Abstract
Fungi can adapt to a wide range of environmental stresses in the wild and host milieu by employing their plastic genome and great diversity in morphology. Among different adaptive strategies, mechanical stimuli, such as changes in osmotic pressure, surface remodeling, hyphal formation, and cell divisions, could guide the physical cues into physiological responses through a complex signaling network. While fungal pathogens require a pressure-driven force to expand and penetrate host tissues, quantitatively studying the biophysical properties at the host-fungal interface is critical to understand the development of fungal diseases. Microscopy-based techniques have enabled researchers to monitor the dynamic mechanics on fungal cell surface in responses to the host stress and antifungal drugs. Here, we describe a label-free, high-resolution method based on atomic force microscopy, with a step-by-step protocol to measure the physical properties in human fungal pathogen Candida albicans.
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