COMPARATIVE NUCLEAR-MAGNETIC-RESONANCE STUDIES OF DIFFUSIONAL WATER PERMEABILITY OF RED-BLOOD-CELLS FROM DIFFERENT SPECIES .9. AUSTRALIAN FERAL CHICKEN AND DOMESTIC CHICKEN (GALLUS-DOMESTICUS)
G. Benga et al., COMPARATIVE NUCLEAR-MAGNETIC-RESONANCE STUDIES OF DIFFUSIONAL WATER PERMEABILITY OF RED-BLOOD-CELLS FROM DIFFERENT SPECIES .9. AUSTRALIAN FERAL CHICKEN AND DOMESTIC CHICKEN (GALLUS-DOMESTICUS), Comparative haematology international, 6(2), 1996, pp. 92-95
The diffusional water permeability (P-d) of Australian feral chicken a
nd Australian and European domestic chicken red blood cells (RBCs) was
measured by a doping nuclear magnetic resonance (NMR) technique. The
values of P-d were around 1.7 x 10(-3) cm/s at 15 degrees C, 2.0 x 10(
-3) cm/s at 20 degrees C, 2.5 x 10(-3) cm/s at 25 degrees C, 3.7 x 10(
-3) cm/s at 30 degrees C, 4.3 x 10(-3) cm/s at 37 degrees C, and 6.1 x
10(-3) cm/s at 42 degrees C, with no significant differences between
the three strains of chicken. There was no effect of p-chloromercuribe
nzene sulphonate on water diffusion. The activation energy of water di
ffusion was around 37 kJ/mol for all strains of chicken. These results
suggest that no changes in the RBC water permeability are correlated
with marked alterations in the habitat of chicken introduced to Austra
lia (and that membrane proteins play little role in the diffusion of w
ater across chicken RBC membrane).