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J Bacteriol. 1962 January; 83(1): 149-157
Copyright © 1962, The Williams & Wilkins Company. All Rights Reserved.

CONVERSION IN STRAINS OF HISTOPLASMA CAPSULATUM1

Leo Pine and Robert E. Webster

a Department of Microbiology, School of Medicine, Duke University, Durham, North Carolina

ABSTRACT

PINE, LEO (Duke University, Durham, N. C.) AND ROBERT E. WEBSTER. Conversion in strains of Histoplasma capsulatum. J. Bacteriol. 83:149–157. 1962—Photographs of mycelial elements taken at various time intervals from a single strain of Histoplasma capsulatum have shown the direct conversion of microconidia to yeast cells by polar and nonpolar budding, the formation of yeast cells by budding of hyphal cells, and the probable conversion of hyphal cells to yeast phase by monilial chain formation. In addition, studies of fixed-slide preparations of a second strain have indicated the formation of stalked yeast cells arising in a manner similar to that observed for microconidia formation but, apparently, by-passing the microconidial stage. These observations are discussed briefly in regard to temperature-induced changes in cell-wall synthesis during conversion.

FOOTNOTES

1 The studies reported in this article were supported by grants E-1866 from the National Institute of Allergy and Infectious Diseases, Public Health Service, and Public Health Service SF-64, Department of Health, Education, and Welfare, Bethesda, Maryland.

J Bacteriol. 1962 January; 83(1): 149-157
Copyright © 1962, The Williams & Wilkins Company. All Rights Reserved.



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