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Morphophysiological Features of Some Cultivable Bacteria from Saline Soils of the Aral Sea Region
— The study of the microbiome of saline soils is of significant scientific and practical interest in relation to the capacity of these microorganisms for adaptation to extreme conditions of the environment. The isolation, identification, and study of the cultural-morphological and biochemical proper...
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Published in: | Eurasian soil science 2020, Vol.53 (1), p.90-96 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | —
The study of the microbiome of saline soils is of significant scientific and practical interest in relation to the capacity of these microorganisms for adaptation to extreme conditions of the environment. The isolation, identification, and study of the cultural-morphological and biochemical properties of the associative bacteria from the rhizosphere of
Salicornia
L., a common plant in the Aral region of Uzbekistan, have been performed. The dominant cultivable bacteria of the saline soil in the studied area are halophilic bacteria of the genera
Halomonas
and
Planococcus
belonging to different phylogenetic groups: the Gamma-proteobacteria and Firmicutes, respectively. The morphophysiological features of isolated strains have been studied; in particular, their salt tolerance and the possibility of utilizing various carbon sources. The strains grow well at NaCl concentrations of 8.0, 10.0, and 15.0%, though the growth and accumulation of biomass in cultures are not observed at NaCl concentrations of 20.0, 25.0, and 30.0%. The obtained data on the biodiversity of halophilic microorganisms in saline soils can be used in the diagnostics of the state of saline soils and for their bioremediation and rehabilitation. |
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ISSN: | 1064-2293 1556-195X |
DOI: | 10.1134/S1064229320010044 |