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Article

Variation in Sodic Soil Bacterial Communities Associated with Different Alkali Vegetation Types

1
Department of Microbiology, ELTE Eötvös Loránd University, Pázmány P. Sétány 1/C, H-1117 Budapest, Hungary
2
Institute of Aquatic Ecology, Centre for Ecological Research, Karolina út 29, H-1113 Budapest, Hungary
3
Institute for Soil Sciences, Centre for Agricultural Research, Herman Ottó út 15, H-1022 Budapest, Hungary
*
Authors to whom correspondence should be addressed.
Academic Editor: Dilfuza Egamberdieva
Microorganisms 2021, 9(8), 1673; https://doi.org/10.3390/microorganisms9081673
Received: 18 June 2021 / Revised: 15 July 2021 / Accepted: 4 August 2021 / Published: 6 August 2021
(This article belongs to the Special Issue Microbial Community Response to Climate and Environmental Changes)
In this study, we examined the effect of salinity and alkalinity on the metabolic potential and taxonomic composition of microbiota inhabiting the sodic soils in different plant communities. The soil samples were collected in the Pannonian steppe (Hungary, Central Europe) under extreme dry and wet weather conditions. The metabolic profiles of microorganisms were analyzed using the MicroResp method, the bacterial diversity was assessed by cultivation and next-generation amplicon sequencing based on the 16S rRNA gene. Catabolic profiles of microbial communities varied primarily according to the alkali vegetation types. Most members of the strain collection were identified as plant associated and halophilic/alkaliphilic species of Micrococcus, Nesterenkonia, Nocardiopsis, Streptomyces (Actinobacteria) and Bacillus, Paenibacillus (Firmicutes) genera. Based on the pyrosequencing data, the relative abundance of the phyla Proteobacteria, Actinobacteria, Acidobacteria, Gemmatimonadetes and Bacteroidetes also changed mainly with the sample types, indicating distinctions within the compositions of bacterial communities according to the sodic soil alkalinity-salinity gradient. The effect of weather extremes was the most pronounced in the relative abundance of the phyla Actinobacteria and Acidobacteria. The type of alkali vegetation caused greater shifts in both the diversity and activity of sodic soil microbial communities than the extreme aridity and moisture. View Full-Text
Keywords: 16S rRNA gene; bacterial diversity; catabolic activity; cultivation; Pannonian steppe; pyrosequencing 16S rRNA gene; bacterial diversity; catabolic activity; cultivation; Pannonian steppe; pyrosequencing
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MDPI and ACS Style

Borsodi, A.K.; Mucsi, M.; Krett, G.; Szabó, A.; Felföldi, T.; Szili-Kovács, T. Variation in Sodic Soil Bacterial Communities Associated with Different Alkali Vegetation Types. Microorganisms 2021, 9, 1673. https://doi.org/10.3390/microorganisms9081673

AMA Style

Borsodi AK, Mucsi M, Krett G, Szabó A, Felföldi T, Szili-Kovács T. Variation in Sodic Soil Bacterial Communities Associated with Different Alkali Vegetation Types. Microorganisms. 2021; 9(8):1673. https://doi.org/10.3390/microorganisms9081673

Chicago/Turabian Style

Borsodi, Andrea K., Márton Mucsi, Gergely Krett, Attila Szabó, Tamás Felföldi, and Tibor Szili-Kovács. 2021. "Variation in Sodic Soil Bacterial Communities Associated with Different Alkali Vegetation Types" Microorganisms 9, no. 8: 1673. https://doi.org/10.3390/microorganisms9081673

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