INFECTED FRESHWATER SNAILS, BIOMPHALARIA ALEXANDRINA, THE INTERMEDIATE HOST OF SCHISTOSOMA MANSONI | ||
| Journal of the Egyptian Society of Parasitology | ||
| Article 3, Volume 48, Issue 3, December 2018, Pages 503-507 PDF (388.97 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jesp.2018.76544 | ||
| Authors | ||
| AMINA M. IBRAHIM1; OLFAT A. HAMMAM2; SHADIA M. EL-DAFRAWY1 | ||
| 1Department of Medical Malacology, Theodor Bilharz Research Institute, Imbaba P.O. Box 30, Giza, Egypt. | ||
| 2Department of Pathology, Theodor Bilharz Research Institute, Imbaba P.O. Box 30, Giza, Egypt. | ||
| Abstract | ||
| The objective was to study the chromosomes of Biomphalaria alexandrina snails (class Gastropoda) in control and infected state which could be helpful in understanding how host-parasite relationships in feasible and effective control measures. The chromosomal changes were studied using the air-drying method. The results showed that B. alexandrina had a diploid chromosome number, 2n = 36. Also, the meiotic stages were detected as early- leptotene and late leptotene, zygotene, diplotene, metaphase I. The result also revealed the presence of a primitive sperm, with a conical head and a very long, uni-flagellate tail. A comparative meiotic chromosome analysis between the control and infected ones showed some significant differences, as pachytene and diplotene were more condensed. | ||
| Keywords | ||
| Biomphalaria alexandrina; infected; Non-infected; Chromosomes | ||
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