Selection of microorganisms degrading S-Metolachlor herbicide.

• Autor(a) principal: MARTINS, P. F.
• Data de Publicação: 2007
• Outros Autores: MARTINEZ, C. O., CARVALHO, G. de, CARNEIRO, P. I. B., AZEVEDO, A. R., PILEGGI, S. A. V., MELO, I. S. de, PILEGGI, M.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/15947
• topic: Bactéria; Biodegradação; Klebsiella Pneumoniae; Herbicida; Enterobacter aerogenes; Pseudomonas alcaligenes

The aim of this work was to study herbicide degradation through selected microorganisms from humus and soil subjected to different plantation systems. The following bacterial species were identified: Klebsiella pneumoniae pneumoniae GC s.B strain 1, Pseudomonas alcaligenes, Enterobacter aerogenes GC s.A and Klebsiella pneumoniae pneumoniae GC s.B strain 2. Growth studies yet suggested the possibility of a very long lag phase. Although, culture with the herbicide presented biofilm formation and there were color changes in the herbicide that could have interfered with the espectrophotometry readings. After 5 days of incubation at 35ºC, the difference in the concentration of herbicide was 14.42% on average and after 10 days, 35.01%.