTIVE SYSTEM OF CAELATURA TERETIUSCULA (BIVALVIA: UNIONIDAE). EKB Journal Management System, 2005; 9(1): 15-40. doi: 10.21608/ejabf.2005.1815

BIOLOGICAL ASPECTS OF THE DIGESTIVE SYSTEM OF CAELATURA TERETIUSCULA (BIVALVIA: UNIONIDAE)

Egyptian Journal of Aquatic Biology and Fisheries
Article 2, Volume 9, Issue 1, January 2005, Page 15-40  XML PDF (3.77 MB)
Document Type: Original Article
DOI: 10.21608/ejabf.2005.1815
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Authors
Mohamed Gabri1; AbeerA Fawaz1; Abd El-Halim Saad2; Reda Aly2
1Zoology Dept., Faculty of Science. Helwan Univ
2Zoology Dept.. Faculty of Science. Ain Shams Univ.
Abstract
The digestive system of the clam Caelatura lerelhtscvla consists of the mouth, oesophagus, complicated stomach, combined style sac and mid gut. intestine, rectum and digestive gland.The combined mid gut and style sac are differentiated into four regions. The crystalline style, is lodged inside the style sac and projected into the lumen of the stomach. There are three groups of digestive gland ducts that open into the stomach.The microscopic examination of the interior surface of the digestive tract is formed of a single layer of columnar cells provided with cilia, varying in their length and density. These cells have oval nuclei which occupy variable levels. There are some club-shaped secretory cells distributed between the columnar ones. They acquired deep magenta colour with PAS. The digestive gland tubules are lined with two main eel! types: the digestive and secretory cells. Its ducr is lined bv a laver of ciliated columnar cells.
V If Histochemically, the digestive cells exhibited a moderate colouration with PAS and mercuric bromophenol blue. However, the secretory ones displayed a dark magenta and blue color with PAS and bromophenol respectively.
Keywords
DIGESTIVE SYSTEM; Caelatura teretiuscula; amalomy . histology
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