Abstract
Kaufman, Leo(Communicable Disease Center, Atlanta, Ga.),and Brenda Brandt. Fluorescent-antibody studies of the mycelial form ofHistoplasma capsulatumand morphologically similar fungi. J. Bacteriol.87:120–126. 1964.—Fluorescent-antibody reagents were developed to differentiate the mycelial form of the pathogen,Histoplasma capsulatum, from several morphologically similar but saprophytic species of the generaSepedoniumandChrysosporium. Cross-staining and adsorption procedures revealed antigenic relationships among certain species of these three genera and other fungi. The significance of these observations to the diagnostician and taxonomist is discussed.