Reduction in concentration of chromium (VI) by Lysinibacillus macroides isolated from sediments of the Chapala Lake, Mexico
| Autor: | Fernando Lares-Villa, Alejandro Cruz-Soto, Edith Flores-Tavizón, María Isabel Estrada-Alvarado, Claudia C. Hernández-Peña, Marisela Yadira Soto-Padilla, Sergio de los Santos-Villalobos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Chromium
Science 0211 other engineering and technologies chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 01 natural sciences Bioremediation RNA Ribosomal 16S 16S rRNA Effluent Bacillaceae Mexico Ecosystem Phylogeny 0105 earth and related environmental sciences Pollutant 021110 strategic defence & security studies Multidisciplinary Strain (chemistry) biology reduction Cr(VI) Aquatic ecosystem Hydrogen-Ion Concentration Chapala Lake biology.organism_classification 16S ribosomal RNA Lakes chemistry Lysinibacillus macroides Environmental chemistry Oxidation-Reduction Bacteria |
| Zdroj: | Anais da Academia Brasileira de Ciências, Volume: 93, Issue: 2, Article number: e20190144, Published: 09 APR 2021 Anais da Academia Brasileira de Ciências, Vol 93, Iss 2 (2021) Anais da Academia Brasileira de Ciências v.93 n.2 2021 Anais da Academia Brasileira de Ciências Academia Brasileira de Ciências (ABC) instacron:ABC |
| Popis: | The Chapala Lake is one of the most polluted lakes in Mexico, due to the in flow of effluents from several industrial plants, the lake accumulates pollutants such as chromium(VI) which is considered important for aquatic ecosystem. This study aimed was to evaluate the ability to decrease the concentration of chromium (VI) by Lysinibacillus macroides 2(1B)104A, isolated from sediments of the Chapala Lake. The strain was identified through 16S rRNA sequencing and phylogenetic analysis. Results showed that this strain grows in concentrations of 50, 100, 200 and 300 mgL-1 Cr(VI), in pH ranging 6 to 7, showing 79.508% reduction in concentration 50 mgL-1, determining that the reduction occurs extracellularly. Likewise, it was observed that Lysinibacillus macroides reduced the concentration of Cr(IV) in the broth, it was not observed that the bacteria could sequester Cr(VI) in the membrane or intracellularly. However, it reduced the concentration of Cr(VI) in the broth. Lysinibacillus macroides 2(1B)104A isolate showed having the ability that decrease the concentration of Cr(VI), which makes it a viable options for bioremediation of water polluted with this metal. |
| Databáze: | OpenAIRE |
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