microaerophilic


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microaerophilic

 [mi″kro-ar″o-fil´ik]
requiring oxygen for growth but at lower concentration than is present in the atmosphere; said of bacteria.

mi·cro·aer·o·phil

, microaerophile (mī'krō-ār'ō-fil, -fīl),
1. An aerobic bacterium that requires oxygen, but less than is present in the air, and grows best under modified atmospheric conditions.
2. Relating to such an organism. Synonym(s): microaerophilic, microaerophilous
[micro- + G. aēr, air, + philos, fond]

mi·cro·aer·o·phil

, microaerophile (mī-krō-ār'ō-fil, -fīl)
1. An aerobic bacterium that requires oxygen, but less than is present in the air, and grows best under modified atmospheric conditions.
2. Relating to such an organism.
Synonym(s): microaerophilic.
[micro- + G. aēr, air, + philos, fond]
References in periodicals archive ?
Hexavalent chromium reduction was examined under microaerophilic (static) condition in 100 mL LB broth amended with suitable concentration of Cr(VI) (3mM- inoculum size) and inoculated with appropriate cells of bacterial suspension (10% inoculum-chromate concentration experiment), incubated at 35[degrees]C.
With the aid of sterile forceps, cephalothin and nalidixic acid discs were placed on the surface of inoculated plate and incubated at 37[degrees]C for 3-6 days under microaerophilic conditions.
Fastidious, microaerophilic, helical shaped Gramnegative bacteria.
128 experimental systems were incubated in a moist chamber at 37 [degrees]C under two different atmospheres: 64 in aerophilic atmosphere and 64 in microaerophilic (10 % C[O.sub.2]).
They were incubated at 32[degrees]C for 8 weeks under microaerophilic conditions [23].
mutans ATCC 25175 was routinely grown under microaerophilic conditions for 48 h at 37[degrees]C in agar plates with 32 g/L of Brain Heart Infusion (BHI) (Bacto, Difco[R], USA) and supplemented with 3 g/L of yeast extract and 200 g/L of sucrose (Bacto, Difco, USA).
The incubation time was 48 h under microaerophilic conditions (85% N2,10% C[O.sub.2], and 5% O2) at 37[degrees]C.
Prior to testing, one vial of each strain was removed from the freezer and subcultured twice on Brain Heart Infusion (BHI) blood agar plates (Oxoid) and incubated for 24 h at 37[degrees]C in a microaerophilic atmosphere, in order to ensure its purity and vitality.
The strain was grown for 48 h at 37[degrees]C incubated under microaerophilic conditions which correspond to the logarithmic growth phase.
Although identification of this Gram-negative, microaerophilic bacterium from gastric biopsy specimens and 13C-urea breath test has higher sensitivities and specificities, these test require direct observation, trained staff and expensive instruments.
Helicobacter pylori (H pylori is a microaerophilic, spiral-shaped bacteria that primarily colonizes the antral gastric mucosa where it causes an acute and chronic inflammation.