Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Sanchez-Porro, C; Amoozegar, MA; Rohban, R; Hajighasemi, M; Ventosa, A.
Thalassobacillus cyri sp. nov., a moderately halophilic Gram-positive bacterium from a hypersaline lake.
Int J Syst Evol Microbiol. 2009; 59(Pt 10): 2565-2570.
Doi: 10.1099/ijs.0.010488-0
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- Co-Autor*innen der Med Uni Graz
- Rohban Rokhsareh
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- Abstract:
- A Gram-positive, moderately halophilic bacterium, designated strain HS286(T), was isolated from water of the hypersaline Lake Howz-Soltan in Iran. Cells were strictly aerobic, rod-shaped, motile and able to produce ellipsoidal endospores at a central-subterminal position in swollen sporangia. Isolate HS286(T) grew in a complex medium supplemented with 1-15 % (w/v) NaCl, with optimum growth at 8.0 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequence comparisons showed that strain HS286(T) was closely related to Thalassobacillus devorans G-19.1(T) (99.4 % gene sequence similarity). The other closest species were Halobacillus yeomjeoni MSS-402(T) (96.9 %) and other species of the genus Halobacillus (with 96.7-93.5 % similarity). Strain HS286(T) had cell-wall peptidoglycan based on meso-diaminopimelic acid and MK-7 as the respiratory isoprenoid quinone. The major fatty acids were anteiso-C(15 : 0) (43.8 %), iso-C(16 : 0) (21.4 %), iso-C(14 : 0) (9.4 %), anteiso-C(17 : 0) (8.7 %) and iso-C(15 : 0) (7.0 %) and the polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol, two phospholipids and a glycolipid. The DNA G+C content was 43.0 mol%. All of these features confirmed the placement of isolate HS286(T) within the genus Thalassobacillus. However DNA-DNA hybridization between strain HS286(T) and the only recognized species of the genus Thalassobacillus, T. devorans G-19.1(T), was 27.3 %, showing unequivocally that the novel isolate constituted a new genospecies. Strain HS286(T) could be clearly differentiated from T. devorans and other phylogenetic neighbours on the basis of several phenotypic, genotypic and chemotaxonomic features. Therefore, strain HS286(T) constitutes a novel species, for which the name Thalassobacillus cyri sp. nov. is proposed. The type strain is HS286(T) (=CCM 7597(T)=JCM 15722(T)).
- Find related publications in this database (using NLM MeSH Indexing)
- Bacillaceae - classification
- Bacillaceae - genetics
- Bacillaceae - isolation & purification
- Bacillaceae - metabolism
- Base Composition -
- DNA, Bacterial - genetics
- DNA, Ribosomal - genetics
- Fatty Acids - chemistry
- Fatty Acids - metabolism
- Molecular Sequence Data -
- Phylogeny -
- RNA, Ribosomal, 16S - genetics
- Sodium Chloride - metabolism
- Water Microbiology -