Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Chromate tolerance and removal of bacterial strains isolated from uncontaminated and chromium-polluted environments
 
research article

Chromate tolerance and removal of bacterial strains isolated from uncontaminated and chromium-polluted environments

Tamindžija, Dragana
•
Chromikova, Zuzana
•
Spaić, Andrea
Show more
March 21, 2019
World Journal of Microbiology and Biotechnology

Investigation of bacterial chromate tolerance has mostly focused on strains originating from polluted sites. In the present study, we isolated 33 chromate tolerant strains from diverse environments harbouring varying concentrations of chromium (Cr). All of these strains were able to grow on minimal media with at least 2 mM hexavalent chromium (Cr(VI)) and their classification revealed that they belonged to 12 different species and 8 genera, with a majority (n = 20) being affiliated to the Bacillus cereus group. Selected B. cereus group strains were further characterised for their chromate tolerance level and the ability to remove toxic Cr(VI) from solution. A similar level of chromate tolerance was observed in isolates originating from environments harbouring high or low Cr. Reference B. cereus strains exhibited the same Cr(VI) tolerance which indicates that a high chromate tolerance could be an intrinsic group characteristic. Cr(VI) removal varied from 22.9% (strain PCr2a) to 98.5% (strain NCr4). Strains NCr1a and PCr12 exhibited the ability to grow to the greatest extent in Cr(VI) containing media (maximum growth of 65.3% and 64.9% relative to that in the absence of Cr(VI), respectively) accompanied with high chromate removal activity (73.7% and 74.4%, respectively), making them prime candidates for the investigation of chromate tolerance mechanisms in Gram-positive bacteria and Cr(VI) bioremediation applications.

  • Details
  • Metrics
Type
research article
DOI
10.1007/s11274-019-2638-5
Web of Science ID

WOS:000462526200005

Scopus ID

2-s2.0-85063370403

PubMed ID

30900044

Author(s)
Tamindžija, Dragana
Chromikova, Zuzana
Spaić, Andrea
Barak, Imrich
Radnović, Dragan
Bernier-Latmani, Rizlan  
Date Issued

2019-03-21

Published in
World Journal of Microbiology and Biotechnology
Start page

35

End page

56

Subjects

Bacillus cereus group

•

Chromate resistance

•

Chromate tolerant cultivable bacteria

•

Hexavalent chromium removal

•

Serpentine soil · Unpolluted

Note

Online First.

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
EML  
Available on Infoscience
May 3, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/156256
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés