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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">vestnik-bio-msu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Московского университета. Серия 16. Биология</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Moskovskogo universiteta. Seriya 16. Biologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0137-0952</issn><publisher><publisher-name>Lomonosov Moscow State University,  School of Biology</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestnik-bio-msu-792</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>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Половое воспроизведение черноморской диатомовой водоросли Climaconeis scalaris (Brébisson) E.J. Cox</article-title><trans-title-group xml:lang="en"><trans-title>Sexual reproduction of the Black Sea diatom Climaconeis scalaris (Brébisson) E.J. Cox</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>Давидович</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Davidovich</surname><given-names>O. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Давидович Ольга Ивановна — кандидат биологических наук, старший научный сотрудник лаборатории водорослей и микробиоты.</p><p>Ул. Науки, д. 24, п. Курортное, Феодосия, 298188, тел.: 8-365-622-62-12</p></bio><bio xml:lang="en"><p>Science str. 24, Kurortnoe, Feodosia, 298188</p></bio><email xlink:type="simple">olivdav@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>Давидович</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Davidovich</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Давидович Николай Александрович — кандидат биологических наук, ведущий научный сотрудник лаборатории водорослей и микробиоты КНС им. Т.И. Вяземского.</p><p>Ул. Науки, д. 24, п. Курортное, Феодосия, 298188 Mickiewicza 16a, Szczecin, 70-383, Тел.: 8-365-622-62-12</p></bio><bio xml:lang="en"><p>Science str. 24, Kurortnoe, Feodosia, 298188; Mickiewicza 16a, Szczecin, 70-383</p></bio><email xlink:type="simple">karadag-algae@yandex.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>Гастиньо</surname><given-names>Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Gastineau</surname><given-names>R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гастиньо Роман — Ph.D., научный сотрудник научно-образовательного центра естественных наук и отдела палеоокеанологии, факультет геологических наук.</p><p>Mickiewicza 16a, Szczecin, 70-383, tel.: +48-91-444-1000</p></bio><bio xml:lang="en"><p>Gastineau Romain — Ph.D..</p><p>Mickiewicza 16a, Szczecin, 70-383, tel.: +48-91-444-1000</p><p> </p></bio><email xlink:type="simple">gastineauromain@yahoo.fr</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>Витковски</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Witkowski</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Витковски Анджей — профессор, заведующий палеоокеанологическим отделением факультета геологических наук.</p><p>Mickiewicza 16a, Szczecin, 70-383, tel.: +48-91-444-1000</p></bio><bio xml:lang="en"><p>Witkowski Andrzej</p><p>Mickiewicza 16a, Szczecin, 70-383, tel.: +48-91-444-1000</p><p> </p></bio><email xlink:type="simple">witkowsk@univ.szczecin.pl</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Карадагская научная станция имени Т.И. Вяземского — природный заповедник РАН, филиал Института биологии южный морей имени А.О. Ковалевского, РАН<country>Россия</country></aff><aff xml:lang="en">. Vyazemsky Karadag Scientific Station — natural reserve of the Russian Academy of Sciences, Branch of the A.O. Kovalevsky Institute of Biology of the Southern Seas, Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Карадагская научная станция имени Т.И. Вяземского — природный заповедник РАН, филиал Института биологии южный морей имени А.О. Ковалевского, РАН; Institute of Marine and Environmental Sciences, University of Szczecin<country>Россия</country></aff><aff xml:lang="en">T.I. Vyazemsky Karadag Scientific Station — natural reserve of the Russian Academy of Sciences, Branch of the A.O. Kovalevsky Institute of Biology of the Southern Seas, Russian Academy of Sciences; Institute of Marine and Environmental Sciences, University of Szczecin<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Institute of Marine and Environmental Sciences, University of Szczecin<country>Польша</country></aff><aff xml:lang="en">Institute of Marine and Environmental Sciences, University of Szczecin<country>Poland</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>12</day><month>12</month><year>2019</year></pub-date><volume>74</volume><issue>4</issue><fpage>254</fpage><lpage>261</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Давидович О.И., Давидович Н.А., Гастиньо Р., Витковски А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Давидович О.И., Давидович Н.А., Гастиньо Р., Витковски А.</copyright-holder><copyright-holder xml:lang="en">Davidovich O.I., Davidovich N.A., Gastineau R., Witkowski A.</copyright-holder><license 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://vestnik-bio-msu.elpub.ru/jour/article/view/792">https://vestnik-bio-msu.elpub.ru/jour/article/view/792</self-uri><abstract><p>В лабораторных условиях инициирован и исследован процесс полового воспроизведения черноморской диатомовой водоросли Climaconeis scalaris (Brebisson) E.J. Cox, 1982. Система скрещивания этого вида допускает гомо-и гетероталлическое воспроизведение. Половой процесс аллогамный. Во время активного скольжения друг относительно друга диплоидные материнские клетки-гаметангии выделяли слизь, образуя слизистую дорожку. Каждый гаме-тангий в паре продуцировал две вытянутые цилиндрические с закругленными краями гаплоидные гаметы, которые были в значительной степени морфологически и поведенчески изогамными. Деление протопласта гаметангиальной клетки происходило в трансапикальной плоскости без перегруппировки гамет. Растущие ауксоспоры располагались параллельно створкам родительских клеток. Получены данные об изменении размеров клеток, количества хлоропластов, а также положении кардинальных точек в жизненном цикле изучаемого вида.</p></abstract><trans-abstract xml:lang="en"><p>In laboratory conditions, the process of sexual reproduction of the Black Sea diatom Climaconeis scalaris (Brebisson) E.J. Cox, 1982 was initiated and studied. A crossing system of this species allows both homo- and heterotallic reproduction. The sexual process is allogamous. During active gliding of diploid mother gametangial cells relative to each other, mucilage was excreted, forming a mucilage track. Each gametangium in a pair produced two elongated cylindrical with rounded ends haploid gametes, which were largely morphologically and behaviorally isogamous. The division of the protoplast of the gametangial cell occurred in the transapical plane without rearrangement of gametes. Growing auxospores were located parallel to the parent frustules. Data on changes in the cell size, number of chloroplasts, as well as the position of cardinal points in the life cycle of the investigated species were obtained.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>диатомовые водоросли</kwd><kwd>Climaconeis scalaris</kwd><kwd>клоновые культуры</kwd><kwd>вегетативный рост</kwd><kwd>половое воспроизведение</kwd><kwd>ауксоспорообразование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>diatoms</kwd><kwd>Climaconeis scalaris</kwd><kwd>clonal cultures</kwd><kwd>vegetative growth</kwd><kwd>sexual reproduction</kwd><kwd>auxosporulation</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследования выполнены в рамках государственного задания по теме «Изучение фундаментальных физических, физиолого-биохимических, репродуктивных, популяционных и поведенческих характеристик морских гидробионтов», № госрегистрации АААА-А19-119012490045-0</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">Lobban C.S. 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