Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/43306

TítuloDesulfurella amilsii sp. nov., a novel acidotolerant sulfur-respiring bacterium isolated from acidic river sediments
Autor(es)Florentino, Anna P.
Brienza, Claudio
Stams, Alfons Johannes Maria
Sánchez-Andrea, Irene
EditoraSociety for General Microbiology
RevistaInternational Journal of Systematic and Evolutionary Microbiology
CitaçãoFlorentino, Anna P.; Brienza, Claudio; Stams, A. J. M.; Sánchez-Andrea, Irene, Desulfurella amilsii sp. nov., a novel acidotolerant sulfur-respiring bacterium isolated from acidic river sediments. International Journal of Systematic and Evolutionary Microbiology, 66(3), 1249-1253, 2016
Resumo(s)A novel acidotolerant and moderately thermophilic sulfur-reducing bacterium was isolated from sediments of the Tinto River (Spain), an extremely acidic environment. Strain TR1T stained Gram-negative, and was obligately anaerobic, non-spore-forming and motile. Cells were short rods (1.52×0.50.7 m), appearing singly or in pairs. Strain TR1T was catalase-negative and slightly oxidase-positive. Urease activity and indole formation were absent, but gelatin hydrolysis was present. Growth was observed at 2052 °C with an optimum close to 50 °C, and a pH range of 37 with optimum between pH 6 and 6.5. Yeast extract was essential for growth, but extra vitamins were not required. In the presence of sulfur, strain TR1T grew with acetate, formate, lactate, pyruvate, stearate, arginine and H2/CO2. All substrates were completely oxidized and H2S and CO2 were the only metabolic products detected. Besides elemental sulfur, thiosulfate was used as an electron acceptor. The isolate also grew by disproportionation of elemental sulfur. The predominant cellular fatty acids were saturated components: C16: 0, anteiso-C17: 0 and C18: 0. The only quinone component detected was menaquinone MK-7(H2). The G+C content of the genomic DNA was 34 mol%. The isolate is affiliated to the genus Desulfurella of the class Deltaproteobacteria, sharing 97% 16S rRNA gene sequence similarity with the four species described in the genus Desulfurella. Considering the distinct physiological and phylogenetic characteristics, strain TR1T represents a novel species within the genus Desulfurella, for which the name Desulfurella amilsii sp. nov. is proposed. The type strain is TR1T (=DSM 29984T=JCM 30680T).
DescriçãoThe GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of Desulfurella amilsii strain TR1T is LN624414.
Arbitragem científicayes
Aparece nas coleções:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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