Abstract

Urban soils, differing in the intensity of anthropogenic impacts, were studied in several largest (Krasnodar), large (Sochi and Simferopol), and moderately large (Maikop) cities of southern Russia. The obtained data on the diversity of bacterial complexes revealed that urban soils with high anthropogenic load (Sochi, Simferopol, and Krasnodar) undergo considerable transformation of natural bacterial complexes with a sharp increase in representatives of Enterobacteriaceae family. Along with microorganisms indicative of the sanitary status of urban soils (E. coli and En. faecalis) the soils also contain bacteria of Klebsiella, Enterobacter, Citrobacter, and Serratia genera; some of their species may cause intestinal and allergic diseases. In the urban soil of Sochi, spores of sulfite-reducing Clostridia, including Clostridium perfringens, have been found. In the urban soil of Maikop with the lowest population density among the studied cities, changes in the structure of natural bacterial complexes are virtually absent. The abundances of sanitary-indicative microorganisms (Escherichia coli and Enterococcus faecalis) in urban soils of all the studied cities, except for Maikop, exceeded the normative parameter for sanitary-safe clean soils (<10 CFU/g soil).

中文翻译：

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俄罗斯南部城市的城市菌群

摘要

在俄罗斯南部的几个最大的城市（克拉斯诺达尔），较大的城市（索契和辛菲罗波尔）和中等规模的城市（马科普），研究了人为影响强度不同的城市土壤。获得的有关细菌复合物多样性的数据表明，人为负荷较高的城市土壤（索契，辛菲罗波尔和克拉斯诺达尔）经历了天然细菌复合物的大量转化，肠杆菌科的代表数量急剧增加。除指示城市土壤卫生状况的微生物（大肠杆菌和粪便肠杆菌）外，土壤中还包含克雷伯菌，肠杆菌，柠檬酸杆菌和沙雷氏菌的细菌。属 它们的某些物种可能会引起肠道和过敏性疾病。在索契的城市土壤中，发现了还原亚硫酸盐梭状芽胞杆菌（包括产气荚膜梭状芽胞杆菌）的孢子。在被研究城市中人口密度最低的麦科普（Maikop）城市土壤中，天然细菌复合物的结构几乎没有变化。除马科普（Maikop）外，所有研究城市的城市土壤中的指示性微生物（大肠埃希菌和粪肠球菌）的含量均超过了对卫生安全的清洁土壤（<10 CFU / g土壤）的标准参数。