Abstract

VISINTIN, Griselda et al. Microflora de naranja adaptada al frío y su actividad antagónica frente a Penicillium digitatum (Pers.) Sacc. Cienc. docencia tecnol. [online]. 2013, n.47, pp.249-263. ISSN 1851-1716.

The surface of plants is inhabited by populations of microorganisms in which it is possible to find pathogens antagonists. The present paper deals about the collection of microorganisms that inhabit the surface of citrus and their screening as potential postharvest pathogens antagonists. Protocols obtained in the study also considered microorganisms obtained from wounds in fruits and their adaptation to cold storage conditions. Ten isolates were evaluated as potential antagonists of Penicillium digitatum (Pers.) Sacc by forced inoculation, recording their effectiveness by the percentage of wounds that remained asymptomatic and calculating the area under the curve of disease progression. Under the conditions of this study, strains S5 and S9 delayed 14 days the onset of symptoms of decay, achieving a maximum wounds biological protection efficiency of 47.65%.

Keywords : Plant pathology; Biocontrol; Postharvest rots.

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