Aerobes


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Aerobes

 

aerobic organisms, organisms having the aerobic type of respiration—that is, those capable of living and developing only in the presence of free oxygen. Almost all animals and plants—and many microorganisms—that for their life activities use energy liberated in oxidation reactions that occur with the absorption of free oxygen (that is, those having an oxidative type of metabolism) belong to the group of aerobes. Obligate aerobes and aerophiles obtain energy only from the oxidative reaction (for example, acetic-acid and nitrifying bacteria). Facultative aerobes (which are also conditional anaerobes) use the energy of fermentation, and therefore they can live with either large or negligible amounts of oxygen (for example, yeasts and denitrifying bacteria). Each species of aerobic bacteria has its own definite and characteristic maximal, minimal, and optimal oxygen concentrations.

REFERENCES

Rabotnova, I. L. Obshchaia mikrobiologiia. Moscow, 1966.
Frobisher, M. Osnovy mikrobiologii. Moscow, 1965. (Translated from English.)
Stanier, R., M. Doudoroff, and E. Adelberg. General Microbiology, 2nd ed. Leningrad, 1963.
References in periodicals archive ?
The counts of total aerobes or enterobacteria did not differ due to treatment during either the starter or finisher phase.
Amoxycillin has remarkable activity against wide range of gram positive and gram negative aerobes and anaerobes.
Aerobes and facultative anaerobes accounted for 85.5% of the isolates, anaerobes for 13.3% and fungi for 1.2%.
The specimen was cultured on plates to grow out aerobes and anaerobes.
Anaerobic culture plates were incubated for seven days to allow growth of anaerobes, which grow slowly compared to aerobes. The isolates from the culture plates were identified using Gram staining, colony morphology, catalase, coagulase, oxidase, and biochemical strips.
Intacef (c) belongs to 3rd generation Cephalosporin group having remarkable efficacy against wide range of Gram +ve and Gram -ve aerobes and anaerobes and being newer antibiotic with least chance of resistance was used and found most effective in treating the said grave pathologic condition.
The operational characteristics of facility B prevented the dominance of thermophilic aerobes such as Bacillus spp.
(15) The synergy between the two pathogens accounts for the aggressive nature of this disease; the removal of oxygen by the facultative aerobes allows the obligate anaerobes to flourish.
(1971); and plated on Brain-Heart Infusion agar (DIFCO Laboratories, Detroit, MI) following anaerobic or aerobic incubation at 37[degrees]C for 24 h to count anaerobes or aerobes. All bacteria were counted and expressed as total cfu/ml digesta, and the numbers of colony forming units were expressed as [log.sub.10]-transformed data for statistical analysis.
Emerging carbapenemases in Gram-negative aerobes. Clin Microbiol Infect 2002;8:321-31.
We recovered 659 strains from 510 aspirates; of these, 572 (86.8%) were aerobes and 87 (13.2%) were anaerobes.