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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">antibiotics</journal-id><journal-title-group><journal-title xml:lang="ru">Антибиотики и Химиотерапия</journal-title><trans-title-group xml:lang="en"><trans-title>Antibiot Khimioter = Antibiotics and Chemotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0235-2990</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/0235-2990-2024-69-7-8-9-16</article-id><article-id custom-type="elpub" pub-id-type="custom">antibiotics-1156</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Антимикробная активность микроорганизмов, выделенных из почвы тропической пустыни Синайского полуострова</article-title><trans-title-group xml:lang="en"><trans-title>Antimicrobial Activity of Microorganisms Isolated from the Soil of the Tropical Desert of the Sinai Peninsula</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кандыба</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kandyba</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандыба Анастасия Леонидовна — инженер, сектор поиска природных соединений, преодолевающих устойчивость бактерий</p><p>Москва</p></bio><bio xml:lang="en"><p>Anastasia L. Kandyba — engineer, Sector for Searching for Natural Compounds that Overcome Bacterial Resistance</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Храмцова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khramtsova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Храмцова Екатерина Вадимовна — инженер, сектор поиска природных соединений, преодолевающих устойчивость бактерий</p><p>Москва</p></bio><bio xml:lang="en"><p>Ekaterina V. Khramtsova — engineer, Sector for Searching for Natural Compounds that Overcome Bacterial Resistance</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9077-1965</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильева</surname><given-names>Б. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilyeva</surname><given-names>B. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Васильева Бязиля Фейзулловна — научный сотрудник, сектор поиска природных соединений, преодолевающих устойчивость бактерий</p><p>Москва</p></bio><bio xml:lang="en"><p>Byazilia F. Vasilieva — Research Fellow, Sector for Searching for Natural Compounds that Overcome Bacterial Resistance</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1128-7460</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бойкова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Boykova</surname><given-names>Ju. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бойкова Юлия Вадимовна — научный сотрудник, сектор поиска природных соединений, преодолевающих устойчивость бактерий</p><p>Москва</p></bio><bio xml:lang="en"><p>Julia V. Boykova — Research Fellow, Sector for Searching for Natural Compounds that Overcome Bacterial Resistance</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0561-4709</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глухова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Glukhova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Глухова Алла Алексеевна — научный сотрудник, сектор поиска природных соединений, преодолевающих устойчивость бактерий</p><p>Москва</p></bio><bio xml:lang="en"><p>Alla A. Glukhova — Researcher, Sector for Searching for Natural Compounds that Overcome Bacterial Resistance</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9632-6854</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ефименко</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Efimenko</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ефименко Татьяна Александровна — к. б. н., старший научный сотрудник, сектор поиска природных соединений, преодолевающих устойчивость бактерий</p><p>Москва</p></bio><bio xml:lang="en"><p>Tatiana A. Efimenko — Ph. D. in Biology, Senior Researcher, Sector for Searching for Natural Compounds that Overcome Bacterial Resistance</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3131-1031</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ефременкова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Efremenkova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ефременкова Ольга Владимировна — к. б. н., зав. сектором, сектор поиска природных соединений, преодолевающих устойчивость бактерий</p><p>Москва</p></bio><bio xml:lang="en"><p>Olga V. Efremenkova — Ph. D. in Biology, Head of Sector, Sector for Searching for Natural Compounds that Overcome Bacterial Resistance</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Научно-исследовательский институт по изысканию новых антибиотиков им. Г.Ф. Гаузе»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Gause Institute of New Antibiotics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>20</day><month>11</month><year>2024</year></pub-date><volume>69</volume><issue>7-8</issue><fpage>9</fpage><lpage>16</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кандыба А.Л., Храмцова Е.В., Васильева Б.Ф., Бойкова Ю.В., Глухова А.А., Ефименко О.В., Ефременкова О.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Кандыба А.Л., Храмцова Е.В., Васильева Б.Ф., Бойкова Ю.В., Глухова А.А., Ефименко О.В., Ефременкова О.В.</copyright-holder><copyright-holder xml:lang="en">Kandyba A.L., Khramtsova E.V., Vasilyeva B.F., Boykova J.V., Glukhova A.A., Efimenko T.A., Efremenkova O.V.