Isolation and characterization of a Pseudomonas aeruginosa from a virgin Brazilian Amazon region with potential to degrade atrazine
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  • 作者:Ana Flavia Tonelli Fernandes (1)
    Michelle Barbosa Partata da Silva (1)
    Vinicius Vicente Martins (1)
    Carlos Eduardo Saraiva Miranda (2)
    Eliana Guedes Stehling (1)
  • 关键词:Pseudomonas aeruginosa ; Atrazine ; Brazilian Amazon Forest
  • 刊名:Environmental Science and Pollution Research
  • 出版年:2014
  • 出版时间:December 2014
  • 年:2014
  • 卷:21
  • 期:24
  • 页码:13974-13978
  • 全文大小:278 KB
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  • 作者单位:Ana Flavia Tonelli Fernandes (1)
    Michelle Barbosa Partata da Silva (1)
    Vinicius Vicente Martins (1)
    Carlos Eduardo Saraiva Miranda (2)
    Eliana Guedes Stehling (1)

    1. Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeir?o Preto, USP-Ribeir?o Preto, Av. do Café S/N. Monte Alegre, Ribeir?o Preto, SP, Brazil, 14040-903
    2. Curso de Ciências Farmacêuticas de Ribeir?o Preto, Universidade de Ribeir?o Preto (UNAERP), Ribeir?o Preto, Brazil
  • ISSN:1614-7499
文摘
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.

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