Bioprospecting perchlorate-reducing bacteria: report of the genera Psychrobacter, Planococcus, Carnobacterium, and Paeniglutamicibacter isolated in Cierva Point, Antarctica, and its contribution to SDG 3.
- 1Grupo de Estudios Químicos y Biológicos, Dirección de Ciencias Básicas, Universidad Tecnológica de Bolívar, 130001, Cartagena de Indias D. T. y C, Colombia.
- 2Chemistry and Biology Group, Chemistry and Biology Department, Universidad del Norte, 081007, Barranquilla, Colombia.
- 3Grupo de Estudios Químicos y Biológicos, Dirección de Ciencias Básicas, Universidad Tecnológica de Bolívar, 130001, Cartagena de Indias D. T. y C, Colombia. [email protected].
Abstract
Perchlorate (ClO₄⁻) is a global contaminant that has been detected in various environmental matrices. ClO₄⁻ is considered an emerging pollutant because of its potent endocrine-disrupting effects, which impairs iodine uptake in the thyroid gland, and its high toxicity and persistence. Therefore, the development of technologies for its reduction in ecosystems is imperative; bioremediation is a promising technology for ClO₄⁻ reduction. In this study, bacterial strains isolated from marine sediments at Cierva Point, an Antarctic Specially Protected Area (ASPA No. 134), were characterized. The methodology consisted of four stages: i) isolation of the bacterial strains; ii) characterization of isolated strains by morphological, biochemical, and molecular traits; iii) susceptibility tests against NaCl and ClO₄⁻; iv) ClO₄⁻ removal assays using a selective electrode. The strains grew at 10 °C for 7 days and tolerated NaCl concentrations up to 30% w/v. All isolates grew at ClO₄⁻ concentrations of 10,000 mg/L, and five isolates also grew at 15,000 mg/L. Phylogenetic analysis identified members of the genera Psychrobacter, Planococcus, Carnobacterium, and Paeniglutamicibacter, capable of removing the contaminant in percentages between 40% and 52%. In alignment with UN Sustainable Development Goal 3 on promoting health and well-being, this project supports both ecosystem conservation and public health protection. In conclusion, the bacterial strains isolated from Cierva Point marine sediments, Antarctica, represent valuable resources for the bioremediation of ClO₄⁻ contamination, demonstrating significant potential to reduce and mitigate the pollutant in affected ecosystems.
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BibTeX
@article{puentesmartinez2026bioprospecting,
title = {{Bioprospecting perchlorate-reducing bacteria: report of the genera Psychrobacter, Planococcus, Carnobacterium, and Paeniglutamicibacter isolated in Cierva Point, Antarctica, and its contribution to SDG 3.}},
author = {Dainis Puentes-Martínez and Julieta Florez-Cuadrado and Leidy Martínez-Los Nuevos and Valentina Cardona-Martelo and Yacira Cassiani-Arroyo and Isis Hernández-Rocha and Carolina Rubiano-Labrador and Andrea Monroy-Licht and Rosa Acevedo-Barrios},
journal = {Biodegradation},
year = {2026},
month = oct,
doi = {10.1007/s10532-026-10400-z},
url = {https://europepmc.org/article/MED/42925350},
note = {CC BY},
}
RIS
TY - JOUR
TI - Bioprospecting perchlorate-reducing bacteria: report of the genera Psychrobacter, Planococcus, Carnobacterium, and Paeniglutamicibacter isolated in Cierva Point, Antarctica, and its contribution to SDG 3.
AU - Dainis Puentes-Martínez
AU - Julieta Florez-Cuadrado
AU - Leidy Martínez-Los Nuevos
AU - Valentina Cardona-Martelo
AU - Yacira Cassiani-Arroyo
AU - Isis Hernández-Rocha
AU - Carolina Rubiano-Labrador
AU - Andrea Monroy-Licht
AU - Rosa Acevedo-Barrios
PY - 2026
DA - 2026/10/24
JO - Biodegradation
DO - 10.1007/s10532-026-10400-z
UR - https://europepmc.org/article/MED/42925350
AB - Perchlorate (ClO₄⁻) is a global contaminant that has been detected in various environmental matrices. ClO₄⁻ is considered an emerging pollutant because of its potent endocrine-disrupting effects, which impairs iodine uptake in the thyroid gland, and its high toxicity and persistence. Therefore, the development of technologies for its reduction in ecosystems is imperative; bioremediation is a promising technology for ClO₄⁻ reduction. In this study, bacterial strains isolated from marine sediments at Cierva Point, an Antarctic Specially Protected Area (ASPA No. 134), were characterized. The methodology consisted of four stages: i) isolation of the bacterial strains; ii) characterization of isolated strains by morphological, biochemical, and molecular traits; iii) susceptibility tests against NaCl and ClO₄⁻; iv) ClO₄⁻ removal assays using a selective electrode. The strains grew at 10 °C for 7 days and tolerated NaCl concentrations up to 30% w/v. All isolates grew at ClO₄⁻ concentrations of 10,000 mg/L, and five isolates also grew at 15,000 mg/L. Phylogenetic analysis identified members of the genera Psychrobacter, Planococcus, Carnobacterium, and Paeniglutamicibacter, capable of removing the contaminant in percentages between 40% and 52%. In alignment with UN Sustainable Development Goal 3 on promoting health and well-being, this project supports both ecosystem conservation and public health protection. In conclusion, the bacterial strains isolated from Cierva Point marine sediments, Antarctica, represent valuable resources for the bioremediation of ClO₄⁻ contamination, demonstrating significant potential to reduce and mitigate the pollutant in affected ecosystems.
SN - 0923-9820
SN - 1572-9729
ER -