Galina Slobodkina , Alexander Merkel , Nataliya Ratnikova , Alexandra Kuchierskaya , Alexander Slobodkin
{"title":"从陆生泥火山中分离的化学-岩石自养细菌Sedimiticola hydrogerophicus sp.nov.和Sedimiticollaceae家族的提议。nov.,按色度顺序排列。","authors":"Galina Slobodkina , Alexander Merkel , Nataliya Ratnikova , Alexandra Kuchierskaya , Alexander Slobodkin","doi":"10.1016/j.syapm.2023.126451","DOIUrl":null,"url":null,"abstract":"<div><p><span>Chemolithoautotrophic microorganisms<span> can play a significant role in the biogeochemical cycling of elements in deep-subsurface-associated environments. A novel facultatively anaerobic lithoautotrophic bacteria (strains SB48</span></span><sup>T</sup><span> and SN1189) were isolated from terrestrial mud volcanoes<span> (Krasnodar Krai, Russia). Cells of the strains were straight motile rods. Growth was observed at temperatures up to 35 °C (optimum at 30 °C), pH 6.0–8.5 (optimum at pH 7.5) and NaCl concentrations of 0.5–4.0% (w/v) (optimum at 1.5–2.0% (w/v)). The isolates grew chemolithoautotrophically with molecular hydrogen or thiosulfate as an electron donor, nitrate as an electron acceptor and CO</span></span><sub>2</sub>/HCO<sub>3</sub><sup>−</sup><span><span><span> as a carbon source. They also grew with organic acids, ethanol, yeast extract and peptone. The isolates were capable of either </span>anaerobic respiration with nitrate or </span>nitrous oxide as the electron acceptors or aerobic respiration under microaerobic condition. The total size of the genome of strains SB48</span><sup>T</sup><span> and SN1189 was 4.71 and 5.13 Mbp, respectively. Based on phenotypic and phylogenetic characteristics, strains SB48</span><sup>T</sup> and SN1189 represent a novel species of the genus <em>Sedimenticola</em>, <em>S. hydrogenitrophicus</em> (the type strain is SB48<sup>T</sup> = KCTC 25568 <sup>T</sup> = VKM B-3680 <sup>T</sup>). The new isolates are the first representatives of the genus <em>Sedimenticola</em><span> isolated from a terrestrial ecosystem<span>. Based on phylogenomic reconstruction we propose to include the genus </span></span><em>Sedimenticola</em> and the related genera into a new family <em>Sedimenticolaceae</em> fam. nov. within the order <em>Chromatiales</em>.</p></div>","PeriodicalId":22124,"journal":{"name":"Systematic and applied microbiology","volume":"46 5","pages":"Article 126451"},"PeriodicalIF":3.3000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sedimenticola hydrogenitrophicus sp. nov. a chemolithoautotrophic bacterium isolated from a terrestrial mud volcano, and proposal of Sedimenticolaceae fam. nov. in the order Chromatiales\",\"authors\":\"Galina Slobodkina , Alexander Merkel , Nataliya Ratnikova , Alexandra Kuchierskaya , Alexander Slobodkin\",\"doi\":\"10.1016/j.syapm.2023.126451\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>Chemolithoautotrophic microorganisms<span> can play a significant role in the biogeochemical cycling of elements in deep-subsurface-associated environments. A novel facultatively anaerobic lithoautotrophic bacteria (strains SB48</span></span><sup>T</sup><span> and SN1189) were isolated from terrestrial mud volcanoes<span> (Krasnodar Krai, Russia). Cells of the strains were straight motile rods. Growth was observed at temperatures up to 35 °C (optimum at 30 °C), pH 6.0–8.5 (optimum at pH 7.5) and NaCl concentrations of 0.5–4.0% (w/v) (optimum at 1.5–2.0% (w/v)). The isolates grew chemolithoautotrophically with molecular hydrogen or thiosulfate as an electron donor, nitrate as an electron acceptor and CO</span></span><sub>2</sub>/HCO<sub>3</sub><sup>−</sup><span><span><span> as a carbon source. They also grew with organic acids, ethanol, yeast extract and peptone. The isolates were capable of either </span>anaerobic respiration with nitrate or </span>nitrous oxide as the electron acceptors or aerobic respiration under microaerobic condition. The total size of the genome of strains SB48</span><sup>T</sup><span> and SN1189 was 4.71 and 5.13 Mbp, respectively. Based on phenotypic and phylogenetic characteristics, strains SB48</span><sup>T</sup> and SN1189 represent a novel species of the genus <em>Sedimenticola</em>, <em>S. hydrogenitrophicus</em> (the type strain is SB48<sup>T</sup> = KCTC 25568 <sup>T</sup> = VKM B-3680 <sup>T</sup>). The new isolates are the first representatives of the genus <em>Sedimenticola</em><span> isolated from a terrestrial ecosystem<span>. Based on phylogenomic reconstruction we propose to include the genus </span></span><em>Sedimenticola</em> and the related genera into a new family <em>Sedimenticolaceae</em> fam. nov. within the order <em>Chromatiales</em>.</p></div>\",\"PeriodicalId\":22124,\"journal\":{\"name\":\"Systematic and applied microbiology\",\"volume\":\"46 5\",\"pages\":\"Article 126451\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2023-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Systematic and applied microbiology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0723202023000607\",\"RegionNum\":2,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Systematic and applied microbiology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0723202023000607","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
Sedimenticola hydrogenitrophicus sp. nov. a chemolithoautotrophic bacterium isolated from a terrestrial mud volcano, and proposal of Sedimenticolaceae fam. nov. in the order Chromatiales
Chemolithoautotrophic microorganisms can play a significant role in the biogeochemical cycling of elements in deep-subsurface-associated environments. A novel facultatively anaerobic lithoautotrophic bacteria (strains SB48T and SN1189) were isolated from terrestrial mud volcanoes (Krasnodar Krai, Russia). Cells of the strains were straight motile rods. Growth was observed at temperatures up to 35 °C (optimum at 30 °C), pH 6.0–8.5 (optimum at pH 7.5) and NaCl concentrations of 0.5–4.0% (w/v) (optimum at 1.5–2.0% (w/v)). The isolates grew chemolithoautotrophically with molecular hydrogen or thiosulfate as an electron donor, nitrate as an electron acceptor and CO2/HCO3− as a carbon source. They also grew with organic acids, ethanol, yeast extract and peptone. The isolates were capable of either anaerobic respiration with nitrate or nitrous oxide as the electron acceptors or aerobic respiration under microaerobic condition. The total size of the genome of strains SB48T and SN1189 was 4.71 and 5.13 Mbp, respectively. Based on phenotypic and phylogenetic characteristics, strains SB48T and SN1189 represent a novel species of the genus Sedimenticola, S. hydrogenitrophicus (the type strain is SB48T = KCTC 25568 T = VKM B-3680 T). The new isolates are the first representatives of the genus Sedimenticola isolated from a terrestrial ecosystem. Based on phylogenomic reconstruction we propose to include the genus Sedimenticola and the related genera into a new family Sedimenticolaceae fam. nov. within the order Chromatiales.
期刊介绍:
Systematic and Applied Microbiology deals with various aspects of microbial diversity and systematics of prokaryotes. It focuses on Bacteria and Archaea; eukaryotic microorganisms will only be considered in rare cases. The journal perceives a broad understanding of microbial diversity and encourages the submission of manuscripts from the following branches of microbiology: