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Revista de Ciencia y Tecnología

On-line version ISSN 1851-7587


LOPEZ, Ana C. et al. isolation and identification of fungi associated with llex paraguariensis St. Hil.. Rev. cienc. tecnol. [online]. 2020, n.33, pp.1-10. ISSN 1851-7587.

The cultivation of Ilex paraguariensis is important in northern Argentina, mainly in Misiones province. The presence of different symptoms of diseases caused by fungi has recently been observed. Neither the causative agents nor the epidemiological or economic damages have been identified yet. In this study, fungi were isolated from yerba mate leaves that showed visible symptoms of foliar lesions. Five isolated samples: Alternaría, Colletotrichum, Phoma and Pilidium; which were selected because of both, their micro and macro morphological characteristics. These fungi were identified by using an optical microscope together with morphological keys. Pathogenicity tests were carried out on yerba mate leaves and on one-year-old plants. The results showed that Colletotrichum sp. LBM 183 and Phoma sp. LBM 207 are pathogens typical of the yerba mate leaves capable of developing within the plant tissue, while Alternaría sp. LBM 186 and Pilidium sp. LBM 208 were able to sicken the plant by entering into the yerba mate root.

Keywords : Yerba mate; Phytopathogens; Identification; Morphological keys; Pathogenic assay..

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