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Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge

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Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge. / Romo, Dolly Margot Revelo; Gutierrez, Nelson H.H.; Pazos, J. O. R. et al.
In: Revista Argentina de Microbiologia, Vol. 51, No. 2, 01.04.2019, p. 110-118.

Research output: Contribution to journal › Article › peer-review

HarvardHarvard

Romo, DMR, Gutierrez, NHH, Pazos, JOR, Figueroa, LVP & Ordonez Ordonez, A 2019, 'Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge', Revista Argentina de Microbiologia, vol. 51, no. 2, pp. 110-118. https://doi.org/10.1016/j.ram.2018.04.005

APA

Romo, D. M. R., Gutierrez, N. H. H., Pazos, J. O. R., Figueroa, L. V. P., & Ordonez Ordonez, A. (2019). Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge. Revista Argentina de Microbiologia, 51(2), 110-118. https://doi.org/10.1016/j.ram.2018.04.005

CBE

Romo DMR, Gutierrez NHH, Pazos JOR, Figueroa LVP, Ordonez Ordonez A. 2019. Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge. Revista Argentina de Microbiologia. 51(2):110-118. https://doi.org/10.1016/j.ram.2018.04.005

MLA

Romo, Dolly Margot Revelo et al. "Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge". Revista Argentina de Microbiologia. 2019, 51(2). 110-118. https://doi.org/10.1016/j.ram.2018.04.005

VancouverVancouver

Romo DMR, Gutierrez NHH, Pazos JOR, Figueroa LVP, Ordonez Ordonez A. Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge. Revista Argentina de Microbiologia. 2019 Apr 1;51(2):110-118. Epub 2018 Aug 23. doi: 10.1016/j.ram.2018.04.005

Author

Romo, Dolly Margot Revelo ; Gutierrez, Nelson H.H. ; Pazos, J. O. R. et al. / Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge. In: Revista Argentina de Microbiologia. 2019 ; Vol. 51, No. 2. pp. 110-118.

RIS

TY - JOUR

T1 - Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge

AU - Romo, Dolly Margot Revelo

AU - Gutierrez, Nelson H.H.

AU - Pazos, J. O. R.

AU - Figueroa, L. V. P.

AU - Ordonez Ordonez, Alejandra

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Although Cr(VI)-reducing and/or tolerant microorganisms have been investigated, there is no detailed information on the composition of the microbial community of the biocathode microbial fuel cell for Cr(VI) reduction. In this investigation, the bacterial diversity of a biocathode was analyzed using 454 pyrosequencing of the 16S rRNA gene. It was found that most bacteria belonged to phylum Proteobacteria (78.8%), Firmicutes (7.9%), Actinobacteria (6.6%) and Bacteroidetes (5.5%), commonly present in environments contaminated with Cr(VI). The dominance of the genus Pseudomonas (34.87%), followed by the genera Stenotrophomonas (5.8%), Shinella (4%), Papillibacter (3.96%), Brevundimonas (3.91%), Pseudochrobactrum (3.54%), Ochrobactrum (3.49%), Hydrogenophaga (2.88%), Rhodococcus (2.88%), Fluviicola (2.35%), and Alcaligenes (2.3%), was found. It is emphasized that some genera have not previously been associated with Cr(VI) reduction. This biocathode from waters contaminated with tannery effluents was able to remove Cr(VI) (97.83%) in the cathodic chamber. Additionally, through use of anaerobic sludge in the anodic chamber, the removal of 76.6% of organic matter (glucose) from synthetic waste water was achieved. In this study, an efficient biocathode for the reduction of Cr(VI) with future use in bioremediation, was characterized.

AB - Although Cr(VI)-reducing and/or tolerant microorganisms have been investigated, there is no detailed information on the composition of the microbial community of the biocathode microbial fuel cell for Cr(VI) reduction. In this investigation, the bacterial diversity of a biocathode was analyzed using 454 pyrosequencing of the 16S rRNA gene. It was found that most bacteria belonged to phylum Proteobacteria (78.8%), Firmicutes (7.9%), Actinobacteria (6.6%) and Bacteroidetes (5.5%), commonly present in environments contaminated with Cr(VI). The dominance of the genus Pseudomonas (34.87%), followed by the genera Stenotrophomonas (5.8%), Shinella (4%), Papillibacter (3.96%), Brevundimonas (3.91%), Pseudochrobactrum (3.54%), Ochrobactrum (3.49%), Hydrogenophaga (2.88%), Rhodococcus (2.88%), Fluviicola (2.35%), and Alcaligenes (2.3%), was found. It is emphasized that some genera have not previously been associated with Cr(VI) reduction. This biocathode from waters contaminated with tannery effluents was able to remove Cr(VI) (97.83%) in the cathodic chamber. Additionally, through use of anaerobic sludge in the anodic chamber, the removal of 76.6% of organic matter (glucose) from synthetic waste water was achieved. In this study, an efficient biocathode for the reduction of Cr(VI) with future use in bioremediation, was characterized.

U2 - 10.1016/j.ram.2018.04.005

DO - 10.1016/j.ram.2018.04.005

M3 - Article

VL - 51

SP - 110

EP - 118

JO - Revista Argentina de Microbiologia

JF - Revista Argentina de Microbiologia

SN - 0325-7541

IS - 2

ER -