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Centro Agrícola

versión On-line ISSN 0253-5785

Resumen

BERNAL CABRERA, Alexander et al. The Cladosporium fulvum - Solanum lycopersicum pathosystem in tropical protected cultivation conditions in Cuba. Ctro. Agr. [online]. 2020, vol.47, suppl.1, pp. 88-94.  Epub 17-Dic-2020. ISSN 0253-5785.

Leaf mold, caused by the fungus Cladosporium fulvum (syn. Passalora fulva), is a very common and destructive disease in greenhouse tomato cultivation in the world. The objective of the work was to characterize culturally, pathogenetically and molecularly a population of 36 isolates of C. fulvum from different localities of the country. The results of cultural characterization showed that C. fulvum isolates maintain homogeneous cultural characteristics that are not related to pathogenic variability. From a pathogenetic point of view, the presence of C. fulvum strains that can overcome the Cf-9 resistance gene was demonstrated, a result that was confirmed through the non-amplification of the Avr9 gene. These are the first results in the country on C. fulvum where three of the most important aspects that characterize the variability of this phytopathogenic fungus are combined.

Palabras clave : Cf genes; Avr genes; leaf mould; tomato.

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