</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.antibiotics-chemotherapy.ru/jour/article/view/1156">https://www.antibiotics-chemotherapy.ru/jour/article/view/1156</self-uri><abstract><p>Распространение патогенных антибиотикорезистентных микроорганизмов зачастую приводит к неэффективности антимикробной терапии. Одним из решений этой проблемы является поиск новых активных природных антибиотиков.</p><sec><title>Цель</title><p>Цель. Изыскание в природной среде продуцентов, проявляющих антибиотическую активность в отношении резистентных тест-микроорганизмов, в том числе из группы ESKAPE. Объектом исследования были бактерии, выделенные из мало исследованной среды — почвы тропической пустыни, а именно почвы Синайского полуострова.</p></sec><sec><title>Методы</title><p>Методы. Суспензии почвы высевали на универсальную полноценную агаровую среду №2 Гаузе, пригодную для роста многих бактерий и грибов. Выделенные микроорганизмы идентифицировали по морфологическим признакам и по анализу генов рибосомальной РНК. Глубинное культивирование осуществляли в питательных средах разного состава в условиях аэрирования. Для оценки антимикробной активности использовали тест-штаммы грамположительных и грамотрицательных бактерий, а также грибы.</p></sec><sec><title>Результаты</title><p>Результаты. Выделено 38 культур микроорганизмов: 9 штаммов грибов, 5 штаммов стрептомицетов, 2 штамма Bacillus subtilis и 22 штамма представителей других таксономических групп бактерий. 5 штаммов стрептомицетов и 2 штамма B. subtilis проявляют антибиотическую активность, в частности к резистентным патогенам группы ESKAPE, а именно метициллинорезистентному Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, Escherichia coli, а также к Mycobacterium smegmatis — предварительного теста при поиске противотуберкулёзных средств.</p></sec><sec><title>Заключение</title><p>Заключение. Поиск продуцентов антибиотиков из выделенной почвы пустыни был продуктивным, поскольку четверть выделенных штаммов бактерий проявляет антимикробную активность, в том числе в отношении тест-штаммов с множественной лекарственной устойчивостью. Разработаны условия биосинтеза для последующего выделения и химического изучения. Наиболее перспективными признаны штаммы Streptomyces rochei ИНА 01452 и ИНА 01509, а также Streptomyces sp. ИНА 01523.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. The spread of pathogenic antibiotic-resistant microorganisms often leads to the ineﬃciency of antimicrobial therapy. One of the solutions to this problem is the search for new active natural antibiotics.</p></sec><sec><title>The aim of the study</title><p>The aim of the study. The search for producers that show antibiotic activity in relation to resistant test microorganisms, including those from the ESKAPE group, in the natural environment. The object of the study was bacteria isolated from a poorly studied environment — the soil of the tropical desert, namely the soil of the Sinai Peninsula.</p></sec><sec><title>Methods</title><p>Methods. Soil suspensions were sown on universal sterling agar environment No. 2 Gause, suitable for the growth of many bacteria and fungi. The isolated microorganisms were identiﬁed by morphological characteristics and by the analysis of ribosomal RNA genes. Deep cultivation was carried out in nutrient media of various compositions under aeration conditions. Test strains of gram-positive and gram-negative bacteria, as well as fungi, were used to evaluate antimicrobial activity.</p></sec><sec><title>Results</title><p>Results. 38 cultures of microorganisms were isolated: 9 strains of fungi, 5 strains of streptomycetes, 2 strains of Bacillus subtilis, and 22 strains of representatives of other taxonomic groups of bacteria. 5 strains of streptomycetes and 2 strains of B. subtilis exhibit antibiotic activity, in particular against resistant pathogens of the ESKAPE group, namely methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, Escherichia coli, as well as Mycobacterium smegmatis — a preliminary test in the search for anti-tuberculosis drugs.</p></sec><sec><title>Conclusion</title><p>Conclusion. The search for antibiotic producers from the isolated desert soil was productive, due to the fact that a quarter of the isolated bacterial strains exhibited antimicrobial activity, even against multidrug-resistant test strains. Bio-synthesis conditions have been developed for subsequent isolation and chemical study. The most promising strains are Streptomyces rochei INA 01452 and INA 01509, as well as Streptomyces sp. INA 01523.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>микроорганизмы тропической пустыни</kwd><kwd>Синайский полуостров</kwd><kwd>Streptomyces rochei</kwd><kwd>Bacillus subtilis</kwd><kwd>ESKAPE</kwd><kwd>MRSA</kwd><kwd>антибиотическая активность</kwd><kwd>антибиотикорезистентность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tropical desert microorganisms</kwd><kwd>Sinai Peninsula</kwd><kwd>Streptomyces rochei</kwd><kwd>Bacillus subtilis</kwd><kwd>ESKAPE</kwd><kwd>MRSA</kwd><kwd>antibiotic activity</kwd><kwd>antibiotic resistance</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства науки и высшего образования Российской Федерации (тема № АААА-А18-118011650006-5).</funding-statement><funding-statement xml:lang="en">The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme No. АААА-А18-118011650006-5).</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">O’Neill J. 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