贝加尔湖不同生态位分离细菌的耐药性分析

E. Verkhozina, V. Verkhozina, O. Belykh
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引用次数: 0

摘要

本文介绍了1995年至2015年进行的细菌耐药监测研究结果。样本取自贝加尔湖生态系统的不同生态位。分析了该细菌对14种抗生素的敏感性和耐药性。结果显示,从湖中分离出了对多种抗生素具有耐药性的细菌。首次确立了在对大量接收数据进行分析时,采用方差和相关分析方法是可取的。对细菌耐药性的分散分析发现,在一年中的不同月份,细菌对抗生素的平均耐药性是可靠的不同(P_value = 0.003 < α),即观察到季节动态。分离的菌株对一系列广谱抗生素具有耐药性,特别是四环素和氨苄西林。最有效的抗菌作用是培氟沙星、头孢西马、庆大霉素、头孢唑啉。聚类分析表明,耐药菌株对多种抗生素具有交叉耐药。从贝加尔湖的上层生态系统和深海底部沉积物中分离出的细菌对几乎所有抗生素都高度敏感。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of the Antibiotic Resistance of Bacteria Isolated from Various Ecological Niches of Lake Baikal Ecosystem
The article presents the results of monitoring studies of bacterial strains on antibiotic resistance held from 1995 to 2015. Samples were selected from various ecological niches of the Lake Baikal ecosystem. The bacteria was analyzed for sensitivity and resistance to 14 antibiotics. It was revealed that bacteria resistant to many antibiotics were isolated from the lake's lithoral. For the first time it has been established that when ana­lyzing a large amount of received data, it is advisable to use variance and correlation methods of analysis. A dispersion analysis of bacterial resistance to antibiotics grouped by the factor of belonging to a certain month of sampling has found that in different months of the year, average resistance is reliably different (P_value = 0,003 < α), i.e. seasonal dynamics are observed. Isolated strains are resistant to a range of broad-spectrum antibiotics, especially tetracycline and ampicillin. The most effective antimicrobial action is noted for pefloxacin, cephaloxima, gentamicin, cephalozolin. According to the cluster analysis, antibio­tic-resistant strains are cross-resistant to many antibiotics. Bacteria isolated from the pelagilyan ecosystems of Lake Baikal and deep-sea bottom sediments are highly sensitive to almost all antibiotics.
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