Biotecnología Vegetal (Jul 2018)

<i>In vitro</i> antagonist of <i>Bacillus</i> spp. strains against <i>Fusarium oxysporum</i> f. sp. cubense

  • Liliana Leyva Rodríguez,
  • Mileidy Cruz-Martín,
  • Mayra Acosta-Suárez,
  • Tatiana Pichardo,
  • Idalmis Bermúdez-Caraballoso,
  • Yelenys Alvarado-Capó

Journal volume & issue
Vol. 17, no. 4

Abstract

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Fusarium wilt, caused by the fungus Fusariumoxysporum f. sp. cubense (Foc) is a diseases that most affect the plantains and bananas (Musa spp.) cultivation. Until now, the chemical and cultural methods used for its management have been ineffective. However, a promising alternative could be the use of antagonist bacteria. This work had the objective of determining the antagonistic capacity of Bacillus spp. strains against Foc race 1. By means of dual culture, the antagonistic activity of the bacterial strains was determined and quantified, as well as their capacity to produce volatile and diffused antifungal metabolites. Of the 17 strains studied, nine showed antifungal capacity. Among then, one did not produce either diffused or volatile (CCIBP-B4), seven presented diffused metabolites and only one (CCIBP-A5) both types of metabolites. Of all the strains studied, CCIBP-A5 shows the best potential for possible use in Foc race 1 management programs. Keywords: biological control, dual plate assays, Musa spp.