Mesa L M, León-Pinto G
Cátedra de Micología, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
Invest Clin. 1993;34(2):85-98.
Morphological studies of eight species of fungus: Aspergillus flavus Microsporum canis, Epidermophyton floccosum, Curvularia lunata, Cladosporium carrionii, Natrassia mangífera (Edo. Scytalidium), Sporotrix schenckii y Rhizophus oligosporus, which belong to families Mucedinaceae, Dematiaceae and Mucoraceae have been carried out in support medium based in gum exudate from Laguncularia racemosa (mangle blanco). This native polimer contains galactose, arabinose, rhamnose, uronic acid and proteins. Nitrogen calcium and magnesium are microconstituents of the gum. An economical substrate which contained gum exudate (4%) and agar (1.5%) was used in these studies. The results obtained showed that gum exudate-agar medium (EGA) permits an adequate identification of the studied species, therefore, it is a possible substitute for Sabouraud. It is important to know that the gum exudate is a natural product, economical and easy to obtain.
对八种真菌进行了形态学研究，这些真菌包括黄曲霉、犬小孢子菌、絮状表皮癣菌、新月弯孢霉、卡氏枝孢霉、芒果拟盘多毛孢（原称：芒果痂圆孢）、申克孢子丝菌和少孢根霉，它们分属于毛霉科、暗色孢科和小克银汉霉科。研究采用了以拉贡木（白红树）渗出的树胶为基础培养基。这种天然聚合物含有半乳糖、阿拉伯糖、鼠李糖、糖醛酸和蛋白质。氮、钙和镁是该树胶的微量成分。这些研究使用了一种经济的培养基，其含有4%的渗出树胶和1.5%的琼脂。所得结果表明，树胶渗出物 - 琼脂培养基（EGA）能够对所研究的物种进行充分鉴定，因此，它有可能替代沙氏培养基。重要的是要知道，渗出树胶是一种天然产物，经济且易于获取。
