Profile analysis of microbiomes in soils of solonetz complex in the Caspian Lowland
- Authors: Chernov T.I.1, Lebedeva M.P.1, Tkhakakhova A.K.1, Kutovaya O.V.1
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Affiliations:
- Dokuchaev Soil Science Institute
- Issue: Vol 50, No 1 (2017)
- Pages: 64-69
- Section: Soil Biology
- URL: https://journals.rcsi.science/1064-2293/article/view/223847
- DOI: https://doi.org/10.1134/S1064229317010045
- ID: 223847
Cite item
Abstract
The taxonomic structure of the microbiota in two associated soils—solonetz on a microhigh and meadow-chestnut soil in a microlow—was studied in the semidesert of the Caspian Lowland. A highthroughput sequencing of the 16S rRNA gene was used for the soil samples from genetic horizons. A considerable reduction in the bacterial diversity was found in the lower horizons of the solonetz and compact solonetzic horizon with a high content of exchangeable sodium. In the meadow-chestnut soil, the microbial diversity little decreased with the depth. In both soils, a portion of archaea from the Thaumarchaeota group also decreased in the deeper horizons. In the soil horizons with the lower total bacterial diversity, a share of proteobacteria of the Enterobacteriaceae, Pseudomonadaceae, and Sphingomonadaceae families became higher. The difference between the structure of the microbial population in the solonetz and meadow- chestnut soil can be first explained by the different water regimes and soil consistence.
About the authors
T. I. Chernov
Dokuchaev Soil Science Institute
Author for correspondence.
Email: chern-off@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
M. P. Lebedeva
Dokuchaev Soil Science Institute
Email: chern-off@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
A. K. Tkhakakhova
Dokuchaev Soil Science Institute
Email: chern-off@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
O. V. Kutovaya
Dokuchaev Soil Science Institute
Email: chern-off@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
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