Mikrobiol. Z. 2017; 79(6):28-40. Ukrainian.
doi: https://doi.org/10.15407/microbiolj79.06.028
The Features of Functional-Enzymatic Directivity of Microbial Biome
In Agrocenoses of Sugar Beet
Patyka M.V.1, Borko Yu.P.2, Ibatullin І.І.1, Kolodiazhnyi O.Yu.1, Tanchyk S.P.1,
1National University of Life and Environmental Sciences of Ukraine
13 Heroyiv Oborony Str., Kyiv, 03041, Ukraine
2Institute of Agriculture, NAAS of Ukraine
2-B Mashynobudivnikyv Str., Chabany, Kyiv region, 08162, Ukraine
The aim was to defne the enzymatic activity of chernozem typical, humus content in it and to evaluate the directivity of microbial processes in the sugar beet rhizosphere at the diferent agromeasures. Methods. The humus content has been defned by the Turin method in Simakov modifcation, the taxonomic structure of prokaryotes of soil microbiome – by the pyrosequencing method. Polyphenol oxidase and peroxidase activity have been estimated by Galstyan in Chunderova modifcation, invertase – by Kuprevych and Shcherbakova, directivity of microbial processes in the soil – by the using of appropriate coefcients. Results. The enzymatic activity of typical chernozem and directivity of microbial processes in the sugar beet rhizosphere are depend on the phase of culture ontogenesis and agromeasures. Have been established, that the biological system of agriculture on the background of surface soil tillage, in comparison with other agromeasures, contributes to the increase of humus content and enzymatic activity of soil. The application of biological agrarian system causes to increase in the microbial diversity in the rhizosphere of sugar beet, compared with the intensive system, in which is observed the impoverishment of prokaryotes of typical chernozem. It has established that the synthesis processes of organic matter are dominated above destruction at the biological and ecological agrarian systems, whereas the increasing of microbial assimilation of nutrients from the soil are at the intensive system. The intensity of the microbial transformation of organic matter was increased in the direction from intensive to biological agrarian systems. Conclusions. The application of ecological and biological agrarian systems, unlike intensive promotes the increase of enzymatic activity of soil, species diversity of microbiota, to optimize the humus accumulation and progress of organic compounds transformation processes.
Key words: microbial processes, peroxidase, polyphenol oxidase, invertase, humus, metagenome, typical chernozem, rhizosphere, sugar beet, agromeasures.
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