Nutrition of systemic and subcutaneous pathogenic fungi.

Gilardi, G L

doi:10.1128/mmbr.29.3.406-424.1965

Cited by 26 publications

(6 citation statements)

References 58 publications

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“…The yeast phase of S. schlenikii grows in rich media containing glucose as carbon source. Thiamine is an essen-tial growth factor for the yeast phase (50,139). Most of the studies on amino acid requirements have been done with media containing a complex organic nitrogen source, such as peptone or tryptone.…”

Section: Nutritional Requirementsmentioning

confidence: 99%

“…This review deals primarily with the biochemistry and recent findings on the molecular biology of H. capsulatum and related features of the process of differentiation. Other detailed reviews have already been published on the growth requirements (50), antigenic studies and chemistry of the cell wall (127,140), physiological studies (12, 80, 100), electron microscopic studies (37,38), and the epidemiology and clinical aspects of histoplasmosis (55,56,71,155,168).…”

Section: Introductionmentioning

confidence: 99%

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Dimorphism in Histoplasma capsulatum: a model for the study of cell differentiation in pathogenic fungi.

Maresca¹,

Kobayashi²

1989

Microbiological Reviews

108

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Section: Nutritional Requirementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dimorphism in Histoplasma capsulatum: a model for the study of cell differentiation in pathogenic fungi.

Maresca¹,

Kobayashi²

1989

Microbiological Reviews

108

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“…The morphological changes that take place during dimorphism have been studied in detail by Carbonell and Rodriguez (3,5), using both light and electron microscopes. The nutritional requirements of this fungus have also been studied extensively, but no differences between the needs of the two forms were detected (7). The temperature of the culture seems to be the only factor responsible for the dimorphism of P. brasiliensis (7,15).…”

mentioning

confidence: 99%

“…The nutritional requirements of this fungus have also been studied extensively, but no differences between the needs of the two forms were detected (7). The temperature of the culture seems to be the only factor responsible for the dimorphism of P. brasiliensis (7,15). Cell wall analysis of both Y-like and M forms has also been extensively done by Kanetsuna et al (10,12).…”

mentioning

confidence: 99%

Isolation and preliminary characterization of auxotrophic and morphological mutants of the yeastlike form of Paracoccidioides brasiliensis

Blas¹,

Centeno²

1977

J Bacteriol

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N-methyl-N'-nitro-N-nitrosoguanidine, which is known to be a very effective mutagen in many systems, was used to induce mutants in the yeastlike form of Paracoccidioides brasiliensis strain IVIC Pb9, an imperfect fungus. Forty-three auxotrophic and 27 prototrophic morphological mutants were isolated after treatment with 50 ug of nitrosoguanidine per ml in 0.1 M citrate buffer, pH 5.0. Auxotrophic mutants required primarily either amino acids, purines, or pyrimidines. Some auxotrophs were also morphological mutants. The main morphological difference from the parental strain was the texture or the color of the yeastlike colonies. Only one prototrophic morphological mutant differed in the size and form of the yeastlike cells when compared with the parental strain. Auxotrophic mutants were used in pairwise combinations to attempt heterokaryon formation without success.

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“…Sporotrichum schenckii, the etiologic agent of the chronic mycotic infection sporotrichosis, is probably the least studied of the pathogenic dimorphic fungi. It is characterized by a saprophytic mycelial and a parasitic yeastlike phase which differ in several respects both morphologically and nutritionally from the other similarly dimorphic fungal pathogens (12).…”

mentioning

confidence: 99%

Ultrastructural Studies on the Yeastlike and Mycelial Phases of Sporotrichum schenckii

1969

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Fine details of the internal and external morphology of the yeastlike and mycelial phases of the dimorphic fungal pathogen Sporotrichum schenckii as seen in ultrathin sections are described and illustrated by electronphotomicrography. Comparisons of yeastlike phase ultrastructure were made using two different methods of fixation and embedding. The internal morphology of the two forms of yeastlike S. schenckii was in many ways similar to that of similarly dimorphic fungi and yeasts studied by other authors. However, the use of the glutaraldehyde-osmium in agar fixation technique suggests the presence of an electron transparent capsular or slime layer with associated electron dense microfibrils to be present external to the cell wall of the yeastlike phase but not the mycelial phase. Mycelial phase S. schenckii was found to contain many of the internal microstructures reported for other filamentous dimorphic fungi. Conidia production in agitated liquid culture was found to be restricted since only rare sessile conidia were observed.

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Nutrition of systemic and subcutaneous pathogenic fungi.

Cited by 26 publications

References 58 publications

Dimorphism in Histoplasma capsulatum: a model for the study of cell differentiation in pathogenic fungi.

Dimorphism in Histoplasma capsulatum: a model for the study of cell differentiation in pathogenic fungi.

Isolation and preliminary characterization of auxotrophic and morphological mutants of the yeastlike form of Paracoccidioides brasiliensis

Ultrastructural Studies on the Yeastlike and Mycelial Phases of Sporotrichum schenckii

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