caa a22 4500 445321075 CHVBK 20180317142704.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10534-010-9383-4 doi (NATIONALLICENCE)springer-10.1007/s10534-010-9383-4 Hydroxamate siderophores of the ectomycorrhizal fungi Suillus granulatus and S. luteus [Elektronische Daten] [Kurt Haselwandter, Gerlinde Häninger, Markus Ganzera] Despite indications that S. granulatus and S. luteus release iron-chelating compounds, the exact spectrum of ferric hydroxamates synthesized by these two Suillus species remained unclear. Hence the aim of this study was to identify all of the main siderophores produced by these two ectomycorrhizal fungal species under pure culture conditions. By means of HPLC and LC-MS analyses we show that S. granulatus releases cyclic and linear fusigen, ferrichrome, coprogen and triacetylfusarinine C into the nutrient medium, while S. luteus culture filtrates contain cyclic and linear fusigen, ferricrocin and coprogen. All of the different siderophores were identified on basis of reference compounds and their specific MS spectra which were recorded on a high resolution MS in positive electrospray ionisation mode. Initial HPLC separations were performed on a C-18 stationary phase, using an acidic eluent (0.1% formic acid in water and acetonitrile) in gradient mode. The potential of these two ectomycorrhizal fungal species to produce siderophores representing three different groups of hydroxamates is discussed in relation to its ecological significance. Springer Science+Business Media, LLC., 2010 Mycorrhizal symbiosis nationallicence Basidiomycota nationallicence Fungal siderophores nationallicence Hydroxamates nationallicence Iron mobilization nationallicence Haselwandter Kurt Institut für Mikrobiologie, Universität Innsbruck, Technikerstrasse 25, 6020, Innsbruck, Austria aut Häninger Gerlinde Institut für Mikrobiologie, Universität Innsbruck, Technikerstrasse 25, 6020, Innsbruck, Austria aut Ganzera Markus Institut für Pharmazie, Pharmakognosie, Universität Innsbruck, Innrain 52, 6020, Innsbruck, Austria aut BioMetals Springer Netherlands 24/1(2011-02-01), 153-157 0966-0844 24:1<153 2011 24 10534 https://doi.org/10.1007/s10534-010-9383-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10534-010-9383-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Haselwandter Kurt Institut für Mikrobiologie, Universität Innsbruck, Technikerstrasse 25, 6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Häninger Gerlinde Institut für Mikrobiologie, Universität Innsbruck, Technikerstrasse 25, 6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Ganzera Markus Institut für Pharmazie, Pharmakognosie, Universität Innsbruck, Innrain 52, 6020, Innsbruck, Austria aut NATIONALLICENCE 773 0- BioMetals Springer Netherlands 24/1(2011-02-01), 153-157 0966-0844 24:1<153 2011 24 10534 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer