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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">vestnik-bio-msu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Московского университета. Серия 16. Биология</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Moskovskogo universiteta. Seriya 16. Biologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0137-0952</issn><publisher><publisher-name>Lomonosov Moscow State University,  School of Biology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55959/MSU0137-0952-16-80-1-3</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnik-bio-msu-1495</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>Оригинальные исследования</subject></subj-group></article-categories><title-group><article-title>Зависимость адаптации штамма Glutamicibacter sp. SMB32 к высокой солености среды от стадии роста и температуры</article-title><trans-title-group xml:lang="en"><trans-title>Dependence of the adaptation of the strain Glutamicibacter sp. SMB32 to high salinity environment depending on growth stage and temperature</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4721-2863</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ананьина</surname><given-names>Л. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Anan’ina</surname><given-names>L. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ананьина Людмила Николаевна – канд. биол. наук, ст. науч. сотр. лаборатории микробиологии техногенных экосистем, </p><p>614081, г. Пермь, ул. Голева, д. 13.</p></bio><bio xml:lang="en"><p>13, Golev St., Perm, 614081.</p></bio><email xlink:type="simple">ludaananyina@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/0000-0002-8267-4361</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горбунов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorbunov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горбунов Алексей Аркадьевич – канд. хим. наук, ст. науч. сотр. лаборатории синтеза активных реагентов, </p><p>г. Пермь, ул. Академика Королева, д. 3.</p></bio><bio xml:lang="en"><p>3, Akademika Koroleva str., Perm, 614013.</p></bio><email xlink:type="simple">agorbunof@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3494-2886</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шестакова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shestakova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шестакова Елена Анатольевна – инженер лаборатории микробиологии техногенных экосистем, </p><p>614081, г. Пермь, ул. Голева, д. 13.</p></bio><bio xml:lang="en"><p>13, Golev St., Perm, 614081.</p></bio><email xlink:type="simple">shestakova.e@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, Уральское отделение Российской академии наук –  филиал Пермского федерального исследовательского центра УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences – Filial of the Perm Federal Research Centre of the Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт технической химии, Уральское отделение Российской академии наук – филиал Пермского федерального исследовательского центра УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences – Filial of the Perm Federal Research Centre of the Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>29</day><month>06</month><year>2025</year></pub-date><volume>80</volume><issue>1</issue><fpage>18</fpage><lpage>25</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ананьина Л.Н., Горбунов А.А., Шестакова Е.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ананьина Л.Н., Горбунов А.А., Шестакова Е.А.</copyright-holder><copyright-holder xml:lang="en">Anan’ina L.N., Gorbunov A.A., Shestakova E.A.</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://vestnik-bio-msu.elpub.ru/jour/article/view/1495">https://vestnik-bio-msu.elpub.ru/jour/article/view/1495</self-uri><abstract><p>При неблагоприятных условиях клетки бактерий синтезируют низкомолекулярные органические соединения, известные как совместимые вещества, которые даже в высоких концентрациях не оказывают негативного действия на метаболизм. В данной работе исследовали влияние температурного режима и фазы роста культуры на синтез этих соединений штаммом Glutamicibacter sp. SMB32, филогенетически родственным виду Glutamicibacter halophytocola, в условиях повышенной солености среды. В клетках на экспоненциальной фазе роста количество глутамата увеличивалось при повышении солености среды до 5% NaCl, но при 8% и 10% NaCl имело обратную зависимость от осмолярности среды культивирования. Содержание трегалозы в клетках штамма SMB32 возрастало с повышением солености среды до 5% NaCl, но в присутствии 8% и 10% NaCl ее количество значимо не изменялось. Положительная корреляция внутриклеточного количества с соленостью среды выявлена только для пролина. Между тем, в клетках, выросших до стационарной фазы роста в присутствии 5% и 10% NaCl, пролин не обнаружен. При этом в клетках возрастало содержание трегалозы. В настоящей работе впервые проведено исследование влияния комбинированного действия абиотических факторов на синтез вторичных метаболитов клетками бактерий рода Glutamicibacter. Показано, что одновременное действие высокого осмотического давления (5% NaCl) и повышенной температуры (32ºC) приводит к аддитивному эффекту в отношении соединения, на синтез которого они влияли по отдельности. Так, в клетках штамма SMB32 отмечено многократное увеличение уровня синтеза трегалозы, задействованной в адаптации клеток как к повышенному осмотическому давлению среды, так и к воздействию высокой температуры. Комбинированное действие абиотических факторов не оказывало влияния на количество пролина в клетках. Полученные данные могут лечь в основу разработки методов управления метаболическим состоянием автохтонных бактерий рода Glutamicibacter путем внесения растворов совместимых веществ в соотношении, подобранном с учетом действующих абиотических факторов.</p></abstract><trans-abstract xml:lang="en"><p>The pool of compatible solutes of the strain Glutamicibacter sp. SMB32, phylogenetically closely related to the species Glutamicibacter halophytocola, was studied under high salinity conditions depending on the growth phase and temperature. In cells at the exponential growth phase, the intracellular amount of glutamate increased with an increase in the salinity of the medium to 5% NaCl, but at 8 and 10% NaCl it had an inverse relationship with the osmolarity of the cultivation medium. The pool of trehalose in the cells of the strain SMB32 increased with an increase in the salinity of the medium to 5% NaCl, but in the presence of 8 and 10% NaCl its intracellular amount did not change significantly. A positive correlation between the intracellular amount and the salinity of the medium in Glutamicibacter sp. SMB32 cells was found only for proline. In the cells grown to the stationary growth phase in a medium containing 5 and 10% NaCl, proline was not detected. At the same time, the content of trehalose in the cells increased. In this work, the effect of the combined action of abiotic factors on the synthesis of secondary metabolites by cells of bacteria of the genus Glutamicibacter was studied for the first time. It was shown that the simultaneous action of high osmotic pressure (5% NaCl) and elevated temperature (32°C) leads to an additive effect with respect to the compound, the synthesis of which they affect separately. Thus, in the cells of the SMB32 strain, a multiple increase in the synthesis of trehalose was noted, which is involved in the adaptation of cells both to the increased osmotic pressure of the medium and to the effect of high temperature. While the simultaneous action of abiotic factors did not affect the amount of proline in the cells. Our observations revealed that trehalose is critical for growth at high temperatures, and in the adaptation of the strain Glutamicibacter sp. SMB32 to high salt concentrations the leading role belongs to proline. The data obtained can be used for the development of methods for controlling the metabolic state of autochthonous bacteria of the genus Glutamicibacter by introducing solutions of compatible solutes with their ratio, selected taking into account the current abiotic factors.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>совестимые вещества</kwd><kwd>Glutamicibacter</kwd><kwd>температура</kwd><kwd>соленость</kwd><kwd>комбинированное действие абиотических факторов</kwd><kwd>адаптация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>compatible solutes</kwd><kwd>Glutamicibacter</kwd><kwd>temperature</kwd><kwd>salinity</kwd><kwd>combined effect of abiotic factors</kwd><kwd>adaptation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского научного фонда и Министерства образования и науки Пермского края в рамках научного проекта № 24-26-20070.</funding-statement><funding-statement xml:lang="en">The research was funded by Russian Science Foundation and the Ministry of Education and Science of the Perm Krai №24-26-20070.</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">CHEN M., Xiao X., Wang P., Zeng X., Wang F. 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