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The nutritional requirements of the mycelial and yeast-like phases of the dimorphic fungus Paracoccidioides brasiliensis, a human pathogen, were investigated. For all nine isolates tested, mycelial cells were prototrophic, whereas yeast-like cells required a sulfur-containing amino acid for growth. Moreover, changing the source of nitrogen greatly affected the morphology of the yeast-like cells. Les exigences nutritionnelles des phases levure et filamenteuse du champignon dimorphique Paracoccidioides brasiliensis, champignon pathogène de l'homme, ont été étudiées. Pour les 9 souches testées, les filaments sont prototrophiques alors que les levures ont besoin d'un acide arniné soufré pour leur croissance. De plus, il a été observé que la nature de la source d'azote modifie de façon notable la morphologie des levures.
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Paris et al. (1985) studied this question.
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