21-days old bw1 mutant adults raised at 29[o]C do not show significantly changes in PPL1 neurons, as compared to age-matched controls.
Sound-evoked compound action potentials in the antennal nerve are not significantly different from wild type in mutant flies. However, nonlinear mechanical amplification is significantly increased compared to wild type.
Mutant flies have significantly fewer synaptic vesicles in the terminals of the photoreceptor cells R1-R6 in the lamina. However, in contrast to the absolute numbers of synaptic vesicles, the profile density is not significantly different from wild type.
Male heterozygous and homozygous bw1 flies have an increased resistance to the anesthetic enflurane compared to wild-type controls, as judged by climbing ability. This effect is true whether enflurane resistance is measured in regular light or red light. bw1 male flies show no increased resistance to the anesthetic halothane compared to wild-type flies when climbing ability is measured in regular light. However, bw1 mutants show increased sensitivity to this anesthetic when climbing ability is measured in red light.
Affects the formation of drosopterins and reduces level of ommochrome in the eye.
Red pigments lacking. Xanthommatin mostly replaced by dihydroxanthommatin. Pigment granules present but somewhat smaller than in wild type.
Malpighian tubule colour: pale yellow. Testes colour: colourless.
Eye colour: brown. Eye colour: light brownish wine on emergence, darkening to garnet. Eye colour: white, with cn1. Eye colour: white, with st1. Eye colour: white, with v1.