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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. [1] Their defining characteristic is that their cell envelope consists of a thin peptidoglycan cell wall sandwiched between an inner ( cytoplasmic ) membrane and an outer ...
Species of the Methylocystaceae are methanotrophs; they use methanol (CH 3 OH) or methane (CH 4) as their sole energy and carbon sources. Other important genera are the human pathogens Bartonella and Brucella , as well as Agrobacterium , an important tool in genetic engineering .
Enterobacteriaceae is a large family of Gram-negative bacteria.It includes over 30 genera and more than 100 species. Its classification above the level of family is still a subject of debate, but one classification places it in the order Enterobacterales of the class Gammaproteobacteria in the phylum Pseudomonadota.
Burkholderia cepacia complex Scientific classification Domain: Bacteria Phylum: Pseudomonadota Class: Betaproteobacteria Order: Burkholderiales Family: Burkholderiaceae Genus: Burkholderia Species complex: B. cepacia complex Burkholderia cepacia complex (BCC) is a species complex consisting of Burkholderia cepacia and at least 20 different biochemically similar species of Gram-negative ...
The phylum Bacteroidota (synonym Bacteroidetes) is composed of three large classes of Gram-negative, nonsporeforming, anaerobic or aerobic, and rod-shaped bacteria that are widely distributed in the environment, including in soil, sediments, and sea water, as well as in the guts and on the skin of animals.
The first species of Roseomonas were identified when 42 strains of pink-pigmented bacteria from various clinical sources were examined. While similar to characteristics of genus Methylobacterium , the strains were found to contain three new species of a previously unidentified genus, which led to the creation of genus Roseomonas .
Gammaproteobacteria is a class of bacteria in the phylum Pseudomonadota (synonym Proteobacteria). It contains about 250 genera, which makes it the most genus-rich taxon of the Prokaryotes. [1] Several medically, ecologically, and scientifically important groups of bacteria belong to this class. All members of this class are Gram-negative.
Hyphomicrobium is a genus of Gram-negative, non-spore-forming, rod-shaped bacteria from the family of Hyphomicrobiaceae. [1] [2] [3] [4] [5] [6] It has a large polar ...