Effects of environmental temperature on oxygen diffusion capacity during post-natal development in the altricial rodent, Phyllotis darwini

Estudiamos la plasticidad fenotipica del desarrollo de las estructuras respiratorias responsables del intercambio de oxigeno en el roedor altricial Phyllotis darwini. Investigamos los parametros morfologicos del pulmon en animales aclimatados a alta temperatura (bajo requerimiento energetico de termorregulacion: 30 °C) y a baja temperatura (alto requerimiento: 15 °C) en diferentes etapas del desarrollo. Encontramos que la temperatura ambiental no afecto el volumen pulmonar, el grosor de la barrera alveolo-capilar ni la densidad de superficie alveolar. Y en consecuencia, tampoco la capacidad de difusion de oxigeno. Aun cuando Phyllotis darwini mostro los cambios respiratorios esperados de acuerdo a su desarrollo ontogenico, las estructuras evaluadas no fueron afectadas por la aclimatacion termica durante el desarrollo postnatal.

• Publication year

  2009

• Venue

  Revista Chilena de Historia Natural

• Publication date

  2009-03-01

• Fields of study

  Not labeled

• Identifiers
  DOI 10.4067/S0716-078X2009000100010
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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