| Title | Response of the metabolic activity and taxonomic composition of bacterial communities to mosaically varying soil salinity and alkalinity |
| Publication Type | Journal Article |
| Year of Publication | 2024 |
| Authors | Mucsi M., Borsodi A.K, Megyes M., Szili-Kovacs T. |
| Journal | Scientific Reports |
| Volume | 14 |
| Pagination | 15 |
| Date Published | Mar |
| Type of Article | Article |
| ISBN Number | 2045-2322 |
| Accession Number | WOS:001195862400066 |
| Keywords | biogeography, carbon dynamics, diversity, halophytes, land-use, microbial communities, respiration, Science & Technology - Other Topics, sodicity, tolerance, vegetation |
| Abstract | Soil salinity and sodicity is a worldwide problem that affects the composition and activity of bacterial communities and results from elevated salt and sodium contents. Depending on the degree of environmental pressure and the combined effect of other factors, haloalkalitolerant and haloalkaliphilic bacterial communities will be selected. These bacteria play a potential role in the maintenance and restoration of salt-affected soils; however, until recently, only a limited number of studies have simultaneously studied the bacterial diversity and activity of saline-sodic soils. Soil samples were collected to analyse and compare the taxonomic composition and metabolic activity of bacteria from four distinct natural plant communities at three soil depths corresponding to a salinity-sodicity gradient. Bacterial diversity was detected using 16S rRNA gene Illumina MiSeq amplicon sequencing. Community-level physiological profiles (CLPPs) were analysed using the MicroResp (TM) method. The genus-level bacterial composition and CLPPs differed significantly in soils with different alkaline vegetation. The surface soil samples also significantly differed from the intermediate and deep soil samples. The results showed that the pH, salt content, and Na+ content of the soils were the main edaphic factors influencing both bacterial diversity and activity. With salinity and pH, the proportion of the phylum Gemmatimonadota increased, while the proportions of Actinobacteriota and Acidobacteriota decreased.
|
| Short Title | Sci RepSci Rep |
| Alternate Journal | Sci Rep |
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Mucsi, Marton Borsodi, Andrea K. Megyes, Melinda Szili-Kovacs, Tibor
European Regional Development Fund; Hungarian Government [GINOP-2.3.2-15-2016-00056]; Sustainable Development and Technologies National Programme of the Hungarian Academy of Sciences [FFT NP FTA]
The authors thank I. Villanyi for the technical support and Peter Csontos for vegetation identification. This research was supported by the European Regional Development Fund and the Hungarian Government [GINOP-2.3.2-15-2016-00056] and the Sustainable Development and Technologies National Programme of the Hungarian Academy of Sciences [FFT NP FTA].
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Szili-Kovács, T (corresponding author), HUN REN Ctr Agr Res, Inst Soil Sci, Herman Otto Ut 15, H-1022 Budapest, Hungary.; Borsodi, AK (corresponding author), Eotvos Lorand Univ, Dept Microbiol, Pazmany P Setany 1-C, H-1117 Budapest, Hungary.; Borsodi, AK (corresponding author), HUN REN Ctr Ecol Res, Inst Aquat Ecol, Karolina Ut 29, H-1113 Budapest, Hungary.
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