First Report of Zonate Leaf Spot in Sorghum Caused by Microdochium sorghi in Uruguay

Silvina Stewart; Marcelo Julián Rodriguez Alonzo; Natalia Mattos; Eduardo Abreo

doi:10.31285/AGRO.23.74

First Report of Zonate Leaf Spot in Sorghum Caused by Microdochium sorghi in Uruguay

Silvina Stewart Protección Vegetal, INIA, La Estanzuela, ruta 50 km 11, Colonia, Uruguay. https://orcid.org/0000-0003-4472-3422
Marcelo Julián Rodriguez Alonzo Protección Vegetal, INIA, La Estanzuela, ruta 50 km 11, Colonia, Uruguay. https://orcid.org/0000-0001-8481-2142
Natalia Mattos Laboratorio de Bioproducción, Bioinsumos, INIA, Las Brujas, ruta 48, km 10, Canelones, Uruguay. https://orcid.org/0000-0002-6161-1089
Eduardo Abreo Laboratorio de Bioproducción, Bioinsumos, INIA, Las Brujas, ruta 48, km 10, Canelones, Uruguay. https://orcid.org/0000-0001-8517-0823

DOI: https://doi.org/10.31285/AGRO.23.74

Keywords: diagnose, ITS, Koch's postulate, Gloeocercospora sorghi

Abstract

Sorghum leaves with concentric lesions, alternating purple to red and beige to cinnamon, were observed for the first time in January 2017. The same symptoms were observed later in 29 % of sorghum cultivars in official Evaluación Nacional de Cultivares INASE-INIA trials. The pathogen was identified as Microdochium sorghi (syn. Gloeocercospora sorghi) once pathogenicity trials, morphological and molecular descriptions were done. This is the first report of this pathogen affecting sorghum in Uruguay.

Published

2019-11-09

How to Cite

Stewart S, Rodriguez Alonzo M, Mattos N, Abreo E. First Report of Zonate Leaf Spot in Sorghum Caused by Microdochium sorghi in Uruguay. Agrociencia Uruguay [Internet]. 9Nov.2019 [cited 27Feb.2020];23(2):1-5. Available from: http://agrocienciauruguay.uy/ojs/index.php/agrociencia/article/view/74

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Issue

Vol 23 No 2 (2019)

Section

Plant protection

This work is licensed under a Creative Commons Attribution 4.0 International License.