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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">tinro</journal-id><journal-title-group><journal-title xml:lang="ru">Известия ТИНРО</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya TINRO</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1606-9919</issn><issn pub-type="epub">2658-5510</issn><publisher><publisher-name>ТИНРО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26428/1606-9919-2019-197-182-193</article-id><article-id custom-type="elpub" pub-id-type="custom">tinro-480</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>УСЛОВИЯ ОБИТАНИЯ ПРОМЫСЛОВЫХ ОБЪЕКТОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ENVIRONMENTS OF FISHERIES RESOURCES</subject></subj-group></article-categories><title-group><article-title>СОВМЕСТНОЕ ВЛИЯНИЕ КАДМИЯ И ПОНИЖЕННОЙ СОЛЕНОСТИ НА ДИНАМИКУ ЧИСЛЕННОСТИ И ФИЗИОЛОГИЧЕСКИЕ ПРОЦЕССЫ КРИПТОФИТОВОЙ ВОДОРОСЛИ PLAGIOSELMIS PROLONGA</article-title><trans-title-group xml:lang="en"><trans-title>COMBINED EFFECT OF CADMIUM AND LOWERED SALINITY ON DYNAMICS OF ABUNDANCE AND PHYSIOLOGICAL PROCESSES FOR ALGA PLAGIOSELMIS PROLONGA</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>Маркина</surname><given-names>Ж. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Markina</surname><given-names>Zh. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Маркина Жанна Васильевна, кандидат биологических наук, научный сотрудник.</p></bio><bio xml:lang="en"><p>Markina Zhanna V., Ph.D., researcher.</p></bio><email xlink:type="simple">zhannav@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>Айздайчер</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aizdaicher</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айздайчер Нина Александровна, кандидат биологических наук, доцент, старший научный сотрудник.</p></bio><bio xml:lang="en"><p>Aizdaicher Nina A., Ph.D., assistant professor, senior researcher.</p></bio><email xlink:type="simple">aizdaicher@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Национальный научный центр морской биологии им. А.В. Жирмунского ДВО РАН; Дальневосточный государственный федеральный университет</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><institution>Национальный научный центр морской биологии им. А.В. Жирмунского ДВО РАН</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2019</year></pub-date><volume>197</volume><issue>2</issue><fpage>182</fpage><lpage>193</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Маркина Ж.В., Айздайчер Н.А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Маркина Ж.В., Айздайчер Н.А.</copyright-holder><copyright-holder xml:lang="en">Markina Z.V., Aizdaicher N.A.</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://izvestiya.tinro-center.ru/jour/article/view/480">https://izvestiya.tinro-center.ru/jour/article/view/480</self-uri><abstract><p>Изучено совместное влияние кадмия в концентрациях 10, 30 и 50 мкг/л и солености 32, 24 и 16 ‰ на морскую одноклеточную водоросль Plagioselmis prolonga (Cryptophyta). Оцениваемыми показателями являлись: динамика численности популяции, размер клеток, относительный показатель внутренней структуры клеток — боковое светорассеяние клеток, флуоресценция фотосинтетических пигментов (хлорофилла a, фикоэритрина и аллофикоцианина), отражающая функционирование фотосинтетического аппарата, и содержание активных форм кислорода (АФК), приводящих к разрушению мембран клеток. Установлено, что в полносоленой морской воде (32 ‰) присутствие кадмия в среде в концентрации 10 мкг/л не влияло на динамику роста и физиологические показатели водоросли. Добавка 30 и 50 мкг/л кадмия в среду стимулировала рост численности клеток, содержание АФК возрастало при 50 мкг/л; остальные показатели не изменялись. Размер клеток увеличивался. Понижение солености до 24 ‰ приводило к интенсивному росту численности клеток на всем протяжении опыта, возрастанию АФК на третьи сутки и снижению этого показателя на седьмые. Боковое светорассеяние и флуоресценция хлорофилла а не изменялись по сравнению с контролем, флуоресценция фикоэритрина и аллофикоцианина уменьшалась. Клетки становились крупнее. Показано, что совместное действие кадмия во всех концентрациях при солености 16 ‰ приводило к ингибированию роста популяции и уменьшению показателей бокового светорассеяния и флуоресценции фотосинтетических пигментов P. prolonga, кроме АФК и размера клеток, показатели которых возрастали. Выявлено, что кадмий при солености 32 ‰ стимулирует рост водоросли и не оказывает влияние на фотосинтетический аппарат клеток, а при понижении солености до 16 ‰ оказывает угнетающее действие как на рост, так и на фотосинтетический аппарат клетки. При всех концентрациях кадмия и всех соленостных режимах содержание активных форм кислорода возрастало, размер клеток также увеличивался.</p></abstract><trans-abstract xml:lang="en"><p>Combined effect of cadmium (10, 30, and 50 mg/L) and salinity (32, 24, and 16 ‰) on marine unicellular alga Plagioselmis prolonga (Cryptophyta) is investigated. Such parameters as the cells number dynamics, their size, side scattering (as a characteristic of internal structure of cells), photosynthetic pigments fluorescence (chlorophyll a, phycoerythrin, allophycocyanin, as a measure of the photosynthetic apparatus function), and reactive oxygen species (ROS) content (as an index of the cellular membranes destruction) were registered in experiments using the flow cytometer CytoFLEX (Beckman Coulter). Addition of cadmium in concentration of 10 mg/L to the water with salinity 32 ‰ did not influence on alga growth and its physiological parameters. The higher concentrations of cadmium, as 30 and 50 mg/L, stimulated the cells growth and ROS increased under the concentration of 50 mg/L, but other parameters did not altered. The same contamination with cadmium under salinity 24 ‰ caused the cells size rising and their intensive growth, ROS increasing on 3rd day and decreasing on 7th day of exposition, and phycoerythrin and allophycocyanin fluorescence diminishing, but the side scattering and chlorophyll a fluorescence still did not differ from the control. Any concentration of cadmium in the water with salinity 16 ‰ caused the population growth inhibition, decreasing of side scattering and all photosynthetic pigments fluorescence, and increasing of ROS and cells size. There is concluded that cadmium contamination in conditions of normal (32 ‰) salinity has a stimulation effect on Plagioselmis prolonga growth and no effect on its photosynthetic apparatus, but the same contamination in conditions of lowered salinity has a negative effect on both its growth and photosynthetic functions, whereas the reactive oxygen species content increases and the cells become larger under the cadmium contamination regardless the salinity factor.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кадмий</kwd><kwd>соленость</kwd><kwd>криптофитовые водоросли Plagioselmis prоlonga</kwd><kwd>численность клеток</kwd><kwd>флуоресценция фотосинтетических пигментов</kwd><kwd>активные формы кислорода</kwd><kwd>проточная цитометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cadmium</kwd><kwd>salinity</kwd><kwd>Cryptophyta</kwd><kwd>Plagioselmis prolonga</kwd><kwd>cells number</kwd><kwd>fluorescence</kwd><kwd>photosynthetic pigment</kwd><kwd>reactive oxygen species</kwd><kwd>flow cytometry</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ботаника: курс альгологии и микологии : учеб. / под ред. 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