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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">vestib</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия биологических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Biological Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1029-8940</issn><issn pub-type="epub">2524-230X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1029-8940-2021-66-3-282-294</article-id><article-id custom-type="elpub" pub-id-type="custom">vestib-758</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Содержание фотосинтетических пигментов и параметры окислительного стресса в листьях амаранта при нарастающем водном дефиците</article-title><trans-title-group xml:lang="en"><trans-title>Photosynthetic pigments content and parameters of oxidative stress in the amaranth species with increasing water deficiency</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>Кабашникова</surname><given-names>Л. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Kabashnikova</surname><given-names>L. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кабашникова Людмила Федоровна - член-корреспондент, доктор биологических наук, доцент, заведующий лабораторией.</p><p>ул. Академическая, 27, 220072, Минск.</p></bio><bio xml:lang="en"><p>Luidmila F. Kabashnikova - Corresponding Member, D. Sc. (Biol.), Associate Professor, Head of the Laboratory, Institute of Biophysics and Cell Engineering of the National Academy of Sciences of Belarus.</p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">kabashnikova@ibp.org.by</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>Доманская</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Domanskaya</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доманская Ирина Николаевна - кандидат биологических наук, научный сотрудник.</p><p>ул. Академическая, 27, 220072, Минск.</p></bio><bio xml:lang="en"><p>Irina N. Domanskaya - Ph. D. (Biol.), Researcher, Institute of Biophysics and Cell Engineering of the National Academy of Sciences of Belarus.</p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">domanin07@mail.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>Пилипович</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pilipovich</surname><given-names>T. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пилипович Татьяна Сергеевна - младший научный сотрудник.</p><p>ул. Академическая, 27, 220072, Минск.</p></bio><bio xml:lang="en"><p>Tatsiana S. Pilipovich - Junior Researcher, Institute of Biophysics and Cell Engineering of the National Academy of Sciences of Belarus.</p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">tatsiana.bachyshch@gmail.com</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>Пашкевич</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pashkevich</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пашкевич Любовь Валерьевна - научный сотрудник.</p><p>ул. Академическая, 27, 220072, Минск.</p></bio><bio xml:lang="en"><p>Liubou V. Pashkevich – Researcher, Institute of Biophysics and Cell Engineering of the National Academy of Sciences of Belarus.</p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">ljubi.k87@gmail.com</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>Мартысюк</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Martysiuk</surname><given-names>H. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мартысюк Анна Викторовна - младший научный сотрудник.</p><p>ул. Академическая, 27, 220072, Минск.</p></bio><bio xml:lang="en"><p>Hanna V. Martysiuk - Junior Researcher, Institute of Biophysics and Cell Engineering of the National Academy of Sciences of Belarus.</p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">anya.mart@list.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>Мотылева</surname><given-names>С. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Motyleva</surname><given-names>S. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мотылева Светлана Михайловна - кандидат сельскохозяйственных наук, доцент, заведующий лабораторией.</p><p>ул. Загорьевская, 4, 115598, Москва.</p></bio><bio xml:lang="en"><p>Svetlana M. Motyleva - Ph. D. (Agricult.), Associate Professor, Head of the Laboratory, Federal Horticultural Research Center for Breeding, Agrotechnology and Nursery.</p><p>4, Zagorevskaya Str., 115598, Moscow.</p></bio><email xlink:type="simple">motyleva_svetlana@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гинс</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gins</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гинс Мурат Сабирович - член-корреспондент, доктор биологических наук, заведующий лабораторией.</p><p>ул. Селекционная, 14, 143080, пос. ВНИИССОК, Московская обл.</p></bio><bio xml:lang="en"><p>Murat S. Gins - Corresponding Member, D. Sc. (Biol.), Associate Professor, Head of the Laboratory, Federal Scientific Center of Vegetable Growing.</p><p>14, Selektsionnaya Str., 143080, VNIISSOK village, Moscow region.</p></bio><email xlink:type="simple">anirr@bk.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тетянников</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tetyannikov</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тетянников Николай Валерьевич - кандидат сельскохозяйственных наук, научный сотрудник.</p><p>Загорьевская 4, 115598, Москва.</p></bio><bio xml:lang="en"><p>Nikolay V. Tetyannikov - Ph. D. (Agricult.), Researcher, Federal Horticultural Research Center for Breeding, Agrotechnology and Nursery.</p><p>4, Zagorevskaya Str., 115598, Moscow.</p></bio><email xlink:type="simple">tetyannikovnv@ya.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт биофизики и клеточной инженерии НАН Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Biophysics and Cell Engineering of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный научный селекционно-технологический центр садоводства и питомниководства</institution></aff><aff xml:lang="en"><institution>Federal Horticultural Research Center for Breeding, Agrotechnology and Nursery</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральный научный центр овощеводства</institution></aff><aff xml:lang="en"><institution>Federal Scientific Center of Vegetable Growing</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>04</day><month>08</month><year>2021</year></pub-date><volume>66</volume><issue>3</issue><fpage>282</fpage><lpage>294</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кабашникова Л.