[Dynamics of successive changes in sulphidogenic microbial association under the conditions of formation of the biofilm on steel surface].
Dynamics of successive changes in the artificial associative culture of sulphate-reducing bacteria was investigated under biofilm formation on steel 3 specimens. It was shown that the ammonificating, denitrificating and iron-reducing bacteria were associative satellites of sulphate-reducing bacteria in the biofilm. Heterotrophic satellites ofsulphate-reductors with domination ofammonificating bacteria developed in the first hours of exposition in the microbial association. The appearance of sulphate-reducing bacteria in the biofilm was fixed on the 24th hour of exposition, their domination was noticed after 72 and 240 hours. It was shown that the successive changes with a consequent change of domination of different bacterial physiologic groups took place in the microbial association under the biofilm formation on the steel surface, that favoured mutually beneficial functioning of corrosion-dangerous bacteria.
Purish
L M
LM
Asaulenko
L H
LH
D018441:Biofilms / Q000254:growth & development*; D015169:Colony Count, Microbial; D003343:Corrosion; D006090:Gram-Negative Bacteria / Q000254:growth & development / Q000378:metabolism; D013232:Steel / Q000737:chemistry; D016999:Sulfur-Reducing Bacteria / Q000254:growth & development* / Q000378:metabolism*; D013499:Surface Properties; D013997:Time Factors
D013232:Steel