Artículos de revistas
Effects of environmental temperature on oxygen diffusion capacity during post-natal development in the altricial rodent, Phyllotis darwini
Fecha
2009Registro en:
Revista Chilena de Historia Natural, Volumen 82, Issue 1, 2018, Pages 153-162
07176317
0716078X
10.4067/S0716-078X2009000100010
Autor
Canals Lambarri, Mauricio
Figueroa, Daniela P.
Miranda, Jessica P.
Sabat Kirkwood, Alejandro Pablo
Institución
Resumen
In this contribution we studied the developmental phenotypic plasticity of respiratory structures involved in the exchange of gases in an altricial rodent, the leaf-eared mouse (Phyllotis darwini). We studied morphological pulmonary parameters of warm (30 °C) and cold acclimated animals 15 °C) at different developmental stages. We found that acclimation treatments did not affect neither lung volume, the alveolocapillary barrier thickness nor the respiratory surface density. In consequence the oxygen diffusion capacity was not affected. Although Phyllotis darwini exhibited structural respiratory changes expected by its ontogenetic development, these structures were not affected by thermal acclimation during the post-natal development.