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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,...

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Detalles Bibliográficos
Autores principales: Elahi, Amina, Rehman, Abdul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
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%.
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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
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