Effect of sodium chloride and seawater in Sabouraud dextrose agar medium on some human-pathogenic fungi

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Abstract
Nine human-pathogenic fungal isolates from Nigeria were cultured on Sabouraud dextrose agar prepared with seawater and solutions containing different concentrations of sodium chloride. Growth was determined by measuring colony diameter after incubation for a maximum of 15 days at 30 °C. The fungi grew and sporulated on seawater, Sabouraud dextrose agar, and Sabouraud dextrose agar containing up to 3.4% NaCl. Growth, however, decreased with increasing concentrations of sodium chloride in the basal medium. Little or no growth occurred in media containing 6.4% NaCl.Aspergillus fumigatus Link, Candida albicans (Robin) Berkh, and Geotrichum candidum Link remained viable for up to 8 weeks in distilled water, 0.85 and 1.7% NaCl solutions, 5 weeks in 3.4% NaCl and sterile seawater, and 4 weeks in 6.8% NaCl.

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