INQUINOA 21218
INSTITUTO DE QUIMICA DEL NOROESTE
Unidad Ejecutora - UE
artículos
Título:
POTENTIAL APPLICATION OF NOTHERN ARGENTINE PROPOLIS TO CONTROL SOME PHYTOPATHOGENIC BACTERIA
Revista:
MICROBIOLOGICAL RESEARCH
Editorial:
ELSEVIER GMBH
Referencias:
Lugar: USA; Año: 2010
ISSN:
0944-5013
Resumen:
The antimicrobial activity of samples of Northern Argentine propolis against phytopatogenic bacteria was assessed and the most active samples were identified.
Minimal inhibitory concentration (MIC) values were determined by agar macrodilution and broth microdilution assays. Strong antibacterial activity was detected against Erwinia carotovora spp carotovora CECT 225, Pseudomonas syringae pvar tomato CECT 126, Pseudomonas corrugata CECT 124 and Xanthomonas campestris pvar vesicatoria CECT 792. The antimicrobial compound was identified as 2,4 dihydroxychalcone and was more active than the propolis ethanolic extract (MIC values of 0.5 to 1 mg ml-1 and 9.5 to 15 mg ml-1, respectively). Phytotoxicity assays were realized and the most active Argentine propolis extracts did not retard germination of lettuce seeds or the growth of onion roots in the range of concentrations where antibacterial activity was observed. Propolis solutions applied as sprays on tomato fruits infected with Pseudomonas syringae, reduced disease severity. Application of the Argentine propolis extracts diluted with water may be promising for the management of post harvest diseases of fruits and/or vegetables.
