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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">agronauka</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука Евро-Северо-Востока</journal-title><trans-title-group xml:lang="en"><trans-title>Agricultural Science Euro-North-East</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-9081</issn><issn pub-type="epub">2500-1396</issn><publisher><publisher-name>FARC North-East</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30766/2072-9081.2025.26.2.295-305</article-id><article-id custom-type="elpub" pub-id-type="custom">agronauka-1991</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 СТАТЬИ: РАСТЕНИЕВОДСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ОRIGINAL SCIENTIFIC ARTICLES: PLANT GROWING</subject></subj-group></article-categories><title-group><article-title>Изучение влияния NaCl на межвидовые гибриды Populus L. в условиях in vitro</article-title><trans-title-group xml:lang="en"><trans-title>In vitro study of the effect of NaCl on interspecific Populus L. hybrids</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9116-6062</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Терещенко</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tereshchenko</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Терещенко Татьяна Васильевна, младший научный сотрудник лаборатории биотехнологий</p><p>пр-кт Университетский, 97, г. Волгоград 400062</p></bio><bio xml:lang="en"><p>Tatyana V. Tereshchenko, junior researcher, the Laboratory of Biotechnologies</p><p>Universitetsky Avenue, 97, Volgograd, 400062</p></bio><email xlink:type="simple">info@vfanc.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/0000-0002-1594-4181</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жолобова</surname><given-names>О. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Zholobova</surname><given-names>O. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жолобова Ольга Олеговна, кандидат биол. наук, ведущий научный сотрудник, заведующая лабораторией биотехнологий</p><p>пр-кт Университетский, 97, г. Волгоград 400062</p></bio><bio xml:lang="en"><p>Olga  Zholobova, PhD in Biology, leading researcher, Head of the Laboratory of Biotechnologies</p><p>Universitetsky Avenue, 97, Volgograd, 400062</p></bio><email xlink:type="simple">info@vfanc.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/0000-0001-8421-4767</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Могилевская</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mogilevskaya</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Могилевская Ирина Владимировна, кандидат биол. наук, доцент, ведущий научный сотрудник лаборатории биотехнологий</p><p>пр-кт Университетский, 97, г. Волгоград 400062</p></bio><bio xml:lang="en"><p>Irina V. Mogilevskaya, PhD in Biology, associate professor, leading researcher, the Laboratory of Biotechnologies</p><p>Universitetsky Avenue, 97, Volgograd, 400062</p></bio><email xlink:type="simple">mogilevskaya-i@vfanc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБГНУ «Федеральный научный центр агроэкологии, комплексных мелиораций и защитного лесоразведения Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific Centre for Agroecology, Complex Melioration and Protective Afforestation 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>25</day><month>04</month><year>2025</year></pub-date><volume>26</volume><issue>2</issue><elocation-id>295–305</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Терещенко Т.В., Жолобова О.О., Могилевская И.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Терещенко Т.В., Жолобова О.О., Могилевская И.В.</copyright-holder><copyright-holder xml:lang="en">Tereshchenko T.V., Zholobova O.O., Mogilevskaya I.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://www.agronauka-sv.ru/jour/article/view/1991">https://www.agronauka-sv.ru/jour/article/view/1991</self-uri><abstract><p>В условиях аридизации климата и опустынивания территорий, приводящих к вторичному засолению почв,  все больше земель подвергается преждевременной деградации и дальнейшему выводу их из сельскохозяйственного использования. Моделирование стресс-факторов в культуре in vitro для отбора толерантных линий солеустойчивых генотипов древесных видов cпособствует ускорению селекционного процесса. В исследовании изучено влияние NaCl на морфогенез растений-регенерантов межвидовых гибридов F1 тополя (Populus L.) и проведен отбор потенциально солеустойчивых генотипов в условиях in vitro. После проведения контролируемого скрещивания отобранных родительских линий с хозяйственно полезными признаками (Populus deltoides × P. alba; P. nigra f. piramidalis × P. alba; P. deltoides × P. bolleana f. piramidalis) методом изолированных зародышей получены и