NADPH-diaphorase positive neurons in the retina of Bufo marinus: Selective staining of bipolar and amacrine cells

C. Straznicky, R. Gábriel

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Abstract

Unfixed retinal tissues of adult Bufo marinus were reacted for NADPH-diaphorase histochemistry that resulted in selective staining of populations of bipolar and amacrine cells. The number of stained bipolar cells in the retina was estimated to be 233,660 ± 38,960 (mean ± S.D.). These cells were non-uniformly distributed across the retina with the highest density of 4,308 cells/mm2 along the visual streak decreasing to lowest density of 1,378 cells/mm2 at the dorsal and ventral poles of the retina. The stained bipolar cells represented a morphologically uniform population. The number of labelled amacrine cells in the retina amounted to 3,116 ± 405 including 251 cells that were displaced into the ganglion cell layer. Labelled amacrine cells were also unevenly distributed; with no stained cells in the retinal centre from where the density increased steadily to 72 cells/mm2 in the retinal periphery. NADPH-diaphorase positive amacrine cells were classified on the basis of their dendritic arborization pattern into three morphological types: 1) narrow-field cells both at the periphery and the centre of the retina; 2) wide-field amacrine cells, and 3) amacrines with eccentric medium-sized dendritic field. The results of this study provide evidence for the presence of NADPH-diaphorase containing neurons in the anuran retina. Furthermore, this is the first report on the selective staining of bipolar cells for NADPH-diaphorase in the vertebrate retina.

Original languageEnglish
Pages (from-to)213-220
Number of pages8
JournalArchives of Histology and Cytology
Volume54
Issue number2
Publication statusPublished - 1991

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Bufo marinus
Amacrine Cells
NADPH Dehydrogenase
Retina
Staining and Labeling
Neurons
Neuronal Plasticity
Ganglia
Population
Vertebrates

ASJC Scopus subject areas

  • Anatomy
  • Histology

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NADPH-diaphorase positive neurons in the retina of Bufo marinus : Selective staining of bipolar and amacrine cells. / Straznicky, C.; Gábriel, R.

In: Archives of Histology and Cytology, Vol. 54, No. 2, 1991, p. 213-220.

Research output: Contribution to journalArticle

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