Identification of the Prototheca Species by Immunofluorescence
Abstract
Studies were carried out to develop fluorescent antibody reagents for the identification of the Prototheca species and for their differentiation from morphologically similar fungi of various genera in formalin-fixed tissues. Antisera against representative isolates of P. filamenta, P. moriformis, P. stagnora, P. wickerhamii, and P. zopfii were produced in rabbits. Antiglobulins, labeled with fluorescein-isothiocyanate that intensely stained most cells of the homologous species, were selected for use as potential diagnostic reagents. By adsorbing the conjugates with selected heterologous cross-staining protothecae, reagents that were both sensitive and specific were obtained. Evaluation of the adsorbed conjugates with sections of tissue infected with protothecae, sections of tissue infected with morphologically similar fungi, and cultures of protothecae showed that these reagents are useful for the rapid and reliable identification of the Prototheca species.
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© American Society for Microbiology.
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Published online: 1 June 1973
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1973. Identification of the Prototheca Species by Immunofluorescence. Appl Microbiol 25:.
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