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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2022-7.5-1.12</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-3810</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МИКРОБИОЛОГИЯ И ВИРУСОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICROBIOLOGY AND VIRUSOLOGY</subject></subj-group></article-categories><title-group><article-title>Исследование действия ингибиторов синтеза белка на растущие бактерии Escherichia coli с помощью электрохимических сенсоров</article-title><trans-title-group xml:lang="en"><trans-title>Study of the effect of protein synthesis inhibitors on growing Escherichia coli bacteria using electrochemical sensors</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0312-0409</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюленев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyulenev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тюленев Алексей Валерьевич – кандидат биологических наук, старший научный сотрудник лаборатории физиологии и генетики микроорганизмов</p><p>614081, г. Пермь, ул. Голева, 13</p></bio><bio xml:lang="en"><p>Aleksey V. Tyulenev – Cand. Sc. (Biol.), Senior Research Officer at the Laboratory of Physiology and Genetics of Microorganisms</p><p>Goleva str. 13, Perm 614081</p></bio><email xlink:type="simple">leksey333@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6116-8147</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Смирнова Галина Васильевна – доктор биологических наук, ведущий научный сотрудник лаборатории физиологии и генетики микроорганизмов</p><p>614081, г. Пермь, ул. Голева, 13</p></bio><bio xml:lang="en"><p>Galina V. Smirnova – Dr. Sc. (Biol.), Leading Research Officer at the Laboratory of Physiology and Genetics of Microorganisms</p><p>Goleva str. 13, Perm 614081</p></bio><email xlink:type="simple">smirnova@iegm.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4888-1471</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Музыка</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Muzyka</surname><given-names>N. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Музыка Надежда Геннадьевна – кандидат биологических наук, старший научный сотрудник лаборатории физиологии и генетики микроорганизмов</p><p>614081, г. Пермь, ул. Голева, 13</p></bio><bio xml:lang="en"><p>Nadezda G. Muzyka – Cand. Sc. (Biol.), Senior Research Officer at the Laboratory of Physiology and Genetics of Microorganisms</p><p>Goleva str. 13, Perm 614081</p></bio><email xlink:type="simple">mu2ykana@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9864-209X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Октябрьский</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Oktyabrsky</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Октябрьский Олег Николаевич – доктор биологических наук, профессор, заведующий лабораторией физиологии и генетики микроорганизмов</p><p>614081, г. Пермь, ул. Голева, 13</p></bio><bio xml:lang="en"><p>Oleg N. Oktyabrsky – Dr. Sc. (Biol.), Professor, Head of the Laboratory of Physiology and Genetics of Microorganisms</p><p>Goleva str. 13, Perm 614081</p></bio><email xlink:type="simple">oktyabr@iegm.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт экологии и генетики микроорганизмов УрО РАН – филиал ФГБУН «Пермский федеральный исследовательский центр» УрО РАН</institution></aff><aff xml:lang="en"><institution>Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>07</day><month>12</month><year>2022</year></pub-date><volume>7</volume><issue>5-1</issue><fpage>110</fpage><lpage>118</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тюленев А.В., Смирнова Г.В., Музыка Н.Г., Октябрьский О.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Тюленев А.В., Смирнова Г.В., Музыка Н.Г., Октябрьский О.Н.</copyright-holder><copyright-holder xml:lang="en">Tyulenev A.V., Smirnova G.V., Muzyka N.G., Oktyabrsky O.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.actabiomedica.ru/jour/article/view/3810">https://www.actabiomedica.ru/jour/article/view/3810</self-uri><abstract><p>   Обоснование. Изучение механизмов действия антибиотиков требует комплексного использования традиционных микробиологических и физико-химических методов.   Цель исследования. Изучить ответ бактерий Escherichia coli на действие четырёх антибиотиков, ингибиторов синтеза белка, используя комплексный подход.   Методы. Бактерии выращивались в аэробных условиях на минимальной среде М9 с глюкозой. Испытывалось действие тетрациклина, канамицина, стрептомицина и хлорамфеникола. Определяли влияние антибиотиков на выживаемость (CFU) и скорость роста. Дыхательную активность, продукцию сульфида, экстраклеточный калий, а также рН и Eh среды измеряли, используя электрохимические сенсоры, непосредственно в растущей культуре в режиме «real time», мембранный потенциал – с помощью красителя DiBAC и флуоресцентного микроскопа Leica DM2000.   