RT Journal Article T1 Overexpression of the White Opaque Switching Master Regulator Wor1 Alters Lipid Metabolism and Mitochondrial Function in Candida albicans A1 Hidalgo Vico, Susana A1 Casas, Josefina A1 García, Carolina A1 Lillo, M Pilar A1 Alonso Monge, Rebeca María Del Mar A1 Román González, Elvira A1 Pla Alonso, Jesús AB Candida albicans is a commensal yeast that inhabits the gastrointestinal tract of humans; increased colonization of this yeast in this niche has implicated the master regulator of the white-opaque transition, Wor1, by mechanisms not completely understood. We have addressed the role that this transcription factor has on commensalism by the characterization of strains overexpressing this gene. We show that WOR1 overexpression causes an alteration of the total lipid content of the fungal cell and significantly alters the composition of structural and reserve molecular species lipids as determined by lipidomic analysis. These cells are hypersensitive to membrane-disturbing agents such as SDS, have increased tolerance to azoles, an augmented number of peroxisomes, and increased phospholipase activity. WOR1 overexpression also decreases mitochondrial activity and results in altered susceptibility to certain oxidants. All together, these changes reflect drastic alterations in the cellular physiology that facilitate adaptation to the gastrointestinal tract environment. PB MDPI YR 2022 FD 2022-09-28 LK https://hdl.handle.net/20.500.14352/128924 UL https://hdl.handle.net/20.500.14352/128924 LA eng NO Hidalgo-Vico S, Casas J, García C, Lillo MP, Alonso-Monge R, Román E, Pla J. Overexpression of the White Opaque Switching Master Regulator Wor1 Alters Lipid Metabolism and Mitochondrial Function in Candida albicans. Journal of Fungi. 2022; 8(10):1028. https://doi.org/10.3390/jof8101028 NO Ministerio de Ciencia, Innovación y Universidades NO Comunidad de Madrid DS Docta Complutense RD 8 abr 2026