Drechslera gigantea, a fungal pathogen isolated from large crabgrass (Digitaria sanguinalis) and proposed as a potential mycoherbicide of grass weeds, produces phytotoxic metabolites in liq. and solid cultures. Ophiobolin A and 3 minor ophiobolins i.e., 6-epi-ophiobolin A, 3-anhydro-6-epi-ophiobolin A and ophiobolin I were obtained from the liq. culture broths. Other ophiobolins also appeared in cultures of this fungus and they were isolated together with the known ophiobolins B and J, and designed as ophiobolin E and 8-epi-ophiobolin J. They were characterized using spectroscopic methods. Some structure-activity relationship results are also discussed in this report.
Ophiobolin E and 8-epi-ophiobolin J produced by Drechslera gigantea, a potential mycoherbicide of grass weeds / Evidente, Antonio; Andolfi, Anna; Cimmino, Alessio; M., Vurro; M., Fracchiolla; R., Charudattan; A., Motta. - In: PHYTOCHEMISTRY. - ISSN 0031-9422. - STAMPA. - 67:(2006), pp. 2281-2287.
Ophiobolin E and 8-epi-ophiobolin J produced by Drechslera gigantea, a potential mycoherbicide of grass weeds
EVIDENTE, ANTONIO;ANDOLFI, ANNA;CIMMINO, ALESSIO;
2006
Abstract
Drechslera gigantea, a fungal pathogen isolated from large crabgrass (Digitaria sanguinalis) and proposed as a potential mycoherbicide of grass weeds, produces phytotoxic metabolites in liq. and solid cultures. Ophiobolin A and 3 minor ophiobolins i.e., 6-epi-ophiobolin A, 3-anhydro-6-epi-ophiobolin A and ophiobolin I were obtained from the liq. culture broths. Other ophiobolins also appeared in cultures of this fungus and they were isolated together with the known ophiobolins B and J, and designed as ophiobolin E and 8-epi-ophiobolin J. They were characterized using spectroscopic methods. Some structure-activity relationship results are also discussed in this report.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
