Fatty acid metabolism in the ectomycorrhizal fungus Laccaria bicolor

2009 | journal article. A publication with affiliation to the University of Göttingen.

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​Fatty acid metabolism in the ectomycorrhizal fungus Laccaria bicolor​
Reich, M.; Göbel, C.; Kohler, A.; Buée, M.; Martin, F.; Feussner, I.   & Polle, A. ​ (2009) 
New Phytologist182(4) pp. 950​-964​.​ DOI: https://doi.org/10.1111/j.1469-8137.2009.02819.x 

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Authors
Reich, Marlis; Göbel, Cornelia; Kohler, Annegret; Buée, Marc; Martin, Francis; Feussner, Ivo ; Polle, Andrea 
Abstract
Summary - Here, the genome sequence of the ectomycorrhizal basidiomycete Laccaria bicolor was explored with the aim of constructing a genome‐wide inventory of genes involved in fatty acid metabolism. - Sixty‐three genes of the major pathways were annotated and validated by the detection of the corresponding transcripts. Seventy‐one per cent belonged to multigene families of up to five members. In the mycelium of L. bicolor, 19 different fatty acids were detected, including at low concentrations palmitvaccenic acid (16:1(11Z)), which is known to be a marker for arbuscular mycorrhizal fungi. - The pathways of fatty acid biosynthesis and degradation in L. bicolor were reconstructed using lipid composition, gene annotation and transcriptional analysis. Annotation results indicated that saturated fatty acids were degraded in mitochondria, whereas degradation of modified fatty acids was confined to peroxisomes. - Fatty acid synthase (FAS) was the second largest protein annotated in L. bicolor. Phylogenetic analysis indicated that L. bicolor, Ustilago maydis and Coprinopsis cinerea have a vertebrate‐like type I FAS encoded as a single protein, whereas in other basidiomycetes, including the human pathogenic basidiomycete Cryptococcus neoformans, and in most ascomycetes FAS is composed of the two structurally distinct subunits α and β.
Issue Date
2009
Journal
New Phytologist 
Organization
Fakultät für Forstwissenschaften und Waldökologie ; Büsgen-Institut ; Abteilung Forstbotanik und Baumphysiologie 
ISSN
0028-646X
Language
English

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