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Microbiological composition of the saturated soils of arid territories

Grigoryan Lilit Norayrovna  (postgraduate student, Astrakhan state University)

Bataeva Yulia Viktorovna  (associate Professor, Astrakhan state University)

Yakovleva Lyudmila Vyacheslavovna  (Professor, Astrakhan state University)

Shlyakhov Victor Aleksandrovich  (candidate of agricultural Sciences, head of the branch of "Rosselkhoznadzor" in the Astrakhan region)

The paper compares quantitative and qualitative compositions of microorganism complexes in different soil biotopes of the Astrakhan region. To identify and quantify ecological-trophic groups of microorganisms by the method of limiting dilutions, the fourth dilution was sown on solid nutrient media. The data obtained, as well as the fairly extensive experimental material accumulated to date, allow us to conclude that the number of microorganisms in soils of various types is not the same. The proportions of individual groups of microorganisms are significantly different in them. Quantitative accounting showed an insufficiently high number of microorganisms of orders 106 - 107, and the results of determining the qualitative composition of microorganisms obtained during the microbiological analysis indicate a large variety of physiological groups in the studied soils.

Keywords:saline soil, microbiological analysis of soil, soil microorganisms, Streptomyces, Astrakhan region
 

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Citation link:
Grigoryan L. N., Bataeva Y. V., Yakovleva L. V., Shlyakhov V. A. Microbiological composition of the saturated soils of arid territories // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2018. -№12. -С. 6-13
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