Diversity of Mercury Resistant Escherichia coli Strains Isolated from Aquatic Systems in Rio de Janeiro, Brazil
Joint Authors
Duarte, Rafael Silva
Tavora Coelho da Costa Rachid, Caio
Machado Gomes, Karen
Regua-Mangia, Adriana Hamond
Rosado, Alexandre Soares
de Luca Rebello, Raquel Costa
Source
International Journal of Biodiversity
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Biology
Abstract EN
Escherichia coli may harbor genetic mercury resistance markers which makes this bacterial species a promising alternative for bioremediation processes.
The objective of this study was to investigate phenotypic and genetic characteristics related to diversity and mercury resistance among 178 Escherichia coli strains isolated from residential, industrial, agricultural, and hospital wastewaters and recreational waters at Rio de Janeiro city.
Genetic and conventional methods were carried out in order to determine mercury resistance.
Random amplification of polymorphic DNA (RAPD-PCR) and denaturing gradient gel electrophoresis (DGGE) were used to investigate genetic variability.
RAPD data revealed a high degree of polymorphism among E.
coli mercury resistant strains and showed reproducibility and good discriminative results.
DGGE typing detected diversity within the merA gene fragment.
Our findings represent an improvement in epidemiological studies of HgR E.
coli and support the evidence of nonclonal nature of mercury resistant E.
coli strains circulating in rural and urban aquatic systems in Rio de Janeiro city.
American Psychological Association (APA)
de Luca Rebello, Raquel Costa& Machado Gomes, Karen& Duarte, Rafael Silva& Tavora Coelho da Costa Rachid, Caio& Rosado, Alexandre Soares& Regua-Mangia, Adriana Hamond. 2013. Diversity of Mercury Resistant Escherichia coli Strains Isolated from Aquatic Systems in Rio de Janeiro, Brazil. International Journal of Biodiversity،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-458732
Modern Language Association (MLA)
de Luca Rebello, Raquel Costa…[et al.]. Diversity of Mercury Resistant Escherichia coli Strains Isolated from Aquatic Systems in Rio de Janeiro, Brazil. International Journal of Biodiversity No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-458732
American Medical Association (AMA)
de Luca Rebello, Raquel Costa& Machado Gomes, Karen& Duarte, Rafael Silva& Tavora Coelho da Costa Rachid, Caio& Rosado, Alexandre Soares& Regua-Mangia, Adriana Hamond. Diversity of Mercury Resistant Escherichia coli Strains Isolated from Aquatic Systems in Rio de Janeiro, Brazil. International Journal of Biodiversity. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-458732
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458732