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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">vuzbiochemi</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Прикладная химия и биотехнология</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Universities. Applied Chemistry and Biotechnology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-2925</issn><issn pub-type="epub">2500-1558</issn><publisher><publisher-name>ИРНИТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/2227-2925-2019-9-4-712-721</article-id><article-id custom-type="elpub" pub-id-type="custom">vuzbiochemi-265</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>ФИЗИКО-ХИМИЧЕСКАЯ БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICOCHEMICAL BIOLOGY</subject></subj-group></article-categories><title-group><article-title>Клональное микроразмножение и сохранение в условиях in vitro двух сортов хурмы восточной (Diospyros kaki thunb.)</article-title><trans-title-group xml:lang="en"><trans-title>In vitro cloned micropropagation and conservation for two cultivars of Diospyros kaki (Diospyros kaki Thunb.)</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>Митрофанова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mitrofanova</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Митрофанова Ирина Вячеславовна, д.б.н., главный научный сотрудник, заведующая отделом биологии развития растений, биотехнологии и биобезопасности</p><p>298648, г. Ялта, ул. Никитский спуск, 52, Республика Крым</p></bio><bio xml:lang="en"><p>Irina V. Mitrofanova, Dr. Sci. (Biology), Chief Researcher, Head of Plant Developmental Biology, Biotechnology and Biosafety Department</p><p>52, Nikitskiy spusk, Yalta 298648, The Republic of the Crimea</p></bio><email xlink:type="simple">irimitrofanova@yandex.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>Иванова</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванова Наталия Николаевна, к.б.н., старший научный сотрудник лаборатории биотехнологии и вирусологиии растений</p><p>298648, г. Ялта, ул. Никитский спуск, 52, Республика Крым</p></bio><bio xml:lang="en"><p>Natalya N. Ivanova, Cand. Sci. (Biology), Senior Researcher, Plant Biotechnology and Virology Laboratory</p><p>52, Nikitskiy spusk, Yalta 298648, The Republic of the Crimea</p></bio><email xlink:type="simple">nnivanova2017@yandex.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>Кузьмина</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzmina</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кузьмина Татьяна Николаевна, к.б.н., старший научный сотрудник лаборатории биохимии, физиологии и репродуктивной биологии растений</p><p>298648, г. Ялта, ул. Никитский спуск, 52, Республика Крым</p></bio><bio xml:lang="en"><p>Tatyana N. Kuzmina, Cand. Sci. (Biology), Senior Researcher, Plant Biochemistry, Physiology and Reproductive Biology Laboratory</p><p>52, Nikitskiy spusk, Yalta 298648, The Republic of the Crimea</p></bio><email xlink:type="simple">tnkuzmina@rambler.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>Хохлов</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Khokhlov</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хохлов Сергей Юрьевич, к.с.-х.н., заведующий лабораторией южных плодовых и орехоплодных культур</p><p>298648, г. Ялта, ул. Никитский спуск, 52, Республика Крым</p></bio><bio xml:lang="en"><p>Sergey Yu. Khokhlov, Cand. Sci. (Agriculture), Head of South Fruit and Nut Cultures</p><p>52, Nikitskiy spusk, Yalta 298648, The Republic of the Crimea</p></bio><email xlink:type="simple">ocean-10@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ордена Трудового Красного Знамени Никитский ботанический cад – Национальный научный центр РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>The Labor Red Banner Order Nikitsky Botanical Gardens – National Scientific Center of the RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>05</day><month>01</month><year>2020</year></pub-date><volume>9</volume><issue>4</issue><fpage>712</fpage><lpage>721</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Митрофанова И.В., Иванова Н.Н., Кузьмина Т.Н., Хохлов С.Ю., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Митрофанова И.В., Иванова Н.Н., Кузьмина Т.Н., Хохлов С.Ю.</copyright-holder><copyright-holder xml:lang="en">Mitrofanova I.V., Ivanova N.N., Kuzmina T.N., Khokhlov S.Y.