Скрининг и оценка устойчивости микроорганизмов к различным концентрациям ионов свинца (Pb2+)

Screening and assessment of the resistance of microorganisms to different concentrations of lead ions (Pb2+)

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Published: 2026-10-30
DOI: https://doi.org/10.66073/ReFocus-Conf/3010091
Keywords:
heavy metals, lead, Pb²⁺, microbial resistance, Bacillus, Rhodococcus, bioremediation

Main Article Content

Shonakhunov Tulkin Erkinovich
Institute of Microbiology of the Academy of Sciences of the Republic of Uzbekistan
Kadirova Gulchehra Hakimovna
Institute of Microbiology of the Academy of Sciences of the Republic of Uzbekistan

Abstract

The resistance of strains isolated from heavy-metal-contaminated soils and collection strains of microorganisms to Pb²⁺ ions at concentrations of 48.0, 95.9, and 287.7 mg/L was investigated. Screening was conducted, culture optical density at 600 nm was evaluated, and morphological changes in cells were examined. It was found that Rhodococcus ruber 318, Bacillus cereus 138, Bacillus paralicheniformis, Bacillus subtilis, Bacillus atrophaeus maintained growth at high Pb²⁺ concentrations. At a Pb²⁺ concentration of 287.7 mg/L, the OD₆₀₀ values for B. cereus 138 and B. paralicheniformis exceeded control levels. The identified resistant strains are promising candidates for further study of lead resistance mechanisms and for the assessment of their potential in the bioremediation of contaminated environments.

Article Details

Issue

Vol. 1 No. 8 (2026): Status and Development Prospects of Fundamental and Applied Microbiology: The Viewpoint of Young Scientists

Section

Soil, Water, Ecological and Sanitary Microbiology
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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Shonakhunov Tulkin Erkinovich, & Kadirova Gulchehra Hakimovna. (2026). Screening and assessment of the resistance of microorganisms to different concentrations of lead ions (Pb2+). Partner Conferences of the International Scientific Journal Research Focus, 1(8), 330-333. https://doi.org/10.66073/ReFocus-Conf/3010091

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