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Revista Cubana de Medicina Tropical
Print version ISSN 0375-0760On-line version ISSN 1561-3054
Abstract
VALDES HERNANDEZ, Iliana del C.; MARTINEZ MACHIN, Gerardo; FERNANDEZ ANDREU, Carlos M. and ILLNAIT ZARAGOZI, María Teresa. Pigmentación de cepas de Cryptococcus neoformans sobre agar semilla de girasol. Rev Cubana Med Trop [online]. 2003, vol.55, n.2, pp.119-120. ISSN 0375-0760.
The production of melanin on a medium of sunflower seeds extract agar from 86 strains of Cryptococcus neoformans belonging to the Mycology Laboratory of "Pedro Kouri" Institute of Tropical Medicine was determined. 54.7 % of them produced colonies with dark brown pigment, 5.8 % a light pigment and 37.2 % an intermediate tonality. A fourth group was created for those strains with a true pigment (2.3 %). This paper is an important contribution to attain a better characterization of the strains from the collection of the institution and serves as a basis to further studies of pathogenicity and susceptibility.
Keywords : CRYPTOCOCCUS NEOFORMANS; HELIANTHUS; SEEDS; AGAR; IMMUNOLOGIC DEFICIENCY SYNDROMES.