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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">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2022-363-10-86-90</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-2318</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>АГРОНОМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGRONOMY</subject></subj-group></article-categories><title-group><article-title>Сравнительная оценка уровня толерантности почвенных изолятов Bacillus subtilis в отношении химических соединений меди</article-title><trans-title-group xml:lang="en"><trans-title>Comparative assessment of the level of tolerance of Bacillus subtilis soil isolates in relation to chemical copper compounds</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1099-3117</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сизенцов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Sizentsov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, доцент кафедры биохимии и микробиологии, </p><p>13, пр. Победы, Оренбург, 460018</p></bio><bio xml:lang="en"><p>Candidate of Biological Sciences, Associate Professor of the Department of Biochemistry and Microbiology, </p><p>3, Pobedy Ave., Orenburg, 460018</p></bio><email xlink:type="simple">kwan111@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/0000-0003-3765-5740</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бибарцева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bibartseva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, доцент кафедры микробиологии, вирусологии, иммунологии,</p><p>45, ул. М. Горького, Оренбург, 460000</p></bio><bio xml:lang="en"><p>Candidate of Medical Sciences, Associate Professor of the Department of Microbiology, Virology, Immunology, </p><p>45, st. M. Gorky, Orenburg, 460000</p></bio><email xlink:type="simple">l.vladi2010@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Синеок</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Sineok</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент,</p><p>13, пр. Победы, Оренбург, 460018</p></bio><bio xml:lang="en"><p>student, </p><p>3, Pobedy Ave., Orenburg, 460018</p></bio><email xlink:type="simple">dashasineok@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Оренбургский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Orenburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Оренбургский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Orenburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>16</day><month>12</month><year>2022</year></pub-date><volume>0</volume><issue>10</issue><fpage>86</fpage><lpage>90</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сизенцов А.Н., Бибарцева Е.В., Синеок Д.М., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Сизенцов А.Н., Бибарцева Е.В., Синеок Д.М.</copyright-holder><copyright-holder xml:lang="en">Sizentsov A.N., Bibartseva E.V., Sineok D.M.</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.vetpress.ru/jour/article/view/2318">https://www.vetpress.ru/jour/article/view/2318</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Биологический потенциал микроорганизмов обусловленный высоким уровнем физиолого-адаптационных характеристик к действию абиотических факторов (формирование резистентных форм) и имеет более широкий спектр применения в отличии от заместительной терапии. В нашей работе представлены экспериментальные данные по оценке уровня толерантности выделенных почвенных изолятов Bacillus subtilis в отношении различных химических соединений меди и степень влияния массированной катионной нагрузки на рост наиболее резистентных штаммов.</p></sec><sec><title>Методы</title><p>Методы. Для реализации поставленных задач использовали методы выделения и идентификации чистых культур микроорганизмов (получение бактериальных изолятов), диффузионный метод агаровых лунок (оценка ингибирующих характеристик химических соединений) и нефелометрический метод (влияние тяжелых металлов на рост микроорганизмов). В ходе выполнения эксперимента нами были выделены девять изолированных чистых культур исследуемых бактерий.</p></sec><sec><title>Результаты</title><p>Результаты. Проведенный сравнительный анализ уровня биотоксичности меди позволил нам выявить наличие общей закономерности устойчивости штаммов к ацетату меди, наиболее высокие ингибирующие характеристики зарегистрированы у CuCl2 · 7H2O. Наиболее устойчивым штаммом к химической нагрузке является изолят B. subtilis Р-8, проявляющий резистентность к сверх высоким концентрациям меди: CuCl2 · 7H2O и CuSO4 — 0,125 М/л, Cu(CH3COO)2 — 0,250 М/л, в то время как штамм B. subtilis Р-6 является наиболее чувствительным к двум из трех химических соединений. При проведении исследований по оценке уровня влияния сульфата меди на рост популяции отобранных нами штаммов было установлено, что данное соединение оказывает выраженное пролонгирующее действие на рост популяции клеток B. subtilis Р-6 и B. subtilis Р-8 с увеличением времени наступления стационарной фазы роста на 6 часов по отношению к контрольным показателям. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. The biological potential of microorganisms due to the high level of physiological and adaptive characteristics to the action of abiotic factors (the formation of resistant forms) and has a wider range of applications in contrast to substitution therapy. Our work presents experimental data on the assessment of the level of tolerance of soil isolates of Bacillus subtilis in relation to various chemical compounds of copper and the degree of influence of a massive cationic load on the growth of the most resistant strains.</p></sec><sec><title>Methods</title><p>Methods. To implement the tasks set, we used the methods of isolation and identification of pure cultures of microorganisms, the diffusion method of agar wells (assessment of the inhibitory characteristics of chemical compounds), and the nephelometric method (the effect of heavy metals on the growth of microorganisms).</p></sec><sec><title>Results</title><p>Results. The most resistant strain to chemical stress is the B. subtilis P-8, isolate, which exhibits resistance to extremely high concentrations of copper: CuCl2 · 7H2O and CuSO4 — 0.125 M/l, Cu(CH3COO)2 — 0.250 M/l, while the strain B. subtilis P-6 is the most sensitive to two of the three chemicals. When conducting studies to assess the level of copper sulfate fusion on the growth of the population of strains selected by us, it was found that this compound has a pronounced prolonging effect on the growth of the cell population of B. subtilis P-6 and B. subtilis P-8 with an increase in the time of onset of the stationary phase of growth by 6 hours, relative to benchmarks. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>почвенная микрофлора</kwd><kwd>Bacillus subtilis</kwd><kwd>биотоксичность</kwd><kwd>медь</kwd><kwd>диффузионный метод</kwd><kwd>нефелометрический метод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>soil microflora</kwd><kwd>Bacillus subtilis</kwd><kwd>biotoxicity</kwd><kwd>copper</kwd><kwd>diffusion method</kwd><kwd>nephelometric method</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Киричук А.А., Горбачев А.Л., Тармаева И.Ю. под редакцией Скальный А.В. 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