Fusarium sacchari associated with stem rot in sweet corn in Brazil

Authors

  • Renato Carrer Filho
  • Mariana Guimarães
  • Vanessa Pereira de Abreu
  • Geisiane Alves Rocha
  • Renato de Carvalho Menezes
  • Vanessa Duarte Dias
  • Marcos Gomes da Cunha

Abstract

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.

KEY-WORDS: Fusarium fujikuroi, Zea mays, fungal pathogen.

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Author Biography

Renato Carrer Filho

Engenheiro Agronomo, UFV

Master of Science Fitopatologia, UFV

Especialista Gestão do Agronegócio, UFG

Doctor of Science Fitossanidade, UFG

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Published

2023-01-17

How to Cite

CARRER FILHO, R.; GUIMARÃES, M.; ABREU, V. P. de; ROCHA, G. A.; MENEZES, R. de C.; DIAS, V. D.; CUNHA, M. G. da. Fusarium sacchari associated with stem rot in sweet corn in Brazil. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 53, p. e74263, 2023. Disponível em: https://revistas.ufg.br/pat/article/view/74263. Acesso em: 26 dec. 2024.

Issue

Vol. 53 (2023)

Section

Scientific Note

License

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