Abstract
Fungal surface hydrophobicity is involved in several functions in fungal growth and development. Water contact angles measurement has been used as a direct and simple approach for its characterisation in solid cultures. Microsphere adhesion assay is said to be the best method to assess cell hydrophobicity of filamentous fungi. This study aimed to apply these two methods to study hydrophobicity of Penicillium expansum and Penicillium brevicompactum grown as mycelial mats in solid culture, liquid culture and water biofilms. As result, both species in solid cultures were classified as hydrophobic with contact angles ≥90º, but in liquid cultures and water biofilms showed different levels of hydrophobicity when microsphere adhesion assay was applied. In addition, was found that biofilms have specific hydrophobic hyphae which may be involved in fungal ecological functions.
Published Version
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