ANTIFUNGAL ACTIVITY ON BOTRYTIS CINEREA OF FLAVONOIDS AND DITERPENOIDS ISOLATED FROM THE SURFACE OF PSEUDOGNAPHALIUM SPP.

Cotoras, M.; Garcia C.; Lagos C.; Folch, C.; Mendoza L.

Abstract

The activity of the extracts obtained from the resinous exudates of the plants Pseudognaphalium cheiranthifolium, P. heterotrichium, P. robustum and P. vira vira on mycelial growth of the phytopathogenic fungus Botrytis cinerea was analyzed. Ten flavones, two flavanones and three diterpenoids isolated from these extracts were also tested for antifungal activity against B. cinerea. The extracts reduced mycelial growth and the inhibitory activity of the pure compounds was higher. Flavones with two hydroxyl groups on ring- A showed higher antifungal activity. Flavanones were inactive. The diterpenoid, 3b -hydroxy-kaurenoic acid was the most active compound of this set against mycelial growth of B. cinerea. This compound also retarded the germination of conidia of the fungus

Más información

Título según WOS: Antifungal activity on Botrytis cinerea of flavonoids and diterpenoids isolated from the surface of Pseudognaphalium spp.
Título según SCOPUS: Antifungal activity on botrytis cinerea of flavonoids and diterpenoids isolated from the surface of pseudognaphalium SPP
Título según SCIELO: ANTIFUNGAL ACTIVITY ON BOTRYTIS CINEREA OF FLAVONOIDS AND DITERPENOIDS ISOLATED FROM THE SURFACE OF PSEUDOGNAPHALIUM SPP.
Título de la Revista: BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA
Volumen: 46
Número: 4
Editorial: Sociedad Chilena de Química
Fecha de publicación: 2001
Página de inicio: 433
Página final: 440
Idioma: English
DOI:

10.4067/S0366-16442001000400007

Notas: ISI, SCIELO, SCOPUS