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Aspergillus fumigatus forms Biofilms on bronchial epithelial cells in vitro. View article

A SEM of A. fumigatus of biofilm surface on bronchial epithelial cells at 48 h showing parallel-packed hyphae and ECM embedded in the hyphal network.	B Confocal scanning laser microscopy - (CLSM). CAAF stained showing the hyphal network in contact with extracellular matrix. The polysaccharides of the ECM and fungal cell walls were stained by CAAF (concanavalin A-Alexa Fluor 488 conjugate).
	C Confocal scanning laser microscopy (CLSM), using CAAF(green) Fun1(red) stained biofilm. The red color of the FUN 1 cell stain was localized in dense aggregates in the cytoplasm of metabolically active cells. Thus, areas of red fluorescence represented metabolically active cells, and green fluorescence indicated cell wall-like polysaccharides, while yellow areas represented dual staining.

Images kindly donated by Frank-Michael C. Müller, Pediatric Pulmonology, Cystic Fibrosis Centre and Infectious Diseases, Department of Pediatrics III, University of Heidelberg, Im Neuenheimer Feld 430, D-69120 Heidelberg, Germany.