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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">boolt</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень Государственного Никитского ботанического сада</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of the State Nikitsky Botanical Gardens</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0513-1634</issn><publisher><publisher-name>Federal State Funded Institution of Science “The Labour Red Banner Order Nikitsky Botanical Gardens – National scientific Center of the RAS”</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">boolt-1016</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>ФИЗИОЛОГИЯ И БИОХИМИЯ РАСТЕНИЙ</subject></subj-group></article-categories><title-group><article-title>Секреция биологически активных веществ железистыми трихомами разных морфологических типов у некоторых видов Pelargonium (geraniaceae)</article-title><trans-title-group xml:lang="en"><trans-title>Secretion of biologically active substances by glandular trichomes of different morphological types in some Pelargonium (Geraniaceae) species</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>Рябуха</surname><given-names>У. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryabukha</surname><given-names>U. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ульяна Алексеевна Рябуха</p><p>197022, г. Санкт-Петербург, ул. Профессора Попова, д. 2</p></bio><email xlink:type="simple">URyabukha@binran.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Муравник</surname><given-names>Л. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Muravnik</surname><given-names>L. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Людмила Евгеньевна Муравник</p><p>197022, г. Санкт-Петербург, ул. Профессора Попова, д. 2</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ФГБУН Ботанический институт им. В.Л. Комарова РАН</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>16</day><month>10</month><year>2025</year></pub-date><volume>0</volume><issue>156</issue><fpage>18</fpage><lpage>24</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рябуха У.А., Муравник Л.Е., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Рябуха У.А., Муравник Л.Е.</copyright-holder><copyright-holder xml:lang="en">Ryabukha U.A., Muravnik L.E.</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://boolt.elpub.ru/jour/article/view/1016">https://boolt.elpub.ru/jour/article/view/1016</self-uri><abstract><p>Проведена серия гистохимических тестов для качественного определения вторичных метаболитов в железистых трихомах (ЖТ) листьев и элементов цветка у трёх видов Pelargonium: Pelargonium odoratissimum (L.) L'Hér., Pelargonium exstipulatum (Cav.) L'Hér. и Pelargonium vitifolium (L.) L'Hér. У исследованных видов обнаруживаются ЖТ пяти морфологических типов. Установлено, что секрет может содержать фенолы, алкалоиды, терпены и кислые полисахариды. При этом набор выявляемых вторичных соединений различается у трихом разных типов. Кроме того, отмечаются видоспецифичные особенности окрашивания в гистохимических реакциях у всех типов ЖТ. Наиболее интенсивная секреция и большее разнообразие компонентов характерны для трихом 1-го типа. В то же время, у трихом 2-го и 4-го типов наблюдаются различия в составе секрета, обусловленные их локализацией на разных органах. Синтезированные вещества могут накапливаться в вакуолях и цитоплазме ЖТ или выводиться в субкутикулярную полость</p></abstract><trans-abstract xml:lang="en"><p>A series of histochemical tests were carried out for the qualitative determination of secondary metabolites in glandular trichomes (GTs) of leaves and flower elements in three Pelargonium (Geraniaceae) species: P. odoratissimum, P. exstipulatum and P. vitifolium. GTs of five morphological types are found in the studied species. The secreted substances may contain phenols, alkaloids, terpenes and acidic polysaccharides. The set of detected secondary compounds differs in different types of trichomes. In addition, there are species-specific staining features in histochemical reactions in GTs of all types. The most intense secretion and a greater variety of components are found in all trichomes of the 1st type. At the same time, trichomes of the 2nd and the 4th types have differences in the composition of secretions due to their localization on different organs. The synthesized substances can be accumulated in the cytoplasm of the GTs or be excreted into the subcuticular cavity.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Geraniaceae</kwd><kwd>Pelargonium odoratissimum</kwd><kwd>P. exstipulatum</kwd><kwd>P. vitifolium</kwd><kwd>железистые трихомы</kwd><kwd>гистохимия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Geraniaceae</kwd><kwd>Pelargonium odoratissimum</kwd><kwd>P. exstipulatum</kwd><kwd>P. vitifolium</kwd><kwd>glandular trichomes</kwd><kwd>histochemistry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках Гос. задания БИН РАН (№ 1021071912890-3-1.6.11).</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">Рябуха У.А., Пожванов Г.А., Муравник Л.Е. 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