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EMBRYONIC SURFACE CILIATED CELLS IN ELEUTHERODACTYLUS URICHI (ANURA: LEPTODACTYLIDAE) | ||
| Iranian Journal of Science | ||
| مقاله 14، دوره 30، شماره 1، اردیبهشت 2006، صفحه 133-137 اصل مقاله (279.45 K) | ||
| نوع مقاله: Research Note | ||
| شناسه دیجیتال (DOI): 10.22099/ijsts.2006.2742 | ||
| نویسنده | ||
| M. NOKHBATOLFOGHAHAI* | ||
| Biology Department, Faculty of Sciences, University of Shiraz, Shiraz, I. R. of Iran, 71454 | ||
| چکیده | ||
| While our knowledge of anuran embryonic and larval surface ciliation and their diversity of ciliation patterns are significant, very few references were noticed on embryonic ciliation in direct-developing anurans, such as species in the genus Eleutherodactylus. Eleutherodactylus urichi embryos were found to have surface ciliated cells during much of their development until a few days before hatching. Ciliation was most prominent on the pharyngeal region and on the tail fins, both regions believed to have a respiratory role, and supporting the hypothesis that embryonic ciliation in amphibians serves principally to aid respiration by moving intracapsular fluid. The limb-buds were also well ciliated, an evolutionary novelty since in most anurans with a tadpole stage, surface ciliation regresses before limbs show significant development. | ||
| کلیدواژهها | ||
| Eleutherodactylus؛ direct development؛ embryonic ciliation | ||
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