Abstract：
:Fomannoxin is a biologically active benzohydrofuran, which has been suggested to be involved in the pathogenicity of the root rotting fungus Heterobasidion annosum sensu lato. The biosynthesis of fomannoxin was investigated through an isotopic enrichment study utilizing [1-¹³C]glucose as metabolic tracer. ¹³C NMR spectroscopic analysis revealed the labeling pattern and showed that the isoprene building block originates from the mevalonic acid pathway, whereas the aromatic motif is formed via the shikimic acid route by elimination of pyruvate from chorismic acid. A natural product, 4-hydroxy-3-(3-methylbut-2-enyl)benzaldehyde, was isolated and characterized, and was suggested to be a key intermediate in the biosynthesis of fomannoxin and related secondary metabolites previously identified from the H. annosum fungal species complex.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Hansson D,Menkis A,Olson K,Stenlid J,Broberg A,Karlsson Mdoi
10.1016/j.phytochem.2012.08.008subject
Has Abstractpub_date
2012-12-01 00:00:00pages
31-9eissn
0031-9422issn
1873-3700pii
S0031-9422(12)00375-5journal_volume
84pub_type
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