Characterization of Magnaporthe grisea (Pyricularia grisea) from Black Oat in Brazil

Autor(es)

Urashima, Alfredo Seiiti ^[1] ; Silva, Cristina Perbelini ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Ctr Ciencias Agr, Dept Biotecnol Vegetal, BR-13600000 Araras, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PHYTOPATHOLOGY; v. 159, n. 11-12, p. 789-795, DEC 2011.
• Citações Web of Science: 4

Resumo

Blast caused by Magnaporthe grisea (Pyricularia grisea) is a disease that occurs in many important gramineous plants in Brazil such as rice, wheat, triticale and barley. In 2005, the presence of this disease was reported on black oat (Avena strigosa) at different locations of Parana state. Due to little information of M. grisea that is infecting this host, this work aimed to characterize it at molecular, sexual and pathogenic level. DNA analysis showed that M. grisea from black oat formed a homogenous and genetic distinct group of its own, different from other hosts, including rice, wheat, triticale and barley. Isolate 15720 was an exception, because it was similar to wheat isolate. There was no sexual compatibility between M. grisea from oat and other tested hosts. In pathogenic terms, isolates of M. grisea from oat infected triticale, wheat, rye, millet, barley, sorghum and rice; cross-inoculation was positive with wheat, triticale, rice and barley. (AU)

• Processo FAPESP: 06/55398-5 - Caracterização patogênica, sexual e molecular de Magnaporthe grisea (Pyricularia grisea) de aveia: um novo hospedeiro atacado pela brusone
• Beneficiário: Cristina Perbelini Silva
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 06/50331-0 - Caracterização patogênica, sexual e molecular de Magnaporthe grisea (Pyricularia grisea) de aveia: um novo hospedeiro da brusone
• Beneficiário: Alfredo Seiiti Urashima
• Modalidade de apoio: Auxílio à Pesquisa - Regular