A. V. Nazarov, Yu. I. Nechaeva, E. S. Korsakova, A. A. Pyankova, E. G. Plotnikova
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引用次数: 0
Abstract
The taxonomic composition of soil (Technosol and Retisol) bacterial communities near the salt dump of a potassium enterprise (Solikamsk, Perm krai) was analyzed by the method of high-throughput sequencing of the 16S rRNA gene. Soil samples without plants and of the rhizosphere of plants of the species Calamagrostis epigeios (L.) Roth from plots located 1–1.5, 8, and 780 m and 11 km from the salt dump were studied. It was found that bacteria of the phyla Pseudomonadota, Bacteroidota, Actinomycetota, Acidobacteriota, Verrucomicrobiota, and Gemmatimonadota predominated in all soil samples. The impact of halite waste on the taxonomic composition of bacterial communities in soils was the greatest on plots in the salinization zone in the immediate vicinity of the salt dump (1–1.5 m). In soil samples without plants taken in these areas, bacteria of the order “Candidatus Actinomarinales“ predominated, the proportion of representatives of the phyla Acidobacteriota and Verrucomicrobiota, the class Actinobacteria, and the family Chitinophagaceae decreased, and the proportion of bacteria of the family Xanthomonadaceae in bacterial communities increased in comparison with nonsaline soils (at a distance of 8 and 780 m and 11 km from the salt dump). In the rhizosphere bacterial communities of plants, growing in the salinization zone, the proportion of representatives of the phylum Acidobacteriota and of the families Chitinophagaceae and Enterobacteriaceae decreased, while the proportion of the families Xanthomonadaceae and Flavobacteriaceae became greater. The influence of the salt dump on soil bacterial communities from plots located 8 m and 730 m from the salt dump was revealed: it was manifested in the presence of representatives of the order “Candidatus Actinomarinales“ (1.4–1.6%), of the families Nitrosomonadaceae (3.0–6.1%) and Saprospiraceae (1.0–1.9%), of the genus Ilumatobacter (1.6–2.8%), and of nonculturable bacteria of the family Rhodanobacteraceae (1.3–1.5%).
期刊介绍:
Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences.
Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.