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Riemerella Columbina
''Riemerella'' is a Gram-negative, non-spore-forming and non-motile genus of bacteria from the family of Weeksellaceae ''Weeksellaceae'' is a family in the order Flavobacteriales. It was proposed to be split from the Flavobacteriaceae in 2019, based on phylogenetic analysis. Genera The family ''Weeksellaceae'' comprises the following genera: * '' Algoriella'' Y ....''Riemerella'' is named after O.V. Riemer. References Flavobacteria Bacteria genera Taxa described in 1993 {{Flavobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riemerella Anatipestifer
''Riemerella anatipestifer'' is a member of the Flavobacteriaceae family. It is a Gram-negative bacterium that causes septicaemia and death in young ducks and geese throughout the world. There are 21 known serotypes and infection is spread horizontally between birds. Infection may be referred to as duck septicaemia, goose flu, riemerellosis, new duck disease and polyserositis. Clinical signs and diagnosis Clinical signs are most commonly seen in birds between the ages of 1–8 weeks old. Systemic infection is most common, producing a variety of clinical signs. These include diarrhoea, pyrexia, anorexia, stunted growth, respiratory signs (e.g. coughing), neurological abnormalities (e.g. convulsions), and ocular signs. These signs are rapidly followed by death in many birds. Infection may localise in chronic cases. On post-mortem, a yellow-white exudate and congestion can be seen throughout the body. The signs seen on clinical exam and postmortem are normally sufficient to mak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riemerella Columbina
''Riemerella'' is a Gram-negative, non-spore-forming and non-motile genus of bacteria from the family of Weeksellaceae ''Weeksellaceae'' is a family in the order Flavobacteriales. It was proposed to be split from the Flavobacteriaceae in 2019, based on phylogenetic analysis. Genera The family ''Weeksellaceae'' comprises the following genera: * '' Algoriella'' Y ....''Riemerella'' is named after O.V. Riemer. References Flavobacteria Bacteria genera Taxa described in 1993 {{Flavobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riemerella Columbipharyngis
''Riemerella columbipharyngis'' is a bacterium from the genus of '' Riemerella'' which has been isolated from the pharynx of a domestic pigeon The domestic pigeon (''Columba livia domestica'' or ''Columba livia'' Form (zoology), forma ''domestica'') is a pigeon subspecies that was derived from the rock dove, rock dove or rock pigeon. The rock pigeon is the world's oldest domesticated .... References Flavobacteria Bacteria described in 2013 {{Flavobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram-negative
Gram-negative bacteria are bacteria that, unlike gram-positive bacteria, do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. Their defining characteristic is that their cell envelope consists of a thin peptidoglycan cell wall sandwiched between an inner ( cytoplasmic) membrane and an outer membrane. These bacteria are found in all environments that support life on Earth. Within this category, notable species include the model organism '' Escherichia coli'', along with various pathogenic bacteria, such as '' Pseudomonas aeruginosa'', '' Chlamydia trachomatis'', and '' Yersinia pestis''. They pose significant challenges in the medical field due to their outer membrane, which acts as a protective barrier against numerous antibiotics (including penicillin), detergents that would normally damage the inner cell membrane, and the antimicrobial enzyme lysozyme produced by animals as part of their innate immune system. Furthe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spore
In biology, a spore is a unit of sexual reproduction, sexual (in fungi) or asexual reproduction that may be adapted for biological dispersal, dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the Biological life cycle, life cycles of many plants, algae, fungus, fungi and protozoa. They were thought to have appeared as early as the mid-late Ordovician period as an adaptation of early land plants. Bacterial spores are not part of a sexual cycle, but are resistant structures used for survival under unfavourable conditions. Myxozoan spores release amoeboid infectious germs ("amoebulae") into their hosts for parasitic infection, but also reproduce within the hosts through the pairing of two nuclei within the plasmodium, which develops from the amoebula. In plants, spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. In some rare cases, a diploid spore is also p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weeksellaceae
''Weeksellaceae'' is a family in the order Flavobacteriales. It was proposed to be split from the Flavobacteriaceae in 2019, based on phylogenetic analysis. Genera The family ''Weeksellaceae'' comprises the following genera: * '' Algoriella'' Yang ''et al''. 2016 * ''Apibacter'' Kwong and Moran 2016 * '' Bergeyella'' Vandamme ''et al''. 1994 * '' Chishuiella'' Zhang ''et al''. 2014 * '' Chryseobacterium'' Vandamme ''et al''. 1994 * '' Cloacibacterium'' Allen ''et al''. 2006 * '' Cruoricaptor'' Yassin ''et al''. 2013 * '' Elizabethkingia'' Kim ''et al''. 2005 * '' Empedobacter'' (''ex'' Prévot 1961) Vandamme ''et al''. 1994 * '' Frigoriflavimonas'' Menes et al. 2022 * '' Moheibacter'' Zhang ''et al''. 2014 * '' Ornithobacterium'' Vandamme ''et al''. 1994 * '' Riemerella'' Segers ''et al''. 1993 * '' Spongiimonas'' Yoon ''et al''. 2014 * '' Wautersiella'' Kämpfer ''et al''. 2006 * '' Weeksella'' Holmes ''et al''. 1987 Phylogeny The currently accepted taxonomy is based on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flavobacteria
The class Flavobacteriia is composed of a single class of environmental bacteria. It contains the family Flavobacteriaceae, which is the largest family in the phylum Bacteroidota. This class is widely distributed in soil, fresh, and seawater habitats. The name is often spelt Flavobacteria, but was officially named Flavobacteriia in 2012. Flavobacteriia are gram-negative aerobic rods, 2–5 μm long, 0.1–0.5 μm wide, with rounded or tapered ends. They form circular cream to orange coloured colonies on agar, and are typically simple to successfully culture. Flavobacteriia is a chemoorganotroph and are known for their ability to mineralize or degrade dissolved organic matter of high molecular weight and particulate plant material. Flavobacteriia have impacts on both the environment and human society, as they are able to cause diseases in many organisms. They are important in the decomposition of organic matter and pollutants, and are key members in the formation of marin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria Genera
This article lists the genera of the bacteria Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr .... The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are taken from the GTDB release 08-RS214 (28 April 2023). Phyla List Notes: List of clades needed to be added: * Actinomycetota > Actinomycetia > Actinobacteridae * Bacteroidota > Bacteroidia * Cyanobacteriota > Cyanobacteria * Pseudomonadota (Proteobacteria s.s.) > " Caulobacteria", " Pseudomonadia" See also * Branching order of bacterial phyla (Woese, 1987) * Branching order of bacterial phyla (Gupta, 2001) * Branching order of bacterial phyla (Cavalier-Smith, 2002) * B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
