Experimental Chronic Cutaneous Blastomycosis in Monkeys

The Dimorphism Phenomenon in Yeasts

“…By studying yeast phase formation of B. dermatitidis in a chemically defined semifluid medium, Salvin (142) showed that temperature was the most important environmental factor controlling dimorphism in this organism. No amino acid, carbohydrate, nor growth-substance tested was found to be an essential accessory factor for the growth of the yeast phase at 37 C. This evidence was in accord with the findings of previous workers (36,62,84,93,108,111,130). Nickerson and Edwards (111) proposed the term "thermal dimorphism" to characterize this phenomenon.…”

Studies of the Role of Fungi in Pulmonary Disease: I. Cross Reactions of Histoplasmin

“…Many investigators have observed the unreliability of fungus antigens when used as diagnostic agents in skin testing (4,6,8,9). One cannot accept the specificity of a fungus antigen until it has been tested against other mycoses.…”

“…Personal communication 4. The pooling of cultures is a customary procedure in the preparation of coccidioidin.This content downloaded from 159.178.22.27 on Tue, 14 Jun 2016 21:57:54 UTC All use subject to http://about.jstor.org/terms…”