Fusarium sacchari associado à podridão do colmo em milho doce no Brasil

Resumo

Sweet corn is susceptible to the attack of various pathogens that affect its metabolism and compromise its quality and production. This study aimed to identify the causal agent of stem rot in sweet corn plants under greenhouse conditions. The identity of the pathogenic isolate was confirmed by sequencing of internal transcribed spacer (ITS1/ITS4), beta tubulin (BT2A/BT2B), calmodulin (CL1/CL2) and translation elongation factor 1α (TEF1). The morphological and sequencing characteristics showed that Fusarium sacchari, which belongs to the Fusarium fujikuroi complex, is directly associated with the symptoms observed in the field. This fungal isolate has never been associated with diseases in Zea mays (saccharata group) in Brazil; therefore, this is the first report of the fungus infecting sweet corn in a cultivated area.

Descrição

Palavras-chave

Fusarium fujikuroi, Zea mays, Patógeno fúngico, Fungal pathogen

Citação

CARRER FILHO, Renato de et al. Fusarium sacchari associado à podridão do colmo em milho doce no Brasil. Pesquisa Agropecuária Tropical, Goiânia, v. 53, e74263. 2023. DOI: 10.1590/1983-40632023v5374263. Disponível em: https://revistas.ufg.br/pat/article/view/74263/39428. Acesso em 03 ago. 2023.