Table 4.
Identified secondary metabolites in dual culture (barley-malt medium with Hymenoscyphus fraxineus) of the surveyed strains listed in Table 3. Identified compounds: 5: phomopsidin; 6: 10-hydroxyphomopsidin; 8: rickiol A; 9: orthosporin; 10: daldinone B; 11: 1,8-dimethoxynaphtahlene; 13: 5-methyl-mellein. Identified stromal azaphilone groups detected in culture: MI = Mitorubrin type; NA = Naphthalene type; DA = Daldinin type. For chemical structures, see Fig. 8.
| Organism | Strain | Culture metabolites | Stromal metabolites | |||
|---|---|---|---|---|---|---|
| 5 | 6 | Others | MI | NA | ||
| Hypoxylon cercidicola | MUCL 54180 | + | – | 13 | – | – |
| Hypoxylon fuscum | STMA 13090 | – | – | 11, 13 | – | + |
| Hypoxylon texense | DSM 107933 | – | – | – | + | – |
| Hypoxylon crocopeplum | CBS 119004 | – | – | – | + | – |
| Hypoxylon perforatum | MUCL 47187 | + | – | – | + | – |
| Hypoxylon petriniae | MUCL 53756 | + | – | – | – | – |
| Hypoxylon aff. rubiginosum | MUCL 57724 | + | + | – | + | – |
| Hypoxylon rubiginosum | MUCL 47152 | + | – | 9, 10 | – | + |
| Hypoxylon rubiginosum | MUCL 47970 | + | – | 9, 10 | – | + |
| Hypoxylon guilanense | MUCL 57726 | – | – | – | – | – |
| Hypoxylon carneum | MUCL 54177 | – | – | 10 | – | – |