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[Effect of temperature on the rate of oxygen consumption during the second half of embryonic and early postembryonic development of European pond turtle Emys orbicularis (Reptilia: Emydidae)].
Izv Akad Nauk Ser Biol ; (5): 585-91, 2005.
Article en Ru | MEDLINE | ID: mdl-16240756
Oxygen consumption by eggs of European pond turtle was determined at two constant incubation temperatures of 25 and 28 degrees C during the second half of embryogenesis. During development at both temperatures, the rate of oxygen consumption initially increased to remain constant during the last quarter of embryogenesis. The difference between the rates of oxygen consumption at these temperatures decreased during the studied period. The coefficient Q10 for the rate of oxygen consumption decreased from 9 to 1.7. At an incubation temperature of 28 degrees C, the changes in the rate of oxygen consumption in response to a short-term temperature decrease to 25 degrees C or increase to 30 degrees C depended on the developmental stage and were most pronounced at the beginning of the studied period. During late embryonic and first 2.5 months of postembryonic development, the rate of oxygen consumption did not significantly differ after such temperature changes. The regulatory mechanisms formed during embryonic development are proposed to maintain the level of oxygen consumption during temperature changes.
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Temperatura / Tortugas Límite: Animals Idioma: Ru Revista: Izv Akad Nauk Ser Biol Asunto de la revista: BIOLOGIA Año: 2005 Tipo del documento: Article Pais de publicación: Rusia
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Temperatura / Tortugas Límite: Animals Idioma: Ru Revista: Izv Akad Nauk Ser Biol Asunto de la revista: BIOLOGIA Año: 2005 Tipo del documento: Article Pais de publicación: Rusia