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Article

A New Thioalkalivibrio sp. Strain Isolated from Petroleum-Contaminated Brackish Estuary Sediments: A New Candidate for Bio-Based Application for Sulfide Oxidation in Halo-Alkaline Conditions

1
Department of Biology, University of Pisa, Via Luca Ghini 13, 56127 Pisa, Italy
2
Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Amendola 2, Pad. Besta, 42122 Reggio Emilia, Italy
3
Center for Algorithmic Biotechnology, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg 199034, Russia
4
Centre Biobank, Research Park, St. Petersburg State University, St. Petersburg 198504, Russia
*
Author to whom correspondence should be addressed.
Water 2020, 12(5), 1385; https://doi.org/10.3390/w12051385
Received: 16 April 2020 / Revised: 6 May 2020 / Accepted: 11 May 2020 / Published: 13 May 2020
A new halo-alkaline sulfur-oxidising bacterial strain was isolated from brackish estuary sediments contaminated by total petroleum hydrocarbon. The isolate was classified as a new strain of Thioalkalivibrio sulfidiphilus sp., showing a higher capability of adaptation to pH and a higher optimal sodium concentration for growth, when compared to Thioalkalivibrio sulfidiphilus sp. HL-EbGr7, type strain of the species. The strain was capable to grow in saline concentrations up to 1.5 M Na+ and pH up to 10. The genome of the new isolate was sequenced and annotated. The comparison with the genome of Thioalkalivibrio sulfidiphilus sp. HL-EbGr7 showed a duplication of an operon encoding for a putative primary sodium extruding pump and the presence of a sodium/proton antiporter with optimal efficiency at halo-alkaline conditions. The new strain was able to oxidize sulfide at halo-alkaline conditions at the rate of 1 mmol/mg-N/h, suitable for industrial applications dedicated to the recovery of alkaline scrubber for H2S emission absorption and abatement. View Full-Text
Keywords: Thioalkalivibrio sulfidiphilus sp.; sulfide oxidation; sodium extruding pump; sodium/proton antiporter; Dissimilatory Sulfite Reductase complex; Hetero Disulfide Reductase complex; alkaline sodium/proton antiporter Thioalkalivibrio sulfidiphilus sp.; sulfide oxidation; sodium extruding pump; sodium/proton antiporter; Dissimilatory Sulfite Reductase complex; Hetero Disulfide Reductase complex; alkaline sodium/proton antiporter
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MDPI and ACS Style

Becarelli, S.; La China, S.; Lapidus, A.; Prijibelski, A.; Polev, D.; Petroni, G.; Di Gregorio, S. A New Thioalkalivibrio sp. Strain Isolated from Petroleum-Contaminated Brackish Estuary Sediments: A New Candidate for Bio-Based Application for Sulfide Oxidation in Halo-Alkaline Conditions. Water 2020, 12, 1385. https://doi.org/10.3390/w12051385

AMA Style

Becarelli S, La China S, Lapidus A, Prijibelski A, Polev D, Petroni G, Di Gregorio S. A New Thioalkalivibrio sp. Strain Isolated from Petroleum-Contaminated Brackish Estuary Sediments: A New Candidate for Bio-Based Application for Sulfide Oxidation in Halo-Alkaline Conditions. Water. 2020; 12(5):1385. https://doi.org/10.3390/w12051385

Chicago/Turabian Style

Becarelli, Simone, Salvatore La China, Alla Lapidus, Andrey Prijibelski, Dmitrii Polev, Giulio Petroni, and Simona Di Gregorio. 2020. "A New Thioalkalivibrio sp. Strain Isolated from Petroleum-Contaminated Brackish Estuary Sediments: A New Candidate for Bio-Based Application for Sulfide Oxidation in Halo-Alkaline Conditions" Water 12, no. 5: 1385. https://doi.org/10.3390/w12051385

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