Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 358965
Title MgAtr7, a new type of ABC transporter from Mycosphaerella graminicola involved in iron homeostasis
Author(s) Zwiers, L.H.; Roohparvar, R.; Waard, M.A. de
Source Fungal Genetics and Biology 44 (2007)9. - ISSN 1087-1845 - p. 853 - 863.
Department(s) Laboratory of Phytopathology
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) major facilitator superfamily - atp-binding cassette - multidrug-resistance - siderophore biosynthesis - filamentous fungi - toxic compounds - gene-cluster - spore wall - wheat - virulence
Abstract The ABC transporter-encoding gene MgAtr7 from the wheat pathogen Mycosphaerella graminicola was cloned based upon its high homology to ABC transporters involved in azole-fungicide sensitivity. Genomic and cDNA sequences indicated that the N-terminus of this ABC transporter contains a motif characteristic for a dityrosine/pyoverdine biosynthesis protein. This makes MgAtr7 the first member of a new class of fungal ABC transporters harboring both a transporter and a biosynthetic moiety. A homologue of MgAtr7 containing the same biosynthetic moiety was only found in the Fusarium graminearum genome and not in any other fungal genome examined so far. The gene structure of both orthologous transporters is highly conserved and the genomic area surrounding the ABC transporter exhibits micro-synteny between M. graminicola and F. graminearum. Functional analyses revealed that MgAtr7 is neither required for virulence nor involved in fungicide sensitivity but indicated a role in maintenance of iron homeostasis.
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