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Truepera radiovictrix gen. nov., sp. nov., a new radiation resistant species and the proposal of Trueperaceae fam. nov.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Albuquerque, Luciana A. L. Simões, Catarina Nobre, Maria Fernanda Pino, Nicole M. Battista, John R. Silva, Manuel Rainey, Fred A. Costa, Milton S. Da |
| Copyright Year | 2005 |
| Abstract | Two isolates, belonging to a new species of a novel genus of the Phylum "Deinococcus/Thermus ", were recovered from hot spring runoffs on the Island of São Miguel in the Azores. Strains RQ-24(T) and TU-8 are the first cultured representatives of a distinct phylogenetic lineage within this phylum. These strains form orange/red colonies, spherical-shaped cells, have an optimum growth temperature of about 50 degrees C, an optimum pH for growth between about 7.5 and 9.5, and do not grow at pH below 6.5 or above pH 11.2. These organisms grow in complex media without added NaCl, but have a maximum growth rate in media with 1.0% NaCl and grow in media containing up to 6.0% NaCl. The organisms are extremely ionizing radiation resistant; 60% of the cells survive 5.0 kGy. These strains are chemoorganotrophic and aerobic; do not grow in Thermus medium under anaerobic conditions with or without nitrate as electron acceptor and glucose as a source of carbon and energy, but ferment glucose to D-lactate without formation of gas. The organisms assimilate a large variety of sugars, organic acids and amino acids. Fatty acids are predominantly iso- and anteiso-branched; long chain 1,2 diols were also found in low relative proportions; menaquinone 8 (MK-8) is the primary respiratory quinone. Peptidoglycan was not detected. Based on 16S rRNA gene sequence analysis, physiological, biochemical and chemical analysis we describe a new species of one novel genus represented by strain RQ-24(T) (CIP 108686(T)=LMG 22925(T)=DSM 17093(T)) for which we propose the name Truepera radiovictrix. We also propose the family Trueperaceae fam. nov. to accommodate this new genus. |
| Starting Page | 239 |
| Ending Page | 243 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://cnc.cj.uc.pt/BEB/private/pdfs/microbiology0607/2-%20A%20new%20radiation-resistant%20bacterium%20from%20Azores.pdf |
| PubMed reference number | 15927420v1 |
| Volume Number | 247 |
| Issue Number | 2 |
| Journal | FEMS microbiology letters |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | 1,4-benzoquinone Amino Acids Deinococcus Fatty Acids GEN1 gene Genus Glucose Hot Springs Ionizing radiation L-Lactate dehydrogenase (cytochrome) NCI Cancer Imaging Program Nitrate Organic acid (substance) Oxidants Phylum (taxon) Sequence Analysis Sodium Chloride Sugars Truepera radiovictrix Trueperaceae USP9X gene Vitamin K 2 doxorubicin/floxuridine/mitomycin protocol |
| Content Type | Text |
| Resource Type | Article |
