Fungicidal and binding properties of three plant peptides.
The fungicidal properties of plant seed peptides from Heuchera sanginea (Hs-AFP1), Raphanus sativus (EA-AFP2), and Impatiens balsamina (Ib-AMP3) were determined for the non-germinated and germinated conidia of Aspergillus flavus and Fusarium moniliforme. These peptides were weakly lethal for germinated but not for non-germinated conidia of A. flavus. Both non-germinated and germinated conidia of F. moniliforme were susceptible to these peptides. Overall, F. moniliforme was more susceptible than A. flavus to the peptides. The peptides bound strongly to chitin, mannan, galactocerebrosides, and sphingomyelin. Binding results varied for ergosterol, cholesterol, and beta1,3-glucan.
De Lucca
A J
AJ
Southern Regional Research Center, USDA, ARS, New Orleans 70124-4305, USA.adelucca@nola.srrc.usda.gov
Jacks
T J
TJ
Broekaert
W J
WJ