Heterotrophic Bacteria


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Heterotrophic Bacteria

 

bacteria that use organic (carbon-containing) compounds as a source of energy and carbon. This characteristic distinguishes heterotrophic bacteria from chemoautotrophic (chemosynthesizing) and photoautotrophic (photosynthesizing) bacteria, which assimilate CO2 as a source of carbon. The overwhelming number of known species of bacteria, both aerobic and anaerobic, are heterotrophic. Many heterotrophic bacteria utilize sugar, alcohol, and organic acids. However, there are specialized heterotrophic bacteria capable also of decomposing cellulose, lignin, chitin, keratin, hydrocarbons, phenol, and other substances. Heterotrophic bacteria are found widely in soil, water, foods, and the bed soil of bodies of water. Heterotrophic bacteria take an active part in the natural recycling of substances.

A. A. IMSHENETSKII

References in periodicals archive ?
Twelve snails were collected in August for standardized comparison of the predominant culturable heterotrophic bacteria from different tissues; three male and three female D.
Antibiotic resistance among the heterotrophic bacteria from the harvested and stored rainwater is presented in Figure 1.
The dominating heterotrophic bacteria were observed among bacterial communities of the digestive tract of control fish (Figs 1-4) in the experiment of 96-hour exposure of rainbow trout to different parts of LC50 of Cu + Zn ions mixture.
Identification of selected bacteria was carried out in the non-rhizosphere root associated soil sample and the maximum heterotrophic bacteria was 247X[10.
I've found, for example, that several subgroups of the highly abundant heterotrophic bacteria known as SAR11 seem to enjoy snacking on organic carbon produced by the autotroph Prochlorococcus, but they appear to be unaffected by organic carbon from any other source we've tested.
5 ppm as free residual oxidant) reduced planktonic heterotrophic bacteria by at least two orders of magnitude (99.
Researchers from the University of Arizona swabbed classrooms and common area surfaces at six schools in a K-12 school system to determine the relative numbers of total heterotrophic bacteria and coliform bacteria on frequently touched hard, non-porous surfaces.
Taxon-specific and seasonal variations in flagellates grazing on heterotrophic bacteria in the oligotrophic Lake Annecy--importance of mixotrophy.
Further, in order to determine the presence of contaminating heterotrophic bacteria, growth was monitored by determining viable cell counts on both solid medium-A and medium-H.
Analysis of variance (ANOVA) was used to compare the changes in the different panels by means of cultivatable heterotrophic bacteria, and then the Tukey Honesty nonparametric test was chosen for further analysis.
Fourteen of 24 open containers (58%) and 7 of 19 bottles (37%) grew heterotrophic bacteria that exceeded 500 colonies/ml.