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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">3034-624X</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">130220</article-id><article-id pub-id-type="doi">10.31857/S0015330322600723</article-id><article-id pub-id-type="edn">IBPENP</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">Characteristics of the complex of polyphenol compounds of Yakutian endemic <italic>Dracocephalum jacutense</italic> Peschkova using tandem mass spectrometry</article-title><trans-title-group xml:lang="ru"><trans-title>Характеристика комплекса полифенольных соединений эндемика Якутии <italic>Dracocephalum jacutense</italic> Peschkova с использованием метода тандемной масс-спектрометрии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Okhlopkova</surname><given-names>Zh. M.</given-names></name><name xml:lang="ru"><surname>Охлопкова</surname><given-names>Ж. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zhm.okhlopkova@s-vfu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Razgonova</surname><given-names>M. P.</given-names></name><name xml:lang="ru"><surname>Разгонова</surname><given-names>М. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zhm.okhlopkova@s-vfu.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Egorova</surname><given-names>P. S.</given-names></name><name xml:lang="ru"><surname>Егорова</surname><given-names>П. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zhm.okhlopkova@s-vfu.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Golokhvast</surname><given-names>K. S.</given-names></name><name xml:lang="ru"><surname>Голохваст</surname><given-names>К. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zhm.okhlopkova@s-vfu.ru</email><xref ref-type="aff" rid="aff5"/><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff6"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">North-Eastern Federal University</institution></aff><aff><institution xml:lang="ru">Федеральное государственное автономное образовательное учреждение высшего образования “Северо-Восточный федеральный университет имени М.К. Аммосова”</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Far Eastern Federal University, Advanced Engineering School, Institute of Biotechnology, Bioengineering, and Food Systems</institution></aff><aff><institution xml:lang="ru">Федеральное государственное автономное образовательное учреждение высшего образования “Дальневосточный федеральный университет”, Передовая инженерная школа “Институт биотехнологий, биоинженерии и пищевых систем”,</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Federal Research Center Vavilov All-Russia Institute of Plant Genetic Resources (VIR)</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное научное учреждение “Федеральный исследовательский центр Всероссийский институт генетических ресурсов растений им. Н.И. Вавилова” (ВИР)</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Institute for Biological Problems of Permafrost, Siberian Branch, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт биологических проблем криолитозоны Сибирского отделения Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Far Eastern Federal University, REC Nanotechnology, Polytechnic Institute</institution></aff><aff><institution xml:lang="ru">Федеральное государственное автономное образовательное учреждение высшего образования “Дальневосточный федеральный университет”, НОЦ нанотехнологии, Политехнический институт</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Siberian Federal Scientific Center for Agrobiotechnologies, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное научное учреждение “Сибирский федеральный научный центр агробиотехнологий Российской академии наук”</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-05-01" publication-format="electronic"><day>01</day><month>05</month><year>2023</year></pub-date><volume>70</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>327</fpage><lpage>336</lpage><history><date date-type="received" iso-8601-date="2023-08-21"><day>21</day><month>08</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Ж.М. Охлопкова, М.П. Разгонова, П.С. Егорова, К.С. Голохваст</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Ж.М. Охлопкова, М.П. Разгонова, П.С. Егорова, К.С. Голохваст</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Ж.М. Охлопкова, М.П. Разгонова, П.С. Егорова, К.С. Голохваст</copyright-holder><copyright-holder xml:lang="ru">Ж.М. Охлопкова, М.П. Разгонова, П.С. Егорова, К.С. Голохваст</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journals.rcsi.science/0015-3303/article/view/130220">https://journals.rcsi.science/0015-3303/article/view/130220</self-uri><abstract xml:lang="en"><p><italic>Dracocephalum jacutense</italic> Peschkova is a rare and endangered species of the genus <italic>Dracocephalum</italic> L. of Lamiaceae family. The species was first described in 1997 and listed in the Red Data Book of Yakutia (2017). Until now, due to the rare occurrence of <italic>D. jacutense</italic>, almost none of its phytochemical studies have been carried out and there is no information on the content of biologically active compounds (secondary metabolites) of the plant. In this work, using the method of tandem mass spectrometry, a complex of polyphenolic compounds was studied in the inflorescences of the <italic>Dracocephalum jacutense</italic>, collected in the areas of its first discovery - the Kobyaysky district of the Republic of Sakha (Yakutia). As a result of the analysis, 48 polyphenolic compounds were found in the alcohol extracts of <italic>Dracocephalum jacutense</italic> inflorescences, among which 17 flavones, 7 flavonols, 3 flavan-3-ols, 12 phenolic acids, 1 lignan, 2 coumarins, 6 anthocyanidins were identified. It should be noted that more than half (30 compounds) of all the identified polyphenols for representatives of the genus <italic>Dracocephalum</italic> L. were discovered for the first time. The results obtained state the unique composition of polyphenolic compounds in the inflorescences of <italic>D. jacutense</italic> Peschkova. In order to preserve this sparse local endemic of Eastern Siberia, work has begun on the development of an effective method for its micropropagation in vitro.</p></abstract><trans-abstract xml:lang="ru"><p>Змееголовник якутский (<italic>Dracocephalum jacutense</italic> Peschkova) ‒ редкий и исчезающий вид рода <italic>Dracocephalum</italic> L. семейства губоцветных. Вид был впервые описан в 1997 г., занесен в Красную книгу Якутии (2017 г.). До настоящего времени в силу редкой встречаемости D. jacutense практически не проведены его фитохимические исследования и нет информации о содержании в этом растении биологически активных соединений (вторичных метаболитов). В настоящей работе с использованием метода тандемной масс-спектрометрии осуществлено исследование комплекса полифенольных соединений в соцветиях змееголовника якутского, собранного в местах его первого обнаружения ‒ Кобяйском районе Республики Саха (Якутия). В результате проведенного анализа в спиртовых экстрактах соцветий Dracocephalum jacutense было обнаружено 48 полифенольных соединений, среди которых идентифицировано 17 флавонов, 7 флавонолов, 3 флаван-3-олов, 12 фенолокислот, 1 лигнан, 2 кумарина, 6 антоцианидинов. Следует отметить, что из всех идентифицированных полифенолов более половины (30 соединений) для представителей рода <italic>Dracocephalum</italic> L. было обнаружено впервые. Полученные результаты свидетельствуют об уникальном составе полифенольных соединений в соцветиях <italic>D. jacutense</italic> Peschkova. С целью сохранения этого узколокального эндемика Восточной Сибири начаты работы по разработке эффективного метода его микроклонального размножения in vitro.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Dracocephalum jacutense</kwd><kwd>HPLC-MS/MS</kwd><kwd>tandem mass spectrometry</kwd><kwd>polyphenolic compounds</kwd><kwd>CID spectrum</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Dracocephalum jacutense</kwd><kwd>ВЭЖХ- МС/МС</kwd><kwd>тандемная масс-спектрометрия</kwd><kwd>полифенольные соединения</kwd><kwd>CID-спектр</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Пешкова Г.А. Dracocephalum L. // Флора Сибири. Т. 11. Новосибирск: Наука, 1997. С. 170.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Денисова Г.Р., Николин Е.Г. 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