title: Inhibition assay of yeast cell walls by plasmon resonance Rayleigh scattering and surface-enhanced Raman scattering imaging.
abstract: We report on plasmon resonance Rayleigh scattering (PRRS) and surface enhanced Raman scattering (SERS) imaging for inhibition assay of yeast cell walls. This assay reveals that the proteins having alkali sensitive linkage bound to β1,3 glucan frameworks in cell walls are involved in SERS activity. The result is further confirmed by comparison of genetically modified cells and wild type cells. Finally, we find that PRRS and SERS spots do not appear on cell walls when daughter cells are enough smaller than parent ones, but appear when size of daughter cells are comparable to parent cells. This finding indicates the relationship between expression of the proteins that generate SERS spots and cell division. These results demonstrate that PRRS and SERS imaging can be a convenient and sensitive method for analysis of cell walls.
authors.affiliation: Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Kagawa 761-0395, Japan.
authors.forename: Kiran Manikantan
authors.initials: KM
authors.lastname: Syamala
authors.forename: Hiroko
authors.initials: H
authors.lastname: Abe
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Fujita
authors.forename: Kazuya
authors.initials: K
authors.lastname: Tomimoto
authors.forename: Vasudevanpillai
authors.initials: V
authors.lastname: Biju
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Ishikawa
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Ozaki
authors.forename: Tamitake
authors.initials: T
authors.lastname: Itoh
mesh_terms: D002473:Cell Wall / Q000187:drug effects* / Q000378:metabolism; D006026:Glycoside Hydrolases / Q000378:metabolism*; D006858:Hydrofluoric Acid / Q000494:pharmacology*; D012441:Saccharomyces cerevisiae / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D012967:Sodium Dodecyl Sulfate / Q000494:pharmacology*; D013059:Spectrum Analysis, Raman; D020349:Surface Plasmon Resonance; D013499:Surface Properties
chemical_list: D012967:Sodium Dodecyl Sulfate; D006026:Glycoside Hydrolases; C020105:endo-1,6-beta-glucanase; D006858:Hydrofluoric Acid