Bacteroides


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Related to Bacteroides: clostridium, Bacteroides thetaiotaomicron, Fusobacterium

Bacteroides

 [bak″tĕ-roi´dēz]
a genus of gram-negative, anaerobic, rod-shaped bacteria. Organisms are part of the normal flora of the oral, respiratory, intestinal, and urogenital cavities of humans and animals; some species are potential pathogens, causing possibly fatal abscesses and bacteremias. Pathogenic species include B. asaccharoly´ticus; B. fra´gilis, the most common anaerobic bacterium causing human infection, most frequently implicated in intra-abdominal infections, but found in bacteremias, abscesses, and other lesions throughout the body; B. fundibulifor´mis, an animal pathogen also found in chronic ulcer of the colon in humans; B. melaninoge´nicus, which occurs in oral, lung, and brain abscesses and in mixed infections; and B. thetaiotaomi´cron, the second most common anaerobic bacterium causing human infection (after B. fragilis).

bacteroides

 [bak″tĕ-roi´dēz]
1. any rod-shaped bacteria that can take many different shapes.
2. an organism of the genus Bacteroides.

Bacteroides

(bak'ter-oy'dēz),
A genus that includes many species of obligate anaerobic, non-spore-forming bacteria (family Bacteroidaceae) containing gram-negative rods. Both motile and nonmotile species occur; motile cells are peritrichous. Some species ferment carbohydrates and produce combinations of succinic, lactic, acetic, formic, or propionic acids, sometimes with short-chained alcohols; butyric acid is not a major product. Those species that do not ferment carbohydrates produce from peptone either trace to moderate amounts of succinic, formic, acetic, and lactic acids or major amounts of acetic and butyric acids with moderate amounts of alcohols and isovaleric, propionic, and isobutyric acids. They are part of the normal flora of the intestinal tract and to a lesser degree, the respiratory and urogenital cavities of humans and animals; many species formerly classified as Bacteroides have been reclassified as belonging to the genus Prevotella. Many species can be pathogenic. The type species is Bacteroides fragilis.
[G. bacterion + eidos, form]

Bacteroides

/Bac·te·roi·des/ (bak″ter-oi´dēz) a genus of gram-negative, anaerobic, rod-shaped bacteria, which are normal inhabitants of the oral, respiratory, intestinal, and urogenital cavities of humans and animals; some species can cause potentially fatal abscesses and bacteremias.

bacteroides

/bac·te·roi·des/ (bak″ter-oi´dēz)
1. any highly pleomorphic rod-shaped bacteria.
2. an organism of the genus Bacteroides.

Bacteroides

[bak′təroi′dēz]
Etymology: Gk, bakterion, small staff, eidos, form
a genus of obligate anaerobic bacilli normally found in the colon, mouth, genital tract, and upper respiratory system. Severe infection may result from the invasion of the bacillus through a break in the mucous membrane into the venous circulation, where thrombosis and bacteremia may occur. Foul-smelling abscesses, gas, and putrefaction are characteristic of infection with this organism. Of the 30 species, Bacteroides fragilis is the most common and most virulent.

Bac·te·roi·des

(bak-ter-oy'dēz)
A genus that includes species of obligate anaerobic, non-spore-forming bacteria (family Bacteroidaceae) containing gram-negative rods. Both motile and nonmotile species occur; motile cells are peritrichous. Some species ferment carbohydrates and produce combinations of succinic, lactic, acetic, formic, or propionic acids, sometimes with short-chained alcohols; butyric acid is not a major product. Those species that do not ferment carbohydrates produce from peptone either trace to moderate amounts of succinic, formic, acetic, and lactic acids or major amounts of acetic and butyric acids with moderate amounts of alcohols and isovaleric, propionic, and isobutyric acids. They are part of the normal flora of the intestinal tract and, to a lesser degree, the respiratory, and urogenital cavities of humans and animals. A number of Bacteroides species have been reclassified as belonging to the genus Prevotella. Many species can be pathogenic. The type species is B. fragilis.
[G. bacterion + eidos, form]

Bacteroides

A genus of GRAM NEGATIVE, non-motile, ANAEROBIC bacteria normally occurring in the mouth and digestive tract. Some species can cause disease.

