First report of Alternaria alternata (Fr.) Keissler causing inflorescence blight in Jatropha curcas in Sinaloa, Mexico

A new fungal disease of inflorescences of Mexican nut (Jatropha curcas L.) was found on plants in two experimental fields located in Sinaloa, Mexico during summer 2011. The fungus caused inflorescence blight on flowers with typical symptoms of dark brown necrotic lesions; both plantations of J. curc...

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Detalhes bibliográficos
Autores: Espinoza-Verduzco, María De Los Angeles, Santos-Cervantes, María Elena, Espinoza-Mancillas, Mariela Guadalupe, Chávez-Medina, Jesús Alicia, Méndez-Lozano, Jesús, Leyva-López, Norma Elena
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:México
Recursos:Instituto Politécnico Nacional
Repositorio:Repositorio Digital del IPN
OAI Identifier:oai:www.repositoriodigital.ipn.mx:123456789/16688
Acesso em linha:http://www.repositoriodigital.ipn.mx/handle/123456789/16688
Access Level:acceso abierto
Palavra-chave:Alternaria alternata, inflorescence blight, Jatropha curcas, Physic nut
Descrição
Resumo:A new fungal disease of inflorescences of Mexican nut (Jatropha curcas L.) was found on plants in two experimental fields located in Sinaloa, Mexico during summer 2011. The fungus caused inflorescence blight on flowers with typical symptoms of dark brown necrotic lesions; both plantations of J. curcas had disease incidence of 50–60%. Based on cultural and morphological characteristics and ribosomal DNA spacer sequences, the pathogen was identified as Alternaria alternata (Fr.) Keissler. To our knowledge, this is the first report of Alternaria inflorescence blight disease in J. curcas in Mexico.