Aerobes


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Related to Aerobes: facultative aerobes, obligate aerobes, microaerophiles

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 ?
Bacteriology in the nine cases Aerobes Gram-positive Gram-negative Streptococci Alpha-hemolytic streptococci Enterobacter cloacae (pt.
Bacteria cultured (N = 113) Bacteria n (%) Gram-negative aerobes Proteus mirabilis 33 (29.
In addition, by cultivating all the samples in an aerobic environment, we selected for obligate or facultative aerobes and against obligate anaerobes.
5) In addition to food and drink, molecular oxygen is incorporated into the bodies of all aerobes when it is converted to water during oxidative phosphorylation.
As oxygen is depleted within the inner pores, facultative aerobes may begin to use anaerobic respiratory pathways, and the redox potential will decrease as the concentration of the most favourable electron acceptors is depleted.
Non-clostridial anaerobic cellulitis, caused by mixed aerobes and anaerobes (Bacteroides spp.
The microbial metabolism was especially influenced by NSAID use and/or ageing, although fewer changes were observed in the composition of the microbial community, whilst the level of aerobes was increased in the elderly and the level of Clostridium coccoides-Eubacterium rectale reduced in the elderly NSAID users as compared with young adults.
Anaerobes far outnumber aerobes and conventional culture techniques used to enumerate microbial flora have shown that Bacteroides, eubacteria, clostridia, ruminococci, peptococci, peptostreptococci, bifidobacteria and fusobacteria represent the predominant flora in adults (19,20) while facultative anaerobes such as Escherichia, Klebsiella, Proteus, Lactobacillus and enterococci are some members forming the subdominant genera (10).
These include unicellular green algae of the genus Dunaliella, which is the sole primary producers in the lake, and a variety of heterotrophic prokaryotes, aerobes, anaerobes as well as Archaea [4, 5].
Clindamycin is a broad-spectrum antibiotic highly active against anaerobic bacteria and gram-positive aerobes, which increases the opportunity for Candida species to invade tissues normally resistant to invasion," said Dr.