(of a microorganism) requiring little free oxygen, or oxygen at a lower partial pressure than that of atmospheric oxygen.
Example sentencesExamples
When O2 is supplied to the cells under the microaerophilic conditions, the aerobic respiration will be stimulated.
Most organisms are of bowel origin, with Escherichia coli, Klebsiella pneumoniae, bacteroides, enterococci, anaerobic streptococci, and microaerophilic streptococci being most common.
The cultures were incubated at 37 deg C in the controlled microaerophilic atmosphere described earlier or three days.
It can be seen from Fig.4, lower panel, that the yellow emission was relatively enhanced by the addition of cyanide under the microaerophilic conditions.
After overnight incubation in selective media, recombinants were plated onto MM agar containing 20 g/ml kanamycin and maintained at 25°C in a sealed gas jar under microaerophilic conditions.
Derivatives
microaerophile
noun
Biology
Detecting anaerobes and microaerophiles is difficult because these microorganisms must be incubated in a controlled gaseous environment that is either oxygen free or extremely oxygen deficient.
Example sentencesExamples
Hence, they were likely to be strict anaerobes, or possibly microaerophiles, with a capacity to degrade sugars and/or amino acids, forming acetate as one of the end products.
Early models assumed that all magnetotactic bacteria are microaerophiles and indigenous in sediments.
In addition to being able to respire with oxygen, some microaerophiles may be capable of respiring anaerobically with electron acceptors other than oxygen.
H. pylori is a microaerophile and thus requires oxygen concentrations that are below 21% partial pressure (normal atmospheric concentration).