Linear fusigen as the major hydroxamate siderophore of the ectomycorrhizal Basidiomycota Laccaria laccata and Laccaria bicolor
| Autor: | Kurt Haselwandter, Markus Ganzera, Graeme J. Nicholson, Gerlinde Häninger, Hubertus Haas, Günther Winkelmann |
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| Rok vydání: | 2013 |
| Předmět: |
Fusarium
Laccaria laccata Siderophore Iron Siderophores Mass spectrometry Hydroxamic Acids Ferric Compounds Plant Roots General Biochemistry Genetics and Molecular Biology Mass Spectrometry Biomaterials Laccaria Laccaria bicolor Botany Antibiosis Mycorrhiza Chromatography High Pressure Liquid biology Molecular mass Metals and Alloys Basidiomycota biology.organism_classification Culture Media Molecular Weight Tracheophyta General Agricultural and Biological Sciences Ferrichrome |
| Zdroj: | Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine. 26(6) |
| ISSN: | 1572-8773 |
| Popis: | A screening for siderophores produced by the ectomycorrhizal fungi Laccaria laccata and Laccaria bicolor in synthetic low iron medium revealed the release of several different hydroxamate siderophores of which four major siderophores could be identified by high resolution mass spectrometry. While ferricrocin, coprogen and triacetylfusarinine C were assigned as well as other known fungal siderophores, a major peak of the siderophore mixture revealed an average molecular mass of 797 for the iron-loaded compound. High resolution mass spectrometry indicated an absolute mass of m/z = 798.30973 ([M + H](+)). With a relative error of Δ = 0.56 ppm this corresponds to linear fusigen (C33H52N6O13Fe; MW = 797.3). The production of large amounts of linear fusigen by these basidiomycetous mycorrhizal fungi may possibly explain the observed suppression of plant pathogenic Fusarium species. For comparative purposes Fusarium roseum was included in this study as a well known producer of cyclic and linear fusigen. |
| Databáze: | OpenAIRE |
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