Ф., Доманская И.Н., Пилипович Т.С., Пашкевич Л.В., Мартысюк А.В., Мотылева С.М., Гинс М.С., Тетянников Н.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Кабашникова Л.Ф., Доманская И.Н., Пилипович Т.С., Пашкевич Л.В., Мартысюк А.В., Мотылева С.М., Гинс М.С., Тетянников Н.В.</copyright-holder><copyright-holder xml:lang="en">Kabashnikova L.F., Domanskaya I.N., Pilipovich T.S., Pashkevich L.V., Martysiuk H.V., Motyleva S.M., Gins M.S., Tetyannikov N.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://vestibio.belnauka.by/jour/article/view/758">https://vestibio.belnauka.by/jour/article/view/758</self-uri><abstract><p>Изучена динамика содержания фотосинтетических пигментов и параметров окислительного стресса при нарастающем водном дефиците в листьях 40-дневных растений двух видов амаранта – Amaranthus paniculatus L. (сорт Рубин) и Amaranthus caudatus L. (сорт Чырвоны аксамит), выращенных в горшечной культуре. Обнаружены видовые особенности развития водного дефицита в листьях амаранта: у растений амаранта Amaranthus paniculatus L. уже через 4 дня почвенной засухи отмечалось более сильное развитие водного дефицита (WD), чем у Amaranthus caudatus L., а через 8 дней WD у двух видов возрастал до 73,7 и 55,7 % соответственно. При умеренной засухе количество фотосинтетических пигментов (хлорофилла (Хл) и каротиноидов) в пересчете на сухую массу листа увеличивалось у двух видов амаранта, но через 8 дней почвенной засухи содержание Хл (а + b) было снижено в 2,0-2,1 раза, а каротиноидов - в 1,8-1,9 раза относительно физиологического уровня. В результате 4-дневной почвенной засухи в листьях Amaranthus paniculatus L. происходило существенное снижение содержания активных форм кислорода (АФК) и активности перекисного окисления липидов (ПОЛ), тогда как у Amaranthus caudatus L. наблюдалось повышение уровней АФК и ПОЛ. При возрастании давления стрессового фактора в листьях амаранта двух изученных видов отмечалось снижение содержания АФК и активности ПОЛ относительно физиологических значений. Предполагается, что на разных этапах почвенной засухи в листьях изученных видов амаранта имеются различия в механизмах генерации АФК и процессах ПОЛ.</p></abstract><trans-abstract xml:lang="en"><p>The dynamics of the photosynthetic pigments content and parameters of oxidative stress with an increasing water deficit in the leaves of 40-days-old plants of two amaranth species - Amaranthus paniculatus L. (cv. Rubin) and Amaranthus caudatus L. (cv. Chyrvony aksamit), grown in a pot culture, was studied. Specific features of the development of water deficiency in amaranth leaves were revealed: amaranth plants Amaranthus paniculatus L. showed a stronger development of water deficit in leaves than Amaranthus caudatus L. after 4-days soil drought, which after 8 days increased in two species to 73.7 and 55.7 %, respectively. Under moderate drought, the amount of photosynthetic pigments (chlorophyll (Chl) and carotenoids) based on dry leaf weight increased in two amaranth species, but after 8 days of soil drought, the content of Chl (a + b) was reduced by 2.0-2.1 times, and carotenoids - 1.8-1.9 times relative to the physiological level. As a result of a 4-days soil drought in the leaves of Amaranthus paniculatus L., there was a significant decrease in the content of reactive oxygen species (ROS) and the activity of lipid peroxidation (LPO), while in Amaranthus caudatus L. an increase in the levels of ROS and LPO was observed. With an increase in the pressure of the stress factor in the leaves of amaranth of the two studied species, a decrease in the ROS content and LPO activity relative to physiological values was revealed. A conclusion was made about the different mechanisms of ROS generation and the flow of LPO processes at different stages of soil drought in the leaves of different amaranth species.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>водный дефицит</kwd><kwd>фотосинтетические пигменты</kwd><kwd>активные формы кислорода</kwd><kwd>перекисное окисление липидов</kwd><kwd>амарант</kwd><kwd>Amaranthus paniculatus L.</kwd><kwd>Amaranthus caudatus L.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>water deficit</kwd><kwd>photosynthetic pigments</kwd><kwd>reactive oxygen species</kwd><kwd>lipid peroxidation</kwd><kwd>amaranth</kwd><kwd>Amaranthus paniculatus L.</kwd><kwd>Amaranthus caudatus L.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность сотрудникам лаборатории биоразнообразия растительных ресурсов ГНУ «Центральный ботанический сад НАН Беларуси» С.Е. Лобану и И.М. Савич за научную консультацию и предоставленный семенной и посадочный материл двух видов амаранта - Amaranthus paniculatus L. (сорт Рубин) и Amaranthus caudatus L. (сорт Чырвоны аксамит). Работа выполнена при финансовой поддержке Белорусского республиканского фонда фундаментальных исследований (проект № Б20Р-298) и Российского фонда фундаментальных исследований (проект № 20-516-00012).</funding-statement><funding-statement xml:lang="en">The authors express their gratitude to the staff of the laboratory of biodiversity of plant resources of the State Scientific Institution “Central Botanical Garden of the National Academy of Sciences of Belarus” S.Ye. Loban. and I.M. Savich for scientific advice and provided seed and planting material for two species of amaranth - Amaranthus paniculatus L. (Rubin variety) and Amaranthus caudatus L. (Chyrvony aksamit variety). This work was financially supported by the Belarusian Republican Foundation for Basic Research (project No. B20R-298) and the Russian Foundation for Basic Research (project no. № 20-516-00012).</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">Urban, L. Assessing the effects of water deficit on photosynthesis using parameters derived from measurements of leaf gas exchange and of chlorophyll a fluorescence / L. Urban, J. Aarrouf, L. Bidel // Front. Plant Sci. - 2017. - Vol. 8. - Art. 2068. https://doi.org/10.3389/fpls.2017.02068</mixed-citation><mixed-citation xml:lang="en">Urban L., Aarrouf J., Bidel L. Assessing the effects of water deficit on photosynthesis using parameters derived from measurements of leaf gas exchange and of chlorophyll a fluorescence. 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