Результаты. Испытуемые антибиотики по своим свойствам разделяются на две группы. Тетрациклин и хлорамфеникол обладали выраженным бактериостатическим действием, ингибирование роста начиналось сразу после добавления антибиотиков и происходило с высокой скоростью. Оба антибиотика ингибировали дыхание, стимулировали продукцию сульфида и скачок Eh. Бактерии, обработанные тетрациклином и хлорамфениколом, лучше сохраняли способность к поддержанию мембранного потенциала и удержанию внутриклеточного калия. Ингибирование дыхания приводило к снижению катаболизма глюкозы, о чём свидетельствовала более низкая ьскорость закисления среды по сравнению с контролем. Ингибирование роста стрептомицином и канамицином начиналось с 30-минутной задержкой. Оба антибиотика оказывали бактерицидное действие, не стимулировали продукцию сульфида и скачок Eh, не ингибировали дыхание, но стимулировали падение мембранного потенциала и внутриклеточного калия. Высокая дыхательная активность способствовала катаболизму глюкозы, о чём свидетельствовало быстрое закисление среды. Интерес представляет обнаружение индуцируемой канамицином продукции сульфида при росте E. coli на среде MOPS.   Заключение. Анализ полученных данных свидетельствует о том, что применение электрохимических сенсоров в сочетании с традиционными методами является перспективным подходом к изучению механизмов действия антибиотиков.</p></abstract><trans-abstract xml:lang="en"><p>   Background. The study of the mechanisms of action of antibiotics requires the integrated use of traditional microbiological and physicochemical methods.   The aim. To study the response of Escherichia coli bacteria to the action of four antibiotics, inhibitors of protein synthesis, using combined approach.   Methods. Bacteria were grown under aerobic conditions on minimal M9 medium with glucose. Tetracycline, kanamycin, streptomycin and chloramphenicol have been tested. The effect of antibiotics on survival (CFU) and growth rate was determined. Respiratory activity, sulfide production, extracellular potassium, as well as pH and Eh of the medium were measured using electrochemical sensors directly in a growing culture in the “real time”, membrane potential was measured using a DiBAC dye and a Leica DM2000 fluorescent microscope.   Results. The tested antibiotics were divided into two groups according to their properties. Tetracycline and chloramphenicol showed a pronounced bacteriostatic effect, growth inhibition began immediately after the addition of antibiotics and occurred at a high rate. Both antibiotics inhibited respiration, stimulated sulfide production and an Eh jump. Bacteria treated with tetracycline and chloramphenicol retained the ability to maintain membrane potential and intracellular potassium better. Inhibition of respiration led to a decrease in glucose catabolism, as evidenced by a lower rate of acidification of the medium compared to the control. Growth inhibition with streptomycin and kanamycin was initiated with a 30-minute delay. Both antibiotics showed a bactericidal effect, did not stimulate sulfide production and Eh jump, did not inhibit respiration, but caused a drop in membrane potential and intracellular potassium. High respiratory activity promoted glucose catabolism, as evidenced by the rapid acidification of the medium. Of interest is the detection of kanamycin-induced sulfide production during E. coli growth on MOPS medium.   Conclusion. An analysis of the data obtained indicates that the use of electrochemical sensors in combination with traditional methods is a promising approach to studying the mechanisms of action of antibiotics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Escherichia coli</kwd><kwd>антибиотики</kwd><kwd>электрохимические сенсоры</kwd><kwd>сульфид</kwd><kwd>dO2</kwd><kwd>pH</kwd><kwd>скорость роста</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Escherichia coli</kwd><kwd>antibiotics</kwd><kwd>electrochemical sensors</kwd><kwd>sulfide</kwd><kwd>dO2</kwd><kwd>pH</kwd><kwd>growth rate</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа поддержана грантом российского научного фонда (РНФ № 22-14-00093). Статья опубликована в рамках V Всероссийской научно-практической конференции молодых учёных с международным участием «Фундаментальные и прикладные аспекты в медицине и биологии»</funding-statement><funding-statement xml:lang="en">This work has been supported by a grant of the Russian Science Foundation (RSF № 22-14-00093). The article was published within the framework of the V All-Russian scientific and practical conference of young scientists with international participation "Fundamental and applied aspects in medicine and biology"</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Oktyabrskii O. N., Smirnova G. V. Redox potential changes in bacterial cultures under tress conditions. Microbiology. 2012; 81 (2): 131-142.</mixed-citation><mixed-citation xml:lang="en">Oktyabrskii O. N., Smirnova G. V. 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