Photoreceptors in a primitive mammal, the South American opossum, Didelphis marsupialis aurita: characterization with anti-opsin immunolabeling.

@article{Ahnelt1995PhotoreceptorsIA,
  title={Photoreceptors in a primitive mammal, the South American opossum, Didelphis marsupialis aurita: characterization with anti-opsin immunolabeling.},
  author={Peter K. Ahnelt and Jan Nora Hokoç and P{\'a}l R{\"o}hlich},
  journal={Visual neuroscience},
  year={1995},
  volume={12 5},
  pages={793-804}
}
The retinas of placental mammals appear to lack the large number and morphological diversity of cone subtypes found in diurnal reptiles. We have now studied the photoreceptor layer of a South American marsupial (Didelphis marsupialis aurita) by peanut agglutinin labeling of the cone sheath and by labeling of cone outer segments with monoclonal anti-visual pigment antibodies that have been proven to consistently label middle-to-long wavelength (COS-1) and short-wavelength (OS-2) cone… CONTINUE READING
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