Literaturdatenbank
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Acuña-Mesén, R. A., Segura-Solís, S., Alvarado, L., & Sachsse, W. (2001). Ultraestructura de la cáscara de huevos eclosionados y no eclosionados de kinosternon angustipons (testudinata: kinosternidae): Ultrastructure of the eggshell of hatched and non hatched eggs of kinosternon angustipons (testudinata: kinosternidae). Revista de Biología Tropical, 49(3-4), 1123–1130.
Added by: Admin (17 Aug 2008 18:54:40 UTC) Last edited by: Beate Pfau (09 May 2009 08:42:36 UTC) |
| Resource type: Journal Article BibTeX citation key: AcunaMesen2001 View all bibliographic details  |
Categories: General Keywords: Kinosternidae, Kinosternon, Kinosternon angustipons, Kinosternon leucostomum, Kinosternon scorpioides, Schildkröten = turtles + tortoises, Zeitigung = incubation Creators: Acuña-Mesén, Alvarado, Sachsse, Segura-Solís Collection: Revista de Biología Tropical |
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| Abstract |
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Abstract: The ultrastructure of eggshells of Kinosternon angustipons is described and compared with the ones of K. leucostomum and K. scorpioides. Four eggs from captive turtles (30 sections) were studied with Scanning Electron Microscopy (SEM). The shell has three layers: cuticle or external, calcareous or intermediate and tes- tacean or internal. Hatched and non hatched eggs have similar characteristics in their external surface: fanned units and proteic fibers superposed at random. They differ in the presence of spongelike structures and more external porosity in non hatched eggs. The intermediate and testacean layers of the hatched eggs have lance point like spaces and are thin in the proteic fibers. The ultrastructural evidence shows that during the embryon- ic development the thickness of the peel decreases. Non hatched K. angustipons shells are thicker than in the other two kinosternon species of Costa Rica
Added by: Admin Last edited by: Beate Pfau |