ISSN:
1573-1561
Keywords:
Beauveria
;
Ceratitis capitata
;
Medfly
;
conidial germination inhibitor
;
entomopathogenic fungus
;
fungal toxin
;
Hirsutella
;
Metarhizium
;
mycotoxin
;
phomalactone
;
Rhagoletis pomonella
;
Diptera
;
Tephritidae
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Dichloromethane extracts of culture broth from three strains of the entomopathogenic fungusHirsutella thompsonii var.synnematosa were toxic to two species of tephritid fruit fly and inhibited conidial germination in vitro in several other entomopathogenic fungi includingBeauveria bassiana, Tolypocladium spp., andMetarhizium anisopliae. A major metabolite, toxic to apple maggot,Rhagoletis pomonella, and inhibitory to conidial germination inB. bassiana, was isolated and identified as the antibiotic (+)-phomalactone, 6-(1-propenyl)-5,-6-dihydro-5-hydroxypyran-2-one. This is the first biologically active compound of low molecular weight isolated from the genusHirsutella.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02064437
Permalink