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Revista mexicana de fitopatología
versión On-line ISSN 2007-8080versión impresa ISSN 0185-3309
Resumen
MEJIA-BAUTISTA, Miguel Ángel et al. Bacillus spp. in the Control of Wilt Caused by Fusarium spp. in Capsicum chinense. Rev. mex. fitopatol [online]. 2016, vol.34, n.3, pp.208-222. ISSN 2007-8080. https://doi.org/10.18781/r.mex.fit.1603-1.
The genus Fusarium is a pathogen associated with chili wilt and reduced crop yield. Rhizobacterias are an alternative to improve agricultural production and protection against plant pathogens. In this work the in vitro antagonism of ten Bacillus strains against Fusarium solani ITCF1 and F. equiseti ITCF2 were evaluated. Our results showed that all the bacterial strains inhibited mycelial growth between 21.28 and 71.70 %, additionally the CBMT2 and CBMT51 strains showed inhibition halos against F. equiseti with halos of 3.76 and 6.37 mm. The two pathogens showed 100 % incidence of disease in seedlings habanero chili and severity of 90.0 % by F. solani and 77.5 % by F. equiseti. In resistance tests wilt four strains of Bacillus based on the antagonistic activity were used, three inoculations were made in base of stem 15, 28 and 35 days after germination, we found that B. subtilis CBMT51and B. cereus BL18 reduced the severity disease caused by F. equiseti and BL18 strain for F. solani, in 47.7, 37.8 and 50.9 % respectively at 28 days of evaluation.
Palabras llave : Rhizobacteria; antagonism; incidence; severity; Fusarium solani; Fusarium equiseti.