размножены асептические экспланты межвидовых гибридов в культуре in vitro. На селективных средах с NaCl в концентрациях 0,2; 0,5; 1,0 % протестировано 16 генотипов по 10 клонов в трех повторностях. Определены доля выживших и регенерирующих эксплантов, частота ризогенеза  и процент хлороза среди исследуемых образцов, количество и длина побегов, количество узлов, коэффициент размножения. Ингибирующее действие солевого стресса проявлялось в торможении морфогенеза – отсутствие процессов ризогенеза, хлороза, частичная деформация и некротизация листовых пластин. Доза 0,5 % NaCl была определена сублетальной, 1 % – летальной. Среди 16 исследуемых генотипов 4 имели высокий процент выживших эксплантов (96,2– 96,7 %), два из которых сохраняли высокую регенерацию (82,6–96,6 %) на сублетальной концентрации селективного агента. Полученные результаты свидетельствуют о том, что тестирование в условиях in vitro на устойчивость к NaCl является перспективным инструментом для ускорения селекционного процесса и отбора потенциально толерантных к абиотическому стресс-фактору генотипов для дальнейших полевых испытаний.</p></abstract><trans-abstract xml:lang="en"><p>In conditions of climate aridisation and desertification of territories leading to secondary soil salinisation, more and more lands are subjected to premature degradation and their further withdrawal from agricultural use. In vitro modelling of stress factors for selection of tolerant lines of salt-tolerant genotypes of tree species helps to accelerate the breeding process. In the study, the effect of NaCl on morphogenesis of regenerant plants of poplar F1 interspecific hybrids (Populus L.) was investigated, and in vitro selection of potentially co-tolerant genotypes was carried out. After controlled crossing of selected parental lines with economically useful traits (Populus deltoides × P. alba; P. nigra f. piramidalis × P. alba; P. deltoides × P. bolleana f. piramidalis) by the method of isolated embryos, aseptic explants of interspecific hybrids were obtained and micropropagated. Sixteen genotypes of 10 clones each were tested on selective media with NaCl at concentrations of 0.2; 0.5;1.0 % in three replicates. The ratio of surviving and regenerating explants, the frequency of rhizogenesis and the percentage of chlorosis among the tested accessions, as well as shoot length and number, multiplication factor and number of nodes were determined.  The inhibitory effect of salt stress was manifested in the inhibition of morphogenesis, including the absence of rhizogenesis processes, chlorosis, partial deformation and necrosis of leaf plates. A dose of 0.5 % NaCl was determined to be sublethal and 1 % was lethal. Among the sixteen genotypes tested, 4 genotypes had high % of surviving explants (96.2–96.7 %), two of which maintained high % regeneration (82.6–96.6 %) at sublethal concentration of selective agent. These results suggest that in vitro testing for NaCl tolerance is a promising tool for accelerating the breeding process and selecting potentially tolerant genotypes to the abiotic stress factor for further field trials.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>солеустойчивость</kwd><kwd>селекция</kwd><kwd>культура тканей</kwd><kwd>тополь</kwd><kwd>сублетальная концентрация</kwd><kwd>регенеранты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>salt resistance</kwd><kwd>breeding</kwd><kwd>tissue culture</kwd><kwd>poplar</kwd><kwd>sublethal concentration</kwd><kwd>regenerants</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">работа выполнена при поддержке Минобрнауки РФ в рамках Государственного задания ФБГНУ  «Федеральный научный центр агроэкологии, комплексных мелиораций и защитного лесоразведения Российской академии наук» (тема № FNFE-2025-0010, рег. № 125021402244-3).  Авторы благодарят сотрудников лаборатории селекции, семеноводства и питомниководства ФГБНУ «Федеральный научный центр агроэкологии, комплексных мелиораций и защитного лесоразведения Российской академии наук» за исходный селекционный материал.  Авторы благодарят рецензентов за их вклад в экспертную оценку этой работы.</funding-statement><funding-statement xml:lang="en">the research was carried out under the support of the Ministry of Science and Higher Education of the Russian Federation within the state assignment of the Federal Scientific Centre for Agroecology, Complex Melioration and Protective Afforestation of the Russian Academy of Sciences (theme No. FNFE-2025-0010, no. 125021402244-3).  The authors thank the staff of the Laboratory of Breeding, Seed Production and Nursery of the Federal Scientific Center for Agroecology of the Russian Academy of Sciences (Russian Federation) for the initial breeding material.  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