Advances in Biomedical Spectroscopy

0425094 - ÚOCHB 2014 NL eng M - Monography Chapter
Bednárová, Lucie - Palacký, J. - Bauerová, Václava - Hrušková-Heidingsfeldová, Olga - Pichová, Iva - Mojzeš, P.
Raman microspectroscopy of the yeast vacuoles.
Advances in Biomedical Spectroscopy. Amsterdam: IOS Press, 2013 - (Marques, M.; Batista de Carvalho, L.; Haris, P.), s. 73-77. Spectroscopy of Biological Molecules, 7. ISBN 978-1-61499-183-0
Institutional research plan: CEZ:AV0Z40550506
Keywords : Candida albicans * chemical composition * living cell * polyphosphate * Raman microspectroscopy * vacuole * yeast
Subject RIV: CE - Biochemistry

In the present work, real ability of a confocal Raman microspectroscopy to monitor chemical composition of the vacuoles within living yeast cells was investigated and critically assessed. Simple, economical and practical protocols of the yeast immobilization suitable for less laborious, high-throughput and spatially-resolved Raman measurements were tested for their possible impacts on physiological states and viability of the cells. We have demonstrated that acquiring Raman spectra from statistically sound sets of immobilized cells and employing advanced multivariate methods for spectral analysis, the chemical composition of the yeast vacuoles can be reliably studied. The most easily and accurately quantifiable seems to be the concentration of polyphosphates which can be unambiguously identified due to unmistakable Raman features. Our approach can be useful for routine, label-free and non-invasive monitoring of the chemical composition of the vacuoles of living yeasts exposed to various stress factors, the information important in biomedical research of pathogens.
Permanent Link: http://hdl.handle.net/11104/0231032