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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Bacterial spot and early blight biocontrol by epiphytic bacteria in tomato plants.
Autores:  LANNA FILHO, R.
ROMEIRO, R. da S.
ALVES, E.
Data:  2011-03-29
Ano:  2010
Palavras-chave:  Alternaria solani
Bacillus pumilus
Paenibacillus macerans
Xanthomonas vesicatoria
Biological control
Epiphytic bacteria
Resumo:  Abstract ? The objective of this work was to evaluate in vitro and in vivo biocontrol of Xanthomonas vesicatoria) Alternaria solani) by the epiphytic bacteria Paenibacillus macerans and Bacillus pumilus. Tomato plants were previously sprayed with epiphytic bacteria, benzalkonium chloride and PBS buffer and, after four days, they were inoculated with A. solani and X. vesicatoria. To determine the phytopathogenic bacteria population, leaflet samples were collected from each treatment every 24 hours, for seven days, and plated on semi-selective medium. The effect of epiphytic bacteria over phytopathogens was performed by the antibiosis test and antagonistic activity measured by inhibition zone diameter. The epiphytic and benzalkonium chloride drastically reduced the severity of early blight and bacterial spot in comparison to the control (PBS). In detached leaflets, the epiphytic bacteria reduced in 70% the number of phytopathogenic bacteria cells in the phylloplane. The antibiosis test showed that the epiphytic bacteria efficiently inhibit the phytopathogens growth. In all the bioassays, the epiphytic bacteria protect tomato plants against the phytopathogens.

2010
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  49484

http://www.alice.cnptia.embrapa.br/handle/doc/883671

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/105580/1/Bacterial-spot.pdf
Editor:  Pesquisa Agropecuaria brasileira., Brasília, v.45, n.12, p.1381-1387, dez. 2010
Relação:  Área de Informação da Sede - Artigo em periódico indexado (ALICE)
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