Fecha/hora: 01/06/2024 16:36:20

Biblioteca(s): | INIA Las Brujas.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | C - 0
Fecha corriente: | 24/10/2014
Fecha de la última actualización: | 24/06/2021
Autoria: | LARRAÑAGA, P.; DIAZ, P.; CABRERA, A.; ALEM, D.; ALMEIDA SOUZA, A.L.; GIOVANNI DE SIMONE, S.; DALLA RIZZA, M.
Afiliación: | PATRICIA LUCIA LARRAÑAGA LUZ, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; PAOLA ALEXANDRA DIAZ DELLAVALLE, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; ANDREA CECILIA CABRERA BARRIOS, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; DIEGO MARTIN ALEM GLISON, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MARCO DALLA RIZZA VILARO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay.
Título: | Activity of naturally derived antimicrobial peptides against filamentous fungi relevant for agriculture .
Año de publicación: | 2012
Fuente/Imprenta: | Sustainable Agriculture Research, 2012, v. 1, no.2, p. 211-221.
ISSN: | 1927-0518
DOI: | http://dx.doi.org/10.5539/sar.v1n2p211
Idioma: | Inglés
Notas: | Article history: Received: June 12, 2012 / Accepted: July 10, 2012 / Online Published: July 23, 2012.

Contenido:

ABSTRACT.

The search for environmentally biocompatible and cost-effective methods to control filamentous fungi in agriculture is becoming increasingly urgent. In vitro antimicrobial activity of three synthetic peptides was investigated against some filamentous fungi with agricultural relevance. The peptides were an analog of Temporin called Temporizina, a fragment from Pleurocidin termed Plc-2, and a peptide identified from sesame seeds named Pses3. Antimicrobial activity of these peptides towards filamentous fungi has not been previously reported. Seven plant pathogenic or mycotoxigenic fungal species, isolated from plant tissues were assayed: Alternaria solani, Colletotrichum gloesporioides, Fulvia fulvum, Fusarium oxisporum, Aspergillus niger, A. 
ochraceus and Penicillium digitatum. Values of Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC) were determined and compared with the commercially available fungicide Captan as a positive control. The peptides showing greatest inhibition were Pses3 and Plc-2 and C. 
gloesporioides was the most sensitive of the evaluated fungi. The MIC values for Plc-2 and Pses3 peptides ranged from 0.64 µM to 10.25 µM. These values were much lower than those observed for Captan, suggesting the potential of these peptides as fungicides. In particular, Pses3 is a novel peptide derived from sesame seeds not reported in databases.

Palabras-Clave: | PÉPTIDOS ANTIMICROBIANOS.
Thesagro: | ACTIVIDAD ANTIMICROBIANA; BIOTECNOLOGIA; PÉPTIDOS.
Categoría del tema: | F30 Genética vegetal y fitomejoramiento
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/3626/1/Dalla-Rizza-M.-2012.-Sust.Agr.Res..12-p.211-221.pdf
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (100216-1) - PXI - AP - DD - PP/SUST.AGR.RES./2012 -  -  - DIS