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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/143425

Fervidobacterium thailandense sp. nov., an extremely thermophilic bacterium isolated from a hot spring

AutorKanoksilapatham, W.; Pasomsup, P.; Keawram, P.; Cuecas, Alba ; Portillo Guisado, María del Carmen ; González Grau, Juan Miguel
Palabras claveThermotogae
Hot springs
Fervidobacterium thailandense
Extreme thermophile
Fecha de publicación1-dic-2016
EditorMicrobiology Society
CitaciónInternational Journal of Systematic and Evolutionary Microbiology 66(12) 5023-5027 (2016)
ResumenStrain FC2004T, a strictly anaerobic, extremely thermophilic heterotroph, was isolated from a hot spring in Thailand. Typical cells of strain FC2004T were rod shaped (0.5–0.6×1.1–2.5 µm) with an outer membrane swelling out over an end. Filaments (10–30 µm long) and membrane-bound spheroids containing two or more cells inside (3–8 µm in diameter) were observed. The temperature range for growth was 60–88°C (optimum 78–80°C), pH range was 6.5–8.5 (optimum pH 7.5) and NaCl concentration range was 0 to <5 g l−1 (optimum 0.5 g l−1). S0 stimulated growth yield. S2O3 2– and NO3 − did not influence growth. Glucose, maltose, sucrose, fructose, cellobiose, CM-cellulose and starch were utilized for growth. The membrane was composed mainly of the saturated fatty acids C16:0 and C18:0. The DNA G+C content was 45.8 mol%. The 16S rRNA gene sequence of strain FC2004T revealed highest similarity to species of the genus Fervidobacterium : F. pennivorans DSM 9078T (97–96 %), F. islandicum AW-1 (96 %), F. changbaicum CBS-1T (96 %), F. islandicum H21T (95 %), F. nodosum Rt17-B1T (95 %), F. riparium 1445tT (95 %) and F. gondwanense AB39T (93 %). Phylogenetic analysis of 16S rRNA gene sequences and average nucleotide identity analysis suggested that strain FC2004T represented a novel species within the genus Fervidobacterium , for which the name Fervidobacterium thailandense sp. nov. is proposed. The type strain is FC2004T (=JCM 18757T=ATCC BAA-2483T).
Descripción4 páginas.-- 2 figuras.-- 19 referencias.-- Two supplementary tables and four supplementary figures are available with the online Supplementary Material.
Versión del editorhttp://dx.doi.org/10.1099/ijsem.0.001620
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