Pyricularia pennisetigena and P. zingibericola from invasive grasses infect signal grass, barley and wheat1
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چکیده
The Pyricularia genus includes several pathogenic fungi species that are associated with blast disease in more than 50 Poaceae plants (Ou 1985). Among these species, Pyricularia oryzae is the most important pathogen, due to its global distribution on plants from the Poaceae family. The blast disease caused by P. oryzae is responsible for severe losses in crops of high economic importance such as rice (Oryza sativa), oat (Avena sativa), signal grass (Urochloa spp.), rye (Secale cereal), barley (Hordeum vulgare), maize (Zea mays) and wheat (Triticum aestivum) (Bailey & Eijnatten 1961, Igarashi et al. 1986, Urashima et al. 1993, Anjos et ABSTRACT RESUMO
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