Use of Gentamicine sulfate for the control of Pantoea agglomerans, contaminant of the in vitro multiplication of Solanumtuberosum L cv. Desiree
Journal Title: Biotecnología Vegetal - Year 2006, Vol 6, Issue 4
Abstract
Bacterial contamination is one of the principal problems of plant tissue culture. The use of natural or synthetic antimicrobial substances represent an alternative for it solution. In potato micropropagation bacterial contamination produce serious damages. In this paper the effect of Gentamicine sulfate on control of high frequently contaminant was evaluated. The microorganism was isolated from media culture of potato cv. Desirée in vitro plants in multiplication stage. Traditional tintorial, bioquemical and physiological test were performed for bacteria identification together with BIOLOG bacteria identification system. Besides, the minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of Gentamicine sulfate were determined and it antimicrobial and phytotoxic effect in multiplication stage were evaluated too. Pantoea agglomerans was identificated as potato contaminant and show sensibility to Gentamicine sulfate. The MIC was 0.625 mg.l -1 and the MBC was 1.25 mg.l -1 . The antibiotics controlled the contamination in the 80% of contaminated explants without phytotoxicity at 2.5 mg.l -1 .
Authors and Affiliations
Yelenys Alvarado-Capó, Nayanci Portal González, Mayra Acosta-Suárez, Mileidy Cruz-Martín, Blanca Pérez
Keywords
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