The influence of the organic matter of sewage sediments on biological activity of microorganisms which carry out the transformations of carbon and nitrogen compounds.

Izabella Pisarek, Katarzyna Grata
Pol J Microbiol
2013; 62 (4):
ICID: 1087849
Article type: Original article
IC™ Value: 10.00
Abstract provided by Publisher
 
Abstract Soil microorganisms play an important role in the organic matter transformation process. The soil microorganisms also are in symbiotic relationship with plants. At the same time, soil microorganisms are sensitive to both anthropogenic and natural habitat changes. Particular characteristics of organic matter (the C:N relation, pH, the content the content of assimilated nutrients, the xenobiotics etc.) modify the biotic conditions of the soils. This particularly concerns the microorganisms which carry out the changes in the mineral and organic nitrogen compounds and the transformation of the external organic matter. The first aim of this work was to assess the influence of the sewage sediments and the manure on the phytosanitary potential of the soil environment. The second aim of this article was to estimate the number and activity of microorganisms which carry out the transformation of carbon and nitrogen compounds. This work showed the stimulating effect of the external organic matter both on the number and on the activity of most of the physiological groups. The manure mainly stimulated ammonificators, nitrifiers and Azotobacter sp. microbes. The sewage sediments mainly stimulated ammonificators of I faze, nitrifiers and cellulolytic microbes. The statistically significant impact of the physio-chemical soil habitat on the biological activity of the analyzed groups of microbes was also noted.
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