Comparative study of ability for growth support and species differentiation by colony features on commercial chromogenic agar, Pourmedia Vi Candida and CHROMagar Candida.

Ability for growth support and species differentiation by colony features were compared on two commercial chromogenic agars, CHROMagar Candida and newly developed Pourmedia Vi Candida. Eleven strains (ten species) of standard strains and twenty-four isolates (five species) of clinical strains were tested. All isolates were grown on both agar plates in 48 hours at 35 degrees C, however, several species had not matured in 22 hours.

Electric field-induced orientation of L- and DL-phosphatidylcholine bilayers.

Membrane orientation induced by an alternating electric field has been examined for the L-enantiomer and racemic dipalmitoylphosphatidylcholine (DPPC) bilayers. The orientation effect was measured by bending curvature of hairpin-like deformation of the multilamellar cylindrical tubes with varying field-strength, frequency and tube size. It has been observed that both L- and DL-DPPC tubes are similar in the profiles of field-strength dependence and frequency dependence on the curvature deformation, but different in the deformed curvatures.