Metabolic, cardiac and ventilatory regulation in early larvae of the South African clawed frog, Xenopus laevis.
Description:
Early development of O2 chemoreception and hypoxic responses under normoxic (150 mmHg) and chronically hypoxic (110 mmHg) conditions were investigated in Xenopus laevis from hatching to 3 weeks post fertilization. Development, growth, O2 consumption, ventilatory and cardiac performance, and branchial neuroepithelial cells (NEC) density and size were determined. At 3 days post fertilization (dpf), larvae started gill ventilation at a rate of 28 ± 4 beats/min and showed increased frequency to 6…
more
Date:
December 2009
Creator:
Pan, Tien-Chien
Partner:
UNT Libraries