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Pseudomonadota (synonym Proteobacteria) is a major phylum of Gram-negative bacteria. [10] Currently, they are considered the predominant phylum within the realm of bacteria. [11] They are naturally found as pathogenic and free-living (non-parasitic) genera. [11]
Proteobacteria is a phylum of gram-negative bacteria discovered by Carl Woese in the 1980s based on nucleotide sequence homology. Proteobacteria are further classified into the classes alpha-, beta-, gamma-, delta- and epsilonproteobacteria, each class having separate orders, families, genera, and species.
The Proteobacteria are a most important phylum of Gram-negative bacteria. They include a wide variety of pathogenic genera, which are also responsible for fixing nitrogen. Proteobacteria can be further divided into five subgroups as α, β, γ, δ, and ε.
The Proteobacteria are a major group (phylum) of bacteria. They include a wide variety of pathogens, such as Escherichia, Salmonella, Vibrio, Helicobacter, and many other notable genera. Others are free-living, and include many of the bacteria responsible for nitrogen fixation.
The Proteobacteria, formerly known as “purple bacteria and relatives,” are characterized by a bewildering diversity of morphological and physiological types: besides rods and cocci, curved, spiral, ring-shaped, appendaged, filamentous and sheathed bacteria occur among this phylum.
Describe the unique features of each class within the phylum Proteobacteria: Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Deltaproteobacteria, and Epsilonproteobacteria; Give an example of a bacterium in each class of Proteobacteria
Proteobacteria is an evolutionarily, geologically, and environmentally important group of microorganisms. All proteobacteria are Gram-negative bacteria, with an outer membrane mainly composed of lipopolysaccharides.
Learning Objectives. Describe the unique features of each class within the phylum Proteobacteria: Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Deltaproteobacteria, and Epsilonproteobacteria. Give an example of a bacterium in each class of Proteobacteria.
Proteobacteria is a phylum of gram-negative bacteria discovered by Carl Woese in the 1980s based on nucleotide sequence homology. Proteobacteria are further classified into the classes alpha-, beta-, gamma-, delta- and epsilonproteobacteria, each class having separate orders, families, genera, and species.
Proteobacteria is one of the largest and phenotypically most diverse divisions within the domain bacteria. Due to the economic importance, this phylum demands an urgent need for a clear and scientifically sound classification system to streamline their characterization.