Journal article
Streptomyces lunalinharesii Strain 235 Shows the Potential to Inhibit Bacteria Involved in Biocorrosion Processes
BioMed research international, Vol.2013(2013), 309769
2013
PMID: 23484107
Abstract
Four actinomycete strains previously isolated from Brazilian soils were tested for their antimicrobial activity against Bacillus pumilus LF-4 and Desulfovibrio alaskensis NCIMB 13491, bacteria that are well known to be involved in biofilm formation and biocorrosion. Strain 235, belonging to the species Streptomyces lunalinharesii, inhibited the growth of both bacteria. The antimicrobial activity was seen over a wide range of pH, and after treatment with several chemicals and heat but not with proteinase K and trypsin. The antimicrobial substances present in the concentrated supernatant from growth media were partially characterized by SDS-PAGE and extracellular polypeptides were seen. Bands in the size range of 12 to 14.4 kDa caused antimicrobial activity. Transmission electron microscopy of D. alaskensis cells treated with the concentrated supernatant containing the antimicrobial substances revealed the formation of prominent bubbles, the spherical double-layered structures on the cell membrane, and the periplasmic space completely filled with electron-dense material. This is the first report on the production of antimicrobial substances by actinomycetes against bacteria involved in biocorrosion processes, and these findings may be of great relevance as an alternative source of biocides to those currently employed in the petroleum industry.
Details
- Title
- Streptomyces lunalinharesii Strain 235 Shows the Potential to Inhibit Bacteria Involved in Biocorrosion Processes
- Authors/Creators
- Juliana Pacheco da Rosa - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, BrazilElisa Korenblum - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, BrazilMarcella Novaes Franco-Cirigliano - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, BrazilFernanda Abreu - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, BrazilUlysses Lins - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, BrazilRosangela M. A. Soares - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, BrazilAndrew Macrae - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, BrazilLucy Seldin - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, BrazilRosalie R. R. Coelho - Univ Fed Rio de Janeiro, Dept Microbiol Geral, Inst Microbiol Prof Paulo de Goes, Ctr Ciencias Saude,Ilha Fundao, BR-21941590 Rio De Janeiro, RJ, Brazil
- Publication Details
- BioMed research international, Vol.2013(2013), 309769
- Publisher
- Hindawi Publishing Group
- Number of pages
- 10
- Grant note
- PETROBRAS; Fundacao de Amparo a Pesquisa do Amapa (FAPEAP); Petrobras Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) Fundacao de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ); Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio De Janeiro (FAPERJ) Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)
- Identifiers
- 991005894366807891
- Copyright
- © 2013 Juliana Pacheco da Rosa et al.
- Murdoch Affiliation
- Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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