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  • Svahn, Stefan,1977-Uppsala universitet,Avdelningen för farmakognosi (author)

Antimicrobial activity of filamentous fungi isolated from highly antibiotic-contaminated river sediment

  • Article/chapterEnglish2012

Publisher, publication year, extent ...

  • 2012-05-24
  • Informa UK Limited,2012
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-188192
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-188192URI
  • https://doi.org/10.3402/iee.v2i0.11591DOI
  • https://gup.ub.gu.se/publication/187218URI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:222957125URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Background:Filamentous fungi are well known for their production of substances with antimicrobial activities, several of which have formed the basis for the development of new clinically important antimicrobial agents. Recently, environments polluted with extraordinarily high levels of antibiotics have been documented, leading to strong selection pressure on local sentinel bacterial communities. In such microbial ecosystems, where multidrug-resistant bacteria are likely to thrive, it is possible that certain fungal antibiotics have become less efficient, thus encouraging alternative strategies for fungi to compete with bacteria.Methods:In this study, sediment of a highly antibiotic-contaminated Indian river was sampled in order to investigate the presence of cultivable filamentous fungi and their ability to produce substances with antimicrobial activity.Results:Sixty one strains of filamentous fungi, predominantly various Aspergillus spp. were identified. The majority of the Aspergillus strains displayed antimicrobial activity against methicillin-resistant Staphylococcus aureus, extended-spectrum beta-lactamase-producing Escherichia coli, vancomycin-resistant Enterococcus faecalis and Candida albicans. Bioassay-guided isolation of the secondary metabolites of A. fumigatus led to the identification of gliotoxin.Conclusion:This study demonstrated proof of principle of using bioassay-guided isolation for finding bioactive molecules

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Göransson, UlfUppsala universitet,Avdelningen för farmakognosi(Swepub:uu)ugo29049 (author)
  • El-Seedi, HeshamUppsala universitet,Avdelningen för farmakognosi(Swepub:uu)heels173 (author)
  • Bohlin, LarsUppsala universitet,Avdelningen för farmakognosi(Swepub:uu)larsbohl (author)
  • Larsson, D. G. Joakim,1969Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine(Swepub:gu)xlarjo (author)
  • Olsen, BjörnUppsala universitet,Infektionssjukdomar(Swepub:uu)bjool781 (author)
  • Chryssanthou, ErjaKarolinska Institutet (author)
  • Uppsala universitetAvdelningen för farmakognosi (creator_code:org_t)

Related titles

  • In:Infection Ecology & Epidemiology: Informa UK Limited2, s. 11591-2000-8686

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