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 platelet aggregation and complement fixation induced by the aerobes and the heparinase and collagenase produced by the anaerobes lead to microvascular thrombosis of the small subcutaneous vessels and gangrene of the overlying skin.
In our study, 126 aerobes were isolated constituting 84% of the total organisms.
The agar plates were incubated at 37[degrees] C for 24-48 hours to enumerate the aerobe and facultative bacteria and the fungi culture plates were incubated and inverted at 37[degrees]C for 3-7 days.
Many organisms present on the surface of grapes, particularly the bacteria and molds, are obligate aerobes.
Bacteria cultured (N = 113) Bacteria n (%) Gram-negative aerobes Proteus mirabilis 33 (29.
Microbiological methods included determination of species composition of aerobes and anaerobic flora, cultivation and study of population levels of different taxonomic groups of microorganisms in wound's biofilms.
These bacteria are strict aerobes, so their use may be limited in anaerobic environments like deep periodontal pockets.
These patients harbored various types of bacterial growth; the primary pathogens were gram-positive and gram-negative aerobes and anaerobes.
Harlan surface (1), (2), Harlan whole body homogenate, and Colorado surface isolates were determined to be facultative anaerobes, and the isolates from the whole body homogenate and surface swab from the Colorado strain were obligate aerobes.
Samples were removed at intervals and a viable count on agar plates was carried out to quantify the levels of total aerobes, anaerobes as well as specific groups of bacteria including those of sulphate reducing bacteria (SRBs).
All normal body cells are thus obligate aerobes, whereas all cancer cells are partial anaerobes and meet their energy needs by fermentation.
Other aerobes, most commonly different strains of Thiobacillus, will oxidize the sulphur to sulphuric acid--producing pH values as low as 1.