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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Advances in Chemical Physics</journal-id><journal-title-group><journal-title xml:lang="en">Advances in Chemical Physics</journal-title><trans-title-group xml:lang="ru"><trans-title>Физиология растений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0015-3303</issn><issn publication-format="electronic">3034-6126</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">648149</article-id><article-id pub-id-type="doi">10.31857/S0015330322600516</article-id><article-id pub-id-type="edn">GKWEZO</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Comparative analysis of the composition of sterols in embryogenic and nonembryogenic cell lines of <italic>Larix sibirica</italic> Ledeb.</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнительный анализ состава стеринов эмбриогенных и неэмбриогенных клеточных линий <italic>Larix sibirica</italic> Ledeb.</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Semenova</surname><given-names>Natalia V.</given-names></name><name xml:lang="ru"><surname>Семёнова</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>tashasemyonova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shmakov</surname><given-names>Vladimir N.</given-names></name><name xml:lang="ru"><surname>Шмаков</surname><given-names>В. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>tashasemyonova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Konstantinov</surname><given-names>Yurii M.</given-names></name><name xml:lang="ru"><surname>Константинов</surname><given-names>Ю. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>tashasemyonova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dudareva</surname><given-names>Lyubov V.</given-names></name><name xml:lang="ru"><surname>Дударева</surname><given-names>Л. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>tashasemyonova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное учреждение науки Сибирский институт физиологии и биохимии растений Сибирского отделения Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-03-01" publication-format="electronic"><day>01</day><month>03</month><year>2023</year></pub-date><volume>70</volume><issue>2</issue><fpage>181</fpage><lpage>191</lpage><history><date date-type="received" iso-8601-date="2025-01-28"><day>28</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Н.В. Семёнова, В.Н. Шмаков, Ю.М. Константинов, Л.В. Дударева</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Н.В. Семёнова, В.Н. Шмаков, Ю.М. Константинов, Л.В. Дударева</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Н.В. Семёнова, В.Н. Шмаков, Ю.М. Константинов, Л.В. Дударева</copyright-holder><copyright-holder xml:lang="ru">Н.В. Семёнова, В.Н. Шмаков, Ю.М. Константинов, Л.В. Дударева</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0015-3303/article/view/648149">https://journals.eco-vector.com/0015-3303/article/view/648149</self-uri><abstract xml:lang="en"><p>The cell lines of Siberian larch (<italic>Larix sibirica</italic> Ledeb.), possessing different embryogenic potential, were studied. Qualitative and quantitative content of sterol components was comparatively analyzed in their tissues with the help of gas chromatography-mass spectrometry. Significant differences in these parameters were found between both groups of the lines in fractions of free sterols and their esters. In addition to sterol compounds, squalen, which is a triterpenic intermediate in sterol biosynthesis, was revealed. Of free sterols, β-sitosterol, campesterol, isofucosterol, and stigmasterol dominated in the embryogenic lines, while β-sitosterol, campesterol, and stigmasterol in nonembryogenic ones. The campesterol concentration was 1.3–1.9 times higher in the embryogenic than nonembryogenic lines. Since campesterol is a precursor of brassinosteroids, it is likely that its level is high due to an embryogenic state of these cell lines. Only the embryogenic lines contained appreciable amounts of isofucosterol. The fraction of sterol esters exhibited wider component diversity in the nonembryogenic than the embryogenic lines. In all the cell lines, among the identified sterol esters, the substances without double bonds, bearing, as a structural fragment, a sterane core—perhydrocyclopenta[a]phenanthrene—were the most abundant. Their content ranged from 52 to 71% of the total amount of sterol esters. The revealed differences in the compositions of sterols and their esters, between the <italic>L. sibirica</italic> cell lines with different embryogenic potential, witness to the considerable rearrangements in sterol metabolism in the course of embryogenesis. The line-specific differences may indicate the involvement of these metabolites in formation of embryos.</p></abstract><trans-abstract xml:lang="ru"><p>C помощью метода газовой хромато-масс-спектрометрии проведен сравнительный анализ качественного и количественного составов стериновых компонентов в тканях клеточных линий лиственницы сибирской (<italic>Larix sibirica</italic> Ledeb.) с разным эмбриогенным потенциалом. Обнаружены существенные межлинейные различия в качественном и количественном содержаниях фракций свободных стеринов и эфиров стеринов. Наряду со стериновыми компонентами обнаружен сквален – тритерпен, являющийся промежуточным соединением в биосинтезе стеринов. Доминирующими свободными стеринами эмбриогенных клеточных линий были β-ситостерин, кампестерин, изофукостерин и стигмастерин, а неэмбриогенных линий – β-ситостерин, кампестерин и стигмастерин. При этом содержание кампестерина в эмбриогенных линиях было в 1.3−1.9 раза выше, чем в неэмбриогенных. Поскольку кампестерин является предшественником брассиностероидов, логично предположить, что его высокое содержание обусловлено эмбриогенным состоянием клеточных линий. Изофукостерин в заметных количествах найден только в эмбриогенных линиях. Во фракции эфиров стеринов неэмбриогенных линий обнаружено бόльшее разнообразие компонентов по сравнению с эмбриогенными линиями. Во всех клеточных линиях среди идентифицированных стериновых эфиров преобладали соединения без двойных связей, несущие в качестве структурного фрагмента стерановое ядро (кор) – циклопентанопергидрофенантрен: их содержание варьировало от 52 до 71% от суммы эфиров стеринов. Обнаруженные различия в составе стеринов и эфиров стеринов у клеточных линий <italic>L. sibirica</italic> с разным эмбриогенным потенциалом свидетельствуют о значительных перестройках в метаболизме стеринов в ходе эмбриогенеза, которые, могут быть связаны с их участием в этом процессе на стадии формирования зародышей.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Larix sibirica</kwd><kwd>cell lines</kwd><kwd>somatic embryogenesis</kwd><kwd>sterols</kwd><kwd>sterol esters</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Larix sibirica</kwd><kwd>клеточные линии</kwd><kwd>соматический эмбриогенез</kwd><kwd>стерины</kwd><kwd>эфиры стеринов</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Третьякова И.Н., Ворошилова Е.В., Шуваев Д.Н., Пак М.Э. Перспективы микроклонального размножения хвойных в культуре in vitro через соматический эмбриогенез // Хвойные бореальной зоны. 2012. Т. 30. 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