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Comparative behavior of two gram positive Cr(6+) resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress
Bacillus aerius S1 and Brevibacterium iodinum S2 showed maximum growth at 37 °C and pH 8. B. aerius and B. iodinum could resist Cr(6+) upto 30 and 35 mM and biosorption proficiency (q) of B. aerius S1 was 19, 27, 52 and 34 mM/g while for B. iodinum S2, it was 39, 50, 23 and 16 mM/g mM/g after 2, 4,...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6348243/ https://www.ncbi.nlm.nih.gov/pubmed/30705835 http://dx.doi.org/10.1016/j.btre.2019.e00307 |
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author | Elahi, Amina Rehman, Abdul |
author_facet | Elahi, Amina Rehman, Abdul |
author_sort | Elahi, Amina |
collection | PubMed |
description | Bacillus aerius S1 and Brevibacterium iodinum S2 showed maximum growth at 37 °C and pH 8. B. aerius and B. iodinum could resist Cr(6+) upto 30 and 35 mM and biosorption proficiency (q) of B. aerius S1 was 19, 27, 52 and 34 mM/g while for B. iodinum S2, it was 39, 50, 23 and 16 mM/g mM/g after 2, 4, 6 and 8 days of incubation. A pronounced rise in antioxidant enzymes activities was determined in B. aerius S1 i.e. POX (963%), CAT (717%), APOX (699%), SOD (683%), and GST (792%). However, in B. iodinum S2, relatively a minor increase was estimated. A significant GSH increase was determined in B. aerius S1 (364%) and B. iodinum S2 (663%) cultures under 2 mM Cr(6+) stress. Pilot scale study demonstrated that both strains could reduce Cr(6+) into Cr(3+) within 6 days from the original tannery effluent with efficiency of 99%. |
format | Online Article Text |
id | pubmed-6348243 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-63482432019-01-31 Comparative behavior of two gram positive Cr(6+) resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress Elahi, Amina Rehman, Abdul Biotechnol Rep (Amst) Article Bacillus aerius S1 and Brevibacterium iodinum S2 showed maximum growth at 37 °C and pH 8. B. aerius and B. iodinum could resist Cr(6+) upto 30 and 35 mM and biosorption proficiency (q) of B. aerius S1 was 19, 27, 52 and 34 mM/g while for B. iodinum S2, it was 39, 50, 23 and 16 mM/g mM/g after 2, 4, 6 and 8 days of incubation. A pronounced rise in antioxidant enzymes activities was determined in B. aerius S1 i.e. POX (963%), CAT (717%), APOX (699%), SOD (683%), and GST (792%). However, in B. iodinum S2, relatively a minor increase was estimated. A significant GSH increase was determined in B. aerius S1 (364%) and B. iodinum S2 (663%) cultures under 2 mM Cr(6+) stress. Pilot scale study demonstrated that both strains could reduce Cr(6+) into Cr(3+) within 6 days from the original tannery effluent with efficiency of 99%. Elsevier 2019-01-15 /pmc/articles/PMC6348243/ /pubmed/30705835 http://dx.doi.org/10.1016/j.btre.2019.e00307 Text en © 2019 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Elahi, Amina Rehman, Abdul Comparative behavior of two gram positive Cr(6+) resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress |
title | Comparative behavior of two gram positive Cr(6+) resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress |
title_full | Comparative behavior of two gram positive Cr(6+) resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress |
title_fullStr | Comparative behavior of two gram positive Cr(6+) resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress |
title_full_unstemmed | Comparative behavior of two gram positive Cr(6+) resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress |
title_short | Comparative behavior of two gram positive Cr(6+) resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress |
title_sort | comparative behavior of two gram positive cr(6+) resistant bacterial strains bacillus aerius s1 and brevibacterium iodinum s2 under hexavalent chromium stress |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6348243/ https://www.ncbi.nlm.nih.gov/pubmed/30705835 http://dx.doi.org/10.1016/j.btre.2019.e00307 |
work_keys_str_mv | AT elahiamina comparativebehavioroftwogrampositivecr6resistantbacterialstrainsbacillusaeriuss1andbrevibacteriumiodinums2underhexavalentchromiumstress AT rehmanabdul comparativebehavioroftwogrampositivecr6resistantbacterialstrainsbacillusaeriuss1andbrevibacteriumiodinums2underhexavalentchromiumstress |