Antifungal Activity of a Protean Extract from Amaranthus hypochondriacus Seeds

Plants have developed a variety of protection mechanismswhich include the synthesis of both, low molecular weight secondarymetabolites and macromolecules as proteins and peptides withantimicrobial activity. There are previous reports of antifungal peptidesfound on the seeds of other Amaranthus speci...

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Detalles Bibliográficos
Autores: Lina Rivillas Acevedo, Manuel Soriano García
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2007
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Redalyc-UNAM
OAI Identifier:oai:redalyc.org:47551302
Acceso en línea:https://www.redalyc.org/articulo.oa?id=47551302
Access Level:acceso abierto
Palabra clave:Química
peptides
Antifungal activity
growth inhibition assay
Amaranthus hypochondriacus
Descripción
Sumario:Plants have developed a variety of protection mechanismswhich include the synthesis of both, low molecular weight secondarymetabolites and macromolecules as proteins and peptides withantimicrobial activity. There are previous reports of antifungal peptidesfound on the seeds of other Amaranthus species, so it is veryprobable that these kind of compounds are present in the A.hypochondriacus seeds. This was confirmed by the antifungal activityof a protean extract from A. hypochondricus against such pathogenicfungi as Alternaria alternata, Fusarium solani, Candida albicans,Fusarium oxysporum, Trichoderma sp. and Aspergillus ochraceus.The fungal growth inhibition was evaluated using the “poisoned”agar and the microspectrophotometry tests.