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Acidobacteriota is a phylum of Gram-negative bacteria. Its members are physiologically diverse and ubiquitous, especially in soils, but are under-represented in culture.
Ensifer meliloti are an aerobic, Gram-negative, and diazotrophic species of bacteria. S. meliloti are motile and possess a cluster of peritrichous flagella. S. meliloti fix atmospheric nitrogen into ammonia for their legume hosts, such as alfalfa. S. meliloti forms a symbiotic relationship with legumes from the genera Medicago, Melilotus and Trigonella, including the model legume Medicago truncatula. This symbiosis promotes the development of a plant organ, termed a root nodule. Because soil often contains a limited amount of nitrogen for plant use, the symbiotic relationship between S. meliloti and their legume hosts has agricultural applications. These techniques reduce the need for inorganic nitrogenous fertilizers.
Thermus thermophilus is a Gram-negative bacterium used in a range of biotechnological applications, including as a model organism for genetic manipulation, structural genomics, and systems biology. The bacterium is extremely thermophilic, with an optimal growth temperature of about 65 °C (149 °F). Thermus thermophilus was originally isolated from a thermal vent within a hot spring in Izu, Japan by Tairo Oshima and Kazutomo Imahori. The organism has also been found to be important in the degradation of organic materials in the thermogenic phase of composting. T. thermophilus is classified into several strains, of which HB8 and HB27 are the most commonly used in laboratory environments. Genome analyses of these strains were independently completed in 2004. Thermus also displays the highest frequencies of natural transformation known to date.
Mycobacterium marinum is a slow growing fresh and saltwater mycobacterium (SGM) belonging to the genus Mycobacterium and the phylum Actinobacteria. It was formerly known as Mycobacterium balnei. The strain marinum was first identified by Joseph D. Aronson in 1926 and it is observed as a pathogenic mycobacterium causing tuberculosis-like infections in fish (mycobacteriosis) and skin lesions in humans. The bacteria grows optimal at a temperature around 30 °C.
Pseudomonas stutzeri is a Gram-negative soil bacterium that is motile, has a single polar flagellum, and is classified as bacillus, or rod-shaped. While this bacterium was first isolated from human spinal fluid, it has since been found in many different environments due to its various characteristics and metabolic capabilities. P. stutzeri is an opportunistic pathogen in clinical settings, although infections are rare. Based on 16S rRNA analysis, this bacterium has been placed in the P. stutzeri group, to which it lends its name.
Plagiopyla is a genus of ciliates. It includes nine species:
Bradyrhizobium japonicum is a species of legume-root nodulating, microsymbiotic nitrogen-fixing bacteria. The species is one of many Gram-negative, rod-shaped bacteria commonly referred to as rhizobia. Within that broad classification, which has three groups, taxonomy studies using DNA sequencing indicate that B. japonicum belongs within homology group II.
Methylocella silvestris is a bacterium from the genus Methylocella spp which are found in many acidic soils and wetlands. Historically, Methylocella silvestris was originally isolated from acidic forest soils in Germany, and it is described as Gram-negative, aerobic, non-pigmented, non-motile, rod-shaped and methane-oxidizing facultative methanotroph. As an aerobic methanotrophic bacteria, Methylocella spp use methane (CH4), and methanol as their main carbon and energy source, as well as multi compounds acetate, pyruvate, succinate, malate, and ethanol. They were known to survive in the cold temperature from 4° to 30° degree of Celsius with the optimum at around 15° to 25 °C, but no more than 36 °C. They grow better in the pH scale between 4.5 to 7.0. It lacks intracytoplasmic membranes common to all methane-oxidizing bacteria except Methylocella, but contain a vesicular membrane system connected to the cytoplasmic membrane. BL2T (=DSM 15510T=NCIMB 13906T) is the type strain.
Desulfitobacterium hafniense is a species of gram positive bacteria, its type strain is DCB-2T..
Pedobacter arcticus is a species of facultative psychrophile bacteria isolated from Arctic soil. It is gram-negative, short rod-shaped and motile, with type strain A12(T). Its genome has been sequenced.
Pedobacter agri is a species of Gram-negative bacteria. Its genome has been sequenced. Its type strain is PB92(T).
Syntrophobacter fumaroxidans is a species of syntrophic propionate-degrading sulfate-reducing bacterium. Strain MPOBT is the type strain. Its genome has been fully sequenced.
Helicobacter canadensis is a bacterium in the Helicobacteraceae family, Campylobacterales order, first isolated from humans with diarrhea. Its genome has been sequenced.
Methanosaeta concilii is an archaeum in the disputed genus Methanosaeta. It is obligately anaerobic, gram-negative and non-motile. It is rod-shaped with flat ends. The cells are enclosed within a cross-striated sheath. The type strain is GP6. Its genome has been sequenced.
Thermoanaerobacterium aotearoense is a slightly acidophilic, anaerobic, thermophile first isolated from hot springs in New Zealand, hence its name. It is Gram-negative, peritrichously flagellated, rod-shaped forming oval terminal endospores. Strain JW/SL-NZ613T is its type strain. Its genome has been sequenced.
Ehrlichia muris is a species of pathogenic bacteria first isolated from mice, with type strain AS145T. Its genome has been sequenced.
Intrasporangium is a genus of Gram positive, nonmotile bacteria. The genus name refers to the mycelium of the type strain forming intercalary vesicles that were originally identified as spores. However, no spores have been observed in later studies. The family Intrasporangiaceae is named after the genus, and Intrasporangium is the type genus for the family.
Opitutus is a genus of bacteria from the family of Opitutaceae with one known species.
The species Rhizorhabdus wittichii, formerly Sphingomonas wittichii, is a Gram-negative, rod-shaped motile bacterium, with an optimum growth temperature at 30 °C. It forms a greyish white colony. It has been found to have a 67 mol% of DNA G+C content.
References
- ↑ Chin, K. J.; Liesack, W.; Janssen, P. H. (2001). "Opitutus terrae gen. nov., sp. nov., to accommodate novel strains of the division 'Verrucomicrobia' isolated from rice paddy soil". International Journal of Systematic and Evolutionary Microbiology. 51 (6): 1965–1968. doi: 10.1099/00207713-51-6-1965 . ISSN 1466-5026. PMID 11760935.
- ↑ van Passel, M. W. J.; Kant, R.; Palva, A.; Copeland, A.; Lucas, S.; Lapidus, A.; Glavina del Rio, T.; Pitluck, S.; Goltsman, E.; Clum, A.; Sun, H.; Schmutz, J.; Larimer, F. W.; Land, M. L.; Hauser, L.; Kyrpides, N.; Mikhailova, N.; Richardson, P. P.; Janssen, P. H.; de Vos, W. M.; Smidt, H. (2011). "Genome Sequence of the Verrucomicrobium Opitutus terrae PB90-1, an Abundant Inhabitant of Rice Paddy Soil Ecosystems". Journal of Bacteriology. 193 (9): 2367–2368. doi:10.1128/JB.00228-11. ISSN 0021-9193. PMC 3133072 . PMID 21398538.