Bacteroides

a GENUS of ANAEROBIC, Gram-negative BACTERIA (see GRAM'S STAIN), found in man and other animals. Some SPECIES are OPPORTUNISTIC PATHOGENS. INFECTIONS due to Bacteroides are often a cause of peritonitis.

Bac·te·roi·des

(bak-ter-oy'dēz)
A genus that includes many species of obligate anaerobic, non-spore-forming bacteria containing gram-negative rods. Both motile and nonmotile species occur; motile cells are peritrichous. They are part of the normal flora of the intestinal tract and to a lesser degree, the respiratory and urogenital cavities of humans and animals; many species formerly classified as Bacteroides have been reclassified as belonging to the genus Prevotella. Many species can be pathogenic.
[G. bacterion + eidos, form]

Bacteroides

a genus of the family Bacteroidaceae, a family of gram-negative, non-spore-forming, obligate anaerobes. Common inhabitants of the alimentary tract and necrotic tissue, probably as secondary invaders.

Bacteroides amylophilus
Bacteroides asaccharolyticus
Bacteroides fragilis
occasionally infects foals, pigs, lambs and calves, causing diarrhea, mastitis and abscesses.
Bacteroides gingivalis
Bacteroides heparinolyticus
Bacteroides levii
see Porphyromonaslevii.
Bacteroides melaninogenicus
see Prevotellamelaninogenica.
Bacteroides nodosus
Bacteroides ruminicola
see Prevotellaruminicola.
Bacteroides salivosus
see Porphyromonassalivosus.
Bacteroides succinogenes
Bacteroides ureolyticus
gram-negative, microaerophilic bacterial species isolated from the genital tract of mares with endometritis.

bacteroides

1. any highly pleomorphic rod-shaped bacteria.
2. an organism of the genus Bacteroides.
References in periodicals archive ?
Background: To review the presentation of Bacteroides fragilis (B fragilis) spondylodiscitis.
Significant values of correlation coefficient were found between phenol, indole, iso-butyric acid and iso-valeric acid with Atopostipes, p-cresol and skatole with Bacteroides, acetic acid and butyric acid with AM982595_g of Porphyromonadaceae family, and propionic acid with Tissierella.
The researchers now plan to expand the application of their tools to different species of Bacteroides.
A major goal of this project is to solve the structure of the Bacteroides vulgatus H+/Na+-pumping M-PPase to guide mutational studies to determine how M-PPases select for ions and to explore how the ion gate is opened and closed during ion pumping.
2010] and Bacteroides hypothetical human-specific protein [Bacteroides HumM2] [Shanks et al.
Modulation of bft expression by the Bacteroides fragilis pathogenicity island and its flanking region.
The most common organisms in the hospital sepsis cohort Organism n Escherichia coli 3 Alpha streptococci 3 Beta hemolytic streptococci 3 Staphylococcus aureus 2 Coagulase-negative staphylococci 2 Bacteroides fragilis 1 Proteus mirabilis 1 Klebsiella pneumoniae 1 Streptococcus pneumoniae 1 Enterococcus faecalis 1 Propionibacterium acnes 1 Capnocytophaga canimorsus 1
1) There are 100 large groups (or "phyla") of bacteria, but we're dominated by four: Acinetobacteria, Bacteroides, Proteohacteria, and Firmicutes.
The pigs were also given one of three bacterial supplements the scientists developed from different strains of Bacteroides ovatus, which had been obtained from human fecal samples and cultured in fiber-rich media.
Brumer asserted that the newly discovered sequence of genes enables Bacteroides ovatus and its complex system of enzymes to chop up xyloglucan, a major type of dietary fibre found in many vegetables - from lettuce leaves to tomato fruits.
Options: Acinetobacter species, Actinobacillus species, Bacteroides fragilis, Bacteroides sp.
The lower abundance of Bacteroides among the C-section infants may be a contributing factor to the observed differences in the Th1-associated chemokines.