Although longitudinal sections of buds incubated with the inducer for only 10 min or 30 min were analyzed for silver grain density, cleavage products of the hexapeptide might have already occurred after these short exposures.
Autoradiographic analysis revealed silver grains in all longitudinal sections of buds, regardless of whether they were exposed to 14C-dansyl-GPGGPA for 10 min or for 32 h [ILLUSTRATION FOR FIGURE 2A OMITTED].
Silver grains were found in all of these cell types.
Silver grains were discovered in longitudinal sections of buds that had been incubated with the inducer for only 10 min.
Silver staining of the gills and ultrastructural localization of silver grains
in the epicuticle, endocuticle, and apical region of the epithelial cells suggest that the gill epithelium of D.
But if the image is blown up too large--without increasing the number of silver grains
that compose the image--it becomes distorted.
A similar effect has been seen in gold-plated silver grains
, he says, where the gold forms a layer that protects the silver from melting.
3H]]leucine which showed most silver grains
to be consistently overlying the large presynaptic terminals (4).
Film grain refers to a distracting visual pattern seen in photographs that is caused by "clumping" of silver grains
in an original photographic image.
Malin amplifies the images by passing diffuse light through the emulsion onto a piece of high-contrast film, greatly increasing the apparent size of the original silver grains