</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://vuzbiochemi.elpub.ru/jour/article/view/265">https://vuzbiochemi.elpub.ru/jour/article/view/265</self-uri><abstract><p>Цель исследования – усовершенствование способа регенерации микропобегов хурмы восточной сортов Сувенир Осени и Южная Красавица селекции Никитского ботанического сада и оптимизация условий для беспересадочного 12-месячного депонирования хурмы восточной в условиях in vitro с целью дальнейшего создания генобанка ценных субтропических сельскохозяйственных культур. Исследования по введению эксплантов в культуру in vitro и регенерации микропобегов хурмы проводили в лаборатории биотехнологии и вирусологии растений ФГБУН Ордена Трудового Красного Знамени «Никитский ботанический сад» – Национальный научный центр РАН. Для регенерации микропобегов использовали среду Мурасиге и Скуга (МС) с регуляторами роста – 6-бензилапинопурин (БАП) и 3-(1,2,3-тиадиазолин-5)-1-фенилмочевина (ТДЗ). Для сохранения in vitro сегменты микропобегов помещали на питательную среду ¼ нормы МС, дополненную сахарозой и хлорхолинхлоридом (ССС). Культуральные сосуды помещали в холодильные камеры с низкой положительной температурой (4–14 °С). В ходе экспериментов установлена индуцирующая роль БАП (2–4 мг/л) в питательной среде МС на этапе индукции побегообразования, что обеспечивало стабильную прямую регенерацию микропобегов из вегетативных почек хурмы восточной. Максимальное число нормальных микропобегов без видимых изменений получено на среде МС, дополненной 4 мг/л БАП: 2,0±0,4 шт. – у сорта Сувенир Осени, 2,7±0,4 шт. – у сорта Южная Красавица. Средняя длина микропобегов достигала 1,90±0,04 см для сорта Сувенир Осени и 3,1±0,07 см – для сорта Южная Красавица. Наличие в среде МС ТДЗ способствовало формированию микропобегов путем непрямого органогенеза в культуре высечек листа исследуемых сортов. Частота побегообразования из высечек листа достигала 65–79 % через 6 недель культивирования на средах с 1,1 и 1,7 мг/л ТДЗ. Различия морфогенетического потенциала эксплантов прослеживались на протяжении всех этапов развития. Данные гистологических исследований каллуса подтверждают наличие пролиферативно активных клеток, которые дают начало меристемам микропобегов. Показана стабилизирующая роль 60,0 г/л сахарозы и 0,2–0,4 г/л ССС в среде ¼ МС при температуре сохранения 8–10 °С на жизнеспособность эксплантов хурмы в течение 12 месяцев.</p><p>Авторы заявляют об отсутствии конфликта интересов.</p></abstract><trans-abstract xml:lang="en"><p>The study is aimed at improving the microsprout regeneration method for the 'Suvenir Oseni' and 'Yuzhnaya Krasavitsa' Diospyros kaki (persimmon) cultivars of the Nikitsky Botanical Gardens. The breeding of and optimising the conditions for non-stop 12-month in vitro deposition of kaki persimmon was carried out for the purpose of creating a gene bank of valuable subtropical crops. The explanting of in vitro culture and the regeneration of persimmon microsprouts was carried out in the laboratory of plant biotechnology and virology of the "Nikitsky Botanical Gardens" National Scientific Centre RAS. For regeneration of microsprouts, Murashige and Skoog medium (MSO) containing 6-benzylapinopurin (BAP) and 3-(1,2,3-Thiadiazolin-5)- 1-phenylurea (TDZ) growth regulators was used. In order to ensure in vitro preservation, microsprout segments were placed in a nutrient medium composed by ¼ of normal MS, sucrose and chlorocholinchloride (CCC). The culture vessels were placed in refrigerators to maintain a low positive temperature (4–14 °С). In the course of the experiments, the inducing role of BAP (2–4 mg/L) in the MS nutrient medium at the induction stage of spout formation was established to ensure stable direct regeneration of microsprouts from the vegetative burgeons of kaki persimmon. The maximum number of normal microsprouts having no visible changes was obtained in MS medium having a BAP concentration of 4 mg/L and equal to 2.0±0.4 and 2.7±0.4 pcs. for the 'Suvenir Oseni' and 'Yuzhnaya Krasavitsa' cultivars, respectively. The average length of microsprouts reached 1.90±0.04 cm for the 'Suvenir Oseni' cultivar, while, for 'Yuzhnaya Krasavitsa', this value was equal to 3.1±0.07 cm. The presence of TDZ in the MS medium facilitated the formation of microsprouts through indirect organogenesis in the leaf cutting culture of the studied cultivars. The frequency of spout formation from leaf cuttings reached 65–79 % following 6 weeks of cultivation on media with 1.1 and 1.7 mg/L concentration of TDZ. Differences in the morphogenetic potential of explants were traced throughout all stages of development. Data from histological callus studies confirm the presence of proliferatively active cells giving rise to microsprout meristems. The concentration of 60.0 g/L and 0.2–0.4 g/L for sucrose and CCC, respectively, contained in ¼ MS medium was shown to stabilise the viability of persimmon explants at a storage temperature of 8–10 °С for 12 months.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Diospyros kaki</kwd><kwd>микроразмножение</kwd><kwd>in vitro</kwd><kwd>органогенез</kwd><kwd>депонирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Diospyros kaki</kwd><kwd>micropropagation</kwd><kwd>in vitro</kwd><kwd>organogenesis</kwd><kwd>deposition</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа была выполнена в рамках Госзадания № 0829-2019-0038 ФГБУН «Никитский ботанический cад – Национальный научный центр РАН».</funding-statement><funding-statement xml:lang="en">The study was carried out as a part of the State assignment no. 0829-2019-0038 for Nikitsky Botanical Gardens – National Scientific Center of the RAS.</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">Хохлов С.Ю. 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