Articles producció científica> Bioquímica i Biotecnologia

Sterol composition modulates the response of saccharomyces cerevisiae to iron deficiency

  • Identification data

    Identifier: imarina:9231332
    Authors:
    Jordá TRozès NPuig S
    Abstract:
    Iron is a vital micronutrient that functions as an essential cofactor in multiple biological processes, including oxygen transport, cellular respiration, and metabolic pathways, such as sterol biosynthesis. However, its low bioavailability at physiological pH frequently leads to nutritional iron deficiency. The yeast Saccharomyces cerevisiae is extensively used to study iron and lipid metabolisms, as well as in multiple biotechnological applications. Despite iron being indispensable for yeast ergosterol biosynthesis and growth, little is known about their interconnections. Here, we used lipid composition analyses to determine that changes in the pattern of sterols impair the response to iron deprivation of yeast cells. Yeast mutants defective in ergosterol biosynthesis display defects in the transcriptional activation of the iron-acquisition machinery and growth defects in iron-depleted conditions. The transcriptional activation function of the iron-sensing Aft1 factor is interrupted due to its mislocalization to the vacuole. These data uncover novel links between iron and sterol metabolisms that need to be considered when producing yeast-derived foods or when treating fungal infections with drugs that target the ergosterol biosynthesis pathway.
  • Others:

    Author, as appears in the article.: Jordá T; Rozès N; Puig S
    Department: Bioquímica i Biotecnologia
    URV's Author/s: Rozès, Nicolas Andre Louis
    Keywords: Upc2 Sterols Saccharomyces cerevisiae Iron deficiency Heme-binding protein Ergosterol Ecm22 Baker’s yeast Baker's yeast Aft1 yeast upc2 sterols saccharomyces cerevisiae resistance membranes iron deficiency ergosterol ecm22 biosynthesis aft1
    Abstract: Iron is a vital micronutrient that functions as an essential cofactor in multiple biological processes, including oxygen transport, cellular respiration, and metabolic pathways, such as sterol biosynthesis. However, its low bioavailability at physiological pH frequently leads to nutritional iron deficiency. The yeast Saccharomyces cerevisiae is extensively used to study iron and lipid metabolisms, as well as in multiple biotechnological applications. Despite iron being indispensable for yeast ergosterol biosynthesis and growth, little is known about their interconnections. Here, we used lipid composition analyses to determine that changes in the pattern of sterols impair the response to iron deprivation of yeast cells. Yeast mutants defective in ergosterol biosynthesis display defects in the transcriptional activation of the iron-acquisition machinery and growth defects in iron-depleted conditions. The transcriptional activation function of the iron-sensing Aft1 factor is interrupted due to its mislocalization to the vacuole. These data uncover novel links between iron and sterol metabolisms that need to be considered when producing yeast-derived foods or when treating fungal infections with drugs that target the ergosterol biosynthesis pathway.
    Thematic Areas: Plant science Mycology Microbiology (medical) Microbiology Farmacia Ecology, evolution, behavior and systematics Ciências biológicas iii Ciências biológicas ii
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: nicolasrozes@urv.cat
    Author identifier: 0000-0001-9718-3429
    Record's date: 2024-07-27
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.mdpi.com/2309-608X/7/11/901
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: J Fungi (Basel). 7 (11):
    APA: Jordá T; Rozès N; Puig S (2021). Sterol composition modulates the response of saccharomyces cerevisiae to iron deficiency. J Fungi (Basel), 7(11), -. DOI: 10.3390/jof7110901
    Article's DOI: 10.3390/jof7110901
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2021
    Publication Type: Journal Publications
  • Keywords:

    Ecology, Evolution, Behavior and Systematics,Microbiology,Microbiology (Medical),Mycology,Plant Science
    Upc2
    Sterols
    Saccharomyces cerevisiae
    Iron deficiency
    Heme-binding protein
    Ergosterol
    Ecm22
    Baker’s yeast
    Baker's yeast
    Aft1
    yeast
    upc2
    sterols
    saccharomyces cerevisiae
    resistance
    membranes
    iron deficiency
    ergosterol
    ecm22
    biosynthesis
    aft1
    Plant science
    Mycology
    Microbiology (medical)
    Microbiology
    Farmacia
    Ecology, evolution, behavior and systematics
    Ciências biológicas iii
    Ciências biológicas ii
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