Chemical constituents of Papulaspora immersa, an endophyte from Smallanthus sonchifolius (Asteraceae), and their cytotoxic activity.

@article{Gallo2010ChemicalCO,
  title={Chemical constituents of Papulaspora immersa, an endophyte from Smallanthus sonchifolius (Asteraceae), and their cytotoxic activity.},
  author={Margareth Borges Coutinho Gallo and Bruno Co{\^e}lho Cavalcanti and Francisco Washington Ara{\'u}jo Barros and Manoel Odorico de Moraes and Let{\'i}cia V Costa-Lotufo and Cl{\'a}udia Pessoa and Jairo Kenupp Bastos and M{\^o}nica Tallarico Pupo},
  journal={Chemistry & biodiversity},
  year={2010},
  volume={7 12},
  pages={2941-50}
}
Papulaspora immersa H. H. Hotson was isolated from roots and leaves of Smallanthus sonchifolius (Poepp. and Endl.) H. Rob. (Asteraceae), traditionally known as Yacon. The fungus was cultured in rice, and, from the AcOEt fraction, 14 compounds were isolated. Among them, (22E,24R)-8,14-epoxyergosta-4,22-diene-3,6-dione (4), 2,3-epoxy-1,2,3,4-tetrahydronaphthalene-c-1,c-4,8-triol (10), and the chromone papulasporin (13) were new secondary metabolites. The spectral data of the known natural… CONTINUE READING