Sphingolipids of plant pathogenic fungi

Lucia Gharwalová, Markéta Kulišová, Anastasiia Vasyliuk, Helena Marešová, Andrea Palyzová, Linda Nedbalová and Irena Kolouchová
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Lucia Gharwalová: Department of Biotechnology, University of Chemical Technology Prague, Prague, Czech Republic
Markéta Kulišová: Department of Biotechnology, University of Chemical Technology Prague, Prague, Czech Republic
Anastasiia Vasyliuk: Department of Biotechnology, University of Chemical Technology Prague, Prague, Czech Republic
Helena Marešová: Institute of Microbiology, The Czech Academy of Sciences, Prague, Czech Republic
Andrea Palyzová: Institute of Microbiology, The Czech Academy of Sciences, Prague, Czech Republic
Linda Nedbalová: Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
Irena Kolouchová: Department of Biotechnology, University of Chemical Technology Prague, Prague, Czech Republic

Plant Protection Science, 2021, vol. 57, issue 2, 134-139

Abstract: Glycosphingolipids in filamentous fungi are significant components of the plasma membrane and are vital for different cellular processes, such as growth, morphological transition or signal transduction. Fungal growth inhibitors targeting glycosylinositolphosphoceramide (GIPCs) biosynthesis or antifungal compounds binding to GIPCs present in membranes could present a safe way of preventing fungal growth on crops since GIPCs are not present in mammalian cells. Mass spectrometry-based shotgun lipidomics was used to analyze sphingolipids of 11 fungal strains isolated from plant material. Molecular species with inositol ceramides containing zero to five carbohydrates were identified. Differences in the amount of individual molecular species were influenced by the taxonomic affiliation. All tested strains exhibited a relatively high content (more than 40 mol.%) of GIPCs with three and more saccharides attached to the polar head. It could be assumed that the sphingolipid profiles of the tested plant pathogens would be an adaptation mechanism to antifungal plant defensins.

Keywords: defensin; filamentous fungi; glycosylinositolphosphoceramides; high resolution tandem electrospray mass spectrometry; Vitis vinifera (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:57:y:2021:i:2:id:131-2020-pps

DOI: 10.17221/131/2020-PPS

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