Summary
Falck's method for the demonstration of monoamines was applied to the flatworm Schistosoma mansoni. Whole mount preparations and sections of frozen dried specimens showed that a primary catecholamine is present in four pairs of large nerve cells and in two longitudinal fiber tracts showing varicosities. Smaller neurons were found along these tracts. They are united by commissures and give off many branches which end in small dilatations.
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Contribution number 14 from the Schistosomiasis Research Unit, Institute of Biological Sciences, Federal University of Minas Gerais, Brazil. This study has been supported by research grants from the U.S. Army (DAAC 19-70-G-0023 and DAHG-70-G-0028), CAPES and Conselho Nacional de Pesquisas, Brazil. For technical assistance we thank Mr. Rubens Miranda, technician supported by the “Conselho Nacional de Pesquisas” of Brazil.
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Machado, C.R.S., Machado, A.B.M. & Pellegrino, J. Catecholamine-containing neurons in Schistosoma mansoni . Z.Zellforsch. 124, 230–237 (1972). https://doi.org/10.1007/BF00335681
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DOI: https://doi.org/10.1007/BF00335681