Aerobes

Aerobes : microbes, growing only with the free access of oxygen and growing, as a rule, on the surface nutrient media (Sartina, Vibrio cholerae, Bacillus pynocyaneus, hay, anthrax Bacillus, Mycobacterium tuberculosis and other). Among aerobes there are also microaerophilic that need only a small amount of oxygen, and facultative aerobes, that can grow and without access of air. Cm. also Bacteria.

Aerobes [from Greek. aer - air and b(ios) - life] - organisms aerobic type of breathing, you have the ability to live and develop only in the presence in the air of free oxygen. Aerobes used as a source for vital activity of cells of the energy released in the oxidation of organic compounds to CO2 and H2O in the presence of molecular oxygen. To aerobes are all higher organisms (plants and animals), as well as a large group of microorganisms.
In relation aerobes to oxygen they are divided into obligatory (unconditional), or aerofly, which can not develop in the absence of free oxygen, and optional (conditional)that can grow with reduced content of oxygen in the environment. The group obligate A. includes a number of microorganisms-saprophytes living in soil, water and air and are actively involved in the circulation of substances in nature. These include bacteria, breathing through the direct oxidation of methane (You. methanicus and others), hydrogen sulphide (Sulfomonas denitrificans and others), hydrogen (You. hydrogenes), nitrogen (Nitrosomonas, Nitrobacter), iron (Ferri bacterium). Of pathogenic microorganisms to obligate the aerobes include representatives of the genera Bacillus, Bacterium, Bordetella, Brucella, Corynebacterium, Diplococcus, Pasteurella and other Mycobacterium tuberculosis, tularemia and cholera demand for its existence increased content of oxygen. To the optional A. belong mould, fungi, actinomyces, and pathogenic bacteria of genera Salmonella, Shigella, Escherichia etc. the Range of fluctuations of the concentration of oxygen, which can exist A., is very wide: the maximum partial pressure of oxygen for some A. is 15-20 ATM, and the minimum minus 0.1-0.5 ATM. A. can settle for a relatively small reserve of oxygen and can grow in pretty deep soil layers. Cm. also Bacteria.