Anaerobic bacteria


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anaerobic bacteria

Bacteria which grow without O2, either by metabolic necessity (obligate anaerobes) or by preference (facultative anaerobes). Anaerobes are the primary pathogens of wound infections. Specimens obtained from patients in whom an anaerobic infection is suspected require special handling, as O2 (i.e., open air) is toxic to cultures and they may present as “culture-negative” if exposed; once the specimen arrives in the lab, it is processed under conditions of decreased O2, and any bacteria identified are recultured to determine their sensitivity to antibiotics.

Anaerobic bacteria

Bacteria that do not require oxgyen, found in low concentrations in the normal vagina

an·aer·ob·ic bac·te·ri·a

(anār-ōbik bak-tērē-ă)
Bacteria that can live and grow in the absence of oxygen. Some anaerobic bacteria are inhibited or killed by oxygen.
References in periodicals archive ?
The effect of anaerobic bacteria on bile pigment stone has been reported widely, according to which the anaerobes such as B.
Chloramphenicol, a bacteriostatic agent, known to be active against most of the anaerobic bacteria has also shown good activity against all the P.
INFECTED GUMS Rotting tissue can mimic the smell of faeces because of the production of chemicals by anaerobic bacteria.
"At least 90 percent of bad breath problems are associated with the sulfurous compounds generated by the putrefying, malodor-forming, anaerobic bacteria, which hide in oral crevices, and which degrade food particles and salivary cell fragments," Kross says.
(2.) Nagy E, Urban E, Nord CE, ESCMID Study Group on Antimicrobial Resistance in Anaerobic Bacteria. Antimicrobial susceptibility of Bacteroides fragilis group isolates in Europe: 20 years of experience.
Appelbaum and Chatterton (11) in 1978, in a study similar to that in South Africa on 265 anaerobic bacteria from clinical isolates, found low levels of resistance to penicillin, chloramphenicol, clindamycin and metronidazole.
(5) The isolation of anaerobic bacteria together with aerobic organism at that site is not surprising, since anaerobes are the predominant organisms in GIT where they outnumber aerobes in a ratio of 1,000:1.
Clostridium, the genus name of these gram-positive, spore-forming, anaerobic bacteria, comes from Greek kloster (spindle) because, under the microscope, the colonies resemble spindles used in cloth weaving and long sticks with a bulge at the end.
All cats had anaerobic bacteria isolated from the infection; these microbes are common in the gastrointestinal tract.
Both group A streptococci and a combination of aerobic and anaerobic bacteria have been implicated as causes.
They treat the bacteria one by one in sections on gram-positive cocci, gram-positive bacilli, gram-negative organisms, spiral bacteria, and obligate anaerobic bacteria.
"We use a patented oxygenating compound that attacks the anaerobic bacteria, which produces sulfur compounds," says Dr.