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Real‐time Imaging of the Surface Topography of Living Yeast Cells by Atomic Force Microscopy by François Ahimou; Ahmed Touhami; Yves F. Dufrêne is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract Atomic force microscopy (AFM) was used to image the surface topography of living __Saccharomyces cerevisiae__ cells at high resolution and to monitor enzyme digestion of the cell wall in real time. Apart from the presence of bud scars, the surface of native cells imaged in aqueous solution was homogeneous and smooth. Topographic images of the surface were recorded to a lateral resolution of 2 nm without significant modification of the surface morphology. Successive images of single cells were collected at fixed time intervals following addition of protease and amyloglucosidase solutions. Protease caused a progressive increase of surface roughness. Large depressions surrounded by protruding edges, ∼50 nm in height, were formed and attributed to the erosion of the mannoprotein outer layer. By contrast, no modification of the cell surface was noted upon addition of amyloglucosidase, which was consistent with the cell wall biochemical composition. These results indicate that AFM is a complementary tool to electron microscopy in that it allows the surface of living cells to be explored directly in real time. Copyright © 2002 John Wiley & Sons, Ltd.

Who reads Real‐time Imaging of the Surface Topography of Living Yeast Cells by Atomic Force Microscopy?

Author

François Ahimou; Ahmed Touhami; Yves F. Dufrêne

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); John Wiley & Sons Inc.; [Chichester]; [New York]: John Wiley & Sons, ©1985-; Wiley; Hindawi Limited (ISSN 0749-503X)

Published

2002

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)