Isolation and characterization of a Pseudomonas aeruginosa from a virgin Brazilian Amazon region with potential to degrade atrazine

Autor(es)

Fernandes, Ana Flavia Tonelli ^[1] ; Partata da Silva, Michelle Barbosa ^[1] ; Martins, Vinicius Vicente ^[1] ; Saraiva Miranda, Carlos Eduardo ^[2] ; Stehling, Eliana Guedes ^[1]

Afiliação do(s) autor(es)

^[1] USP Ribeirao Preto, Fac Ciencias Farmaceut Ribeirao Preto, Dept Anal Clin Toxicol & Bromatol, BR-14040903 Ribeirao Preto, SP - Brazil

^[2] Univ Ribeiro Preto UNAERP, Curso Cincias Farmacut Ribeiro Preto, Ribeirao Preto - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Environmental Science and Pollution Research; v. 21, n. 24, p. 13974-13978, DEC 2014.
• Citações Web of Science: 11

Resumo

The use of pesticides to increase agricultural production can result in the contamination of the environment, causing changes in the genetic structure of organisms and in the loss of biodiversity. This practice is also inducing changes in the rainforest ecosystem. In this work, a Pseudomonas aeruginosa isolated from a preservation soil area of the Brazilian Amazon Forest, without usage of any pesticide, was evaluated for its potential to degrade atrazine. This isolate presented all responsible genes (atzA, atzB, atzC, atzD, atzE, and atzF) for atrazine mineralization and demonstrated capacity to use atrazine as a nitrogen source, having achieved a reduction of 44 % of the initial concentration of atrazine after 24 h. These results confirm gene dispersion and/or a possible contamination of the area with the herbicide, which reinforces global concern of the increase and intensive use of pesticides worldwide. (AU)

• Processo FAPESP: 13/19401-5 - Pesquisa dos genes envolvidos na resistência aos carbapenêmicos e monobactâmicos em isolados ambientais de Pseudomonas aeruginosa
• Beneficiário: Eliana Guedes Stehling
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 09/16657-3 - Estudo comparativo de linhagens de Pseudomonas aeruginosa isoladas de diversas origens e investigação do antagonismo com bactérias do grupo coliforme
• Beneficiário: Eliana Guedes Stehling
• Modalidade de apoio: Auxílio à Pesquisa - Regular