Soil Bacterial Communities in the Affected Zone of Salt Dump (Solikamsk, Perm Krai)

IF 1.4 4区农林科学 Q4 SOIL SCIENCE Eurasian Soil Science Pub Date : 2024-07-22 DOI:10.1134/s1064229324600805

A. V. Nazarov, Yu. I. Nechaeva, E. S. Korsakova, A. A. Pyankova, E. G. Plotnikova

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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%).

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盐场影响区（彼尔姆边疆区索里卡姆斯克）的土壤细菌群落

摘要通过对 16S rRNA 基因进行高通量测序，分析了钾企业盐场（彼尔姆边疆区索里卡姆斯克市）附近土壤（技术溶胶和 Retisol）细菌群落的分类组成。研究对象是距离盐场 1-1.5、8、780 米和 11 公里的地块中没有植物的土壤样本和 Calamagrostis epigeios (L.) Roth 植物根圈样本。研究发现，在所有土壤样本中，假单胞菌门、类杆菌门、放线菌门、酸性杆菌门、疣菌门和宝石菌门的细菌占多数。在紧邻盐场（1-1.5 米）的盐渍化区域的地块上，海泡石废料对土壤中细菌群落分类组成的影响最大。与非盐碱地土壤（距离盐场 8 米、780 米和 11 公里处）相比，在这些地区采集的无植物土壤样本中，"放线菌纲 "细菌占主导地位，酸细菌门和蛭弧菌门、放线菌类和壳斗科细菌的比例下降，黄单胞菌科细菌在细菌群落中的比例上升。在盐碱化区域生长的植物根圈细菌群落中，酸细菌门、壳寡糖科和肠杆菌科细菌的比例下降，而黄单胞菌科和黄杆菌科细菌的比例上升。盐场对距离盐场 8 米和 730 米的地块土壤细菌群落的影响显而易见：表现在 "放线菌纲"（1.4-1.6%）、亚硝基单胞菌科（3.0-6.1%）和无患子科（1.0-1.9%）、Ilumatobacter 属（1.6-2.8%）以及罗丹菌科（1.3-1.5%）的不可培养细菌。

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来源期刊

Eurasian Soil Science 农林科学-土壤科学

CiteScore

2.70

自引率

35.70%

发文量

137

审稿时长

12-24 weeks

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.