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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">10.29235/1029-8940-2019-64-2-180-189</article-id><article-id custom-type="elpub" pub-id-type="custom">vestib-426</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>Накопление белка и экспрессия гена нитратредуктазы в клетках Spirulina platensis в зависимости от спектрального состава светодиодного излучения</article-title><trans-title-group xml:lang="en"><trans-title>Protein accumulation and expression of the nitrate reductase gene in Spirulina platensiscells depending on the spectral composition of led radiation</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>Козел</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozel</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Козел Николай Владимирович– канд. биол. наук, вед. науч. сотрудник.</p><p>ул. Академическая, 27, 220072, г. Минск.</p></bio><bio xml:lang="en"><p>Nikolai  V.  Kozel –  Ph.  D.  (Biol.),  Leading  researcher. </p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">kozel.mikalai@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>Радюк</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Radyuk</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Радюк Мечислав Степанович – канд. биол. наук, ст. науч. сотрудник.</p><p>ул. Академическая, 27, 220072, г. Минск.</p></bio><bio xml:lang="en"><p>Mechislav S. Radyuk – Ph. D. (Biol.), Senior researcher.</p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">radmes@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>Самович</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Samovich</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Самович Татьяна Викторовна – канд. биол. наук, науч. сотрудник.</p><p>ул. Академическая, 27, 220072, г. Минск.</p></bio><bio xml:lang="en"><p>Tatsiana  V.  Samovich –  Ph.  D.  (Biol.),  Researcher.</p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">samovich77@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>Дремук</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dremuk</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дремук Ирина Александровна – канд. биол. наук, науч. сотрудник.</p><p>ул. Академическая, 27, 220072, г. Минск.</p></bio><bio xml:lang="en"><p>Irina A. Dremuk – Ph. D. (Biol.), Researcher.</p><p>27, Akademicheskaya Str., 220072, Minsk.</p></bio><email xlink:type="simple">irinadremuk@yandex.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>Габриелян</surname><given-names>Л. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gabrielyan</surname><given-names>L. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Габриелян Лилит Сергеевна– канд. биол. наук, доцент.</p><p>ул. Алека Манукяна, 1, 0025, г. Ереван.</p></bio><bio xml:lang="en"><p>Lilit S. Gabrielyan – Ph. D. (Biol.), Assistant Professor.</p><p>1 Alex Manukyan St, Yerevan 0025.</p></bio><email xlink:type="simple">lgabrielyan@ysu.am</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>Ереванский государственный университет.</institution></aff><aff xml:lang="en"><institution>Yerevan State Universit.</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>17</day><month>05</month><year>2019</year></pub-date><volume>64</volume><issue>2</issue><fpage>180</fpage><lpage>189</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Козел Н.В., Радюк М.С., Самович Т.В., Дремук И.А., Габриелян Л.С., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Козел Н.В., Радюк М.С., Самович Т.В., Дремук И.А., Габриелян Л.С.</copyright-holder><copyright-holder xml:lang="en">Kozel N.V., Radyuk M.S., Samovich T.V., Dremuk I.A., Gabrielyan L.S.</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/426">https://vestibio.belnauka.by/jour/article/view/426</self-uri><abstract><p>Исследовано влияние светодиодного освещения разного спектрального состава на продуктивность Spirulina platensis, накопление в ее клетках белка и экспрессию гена нитратредуктазы. Показано, что при светодиодном освещении с преобладанием красной составляющей в спектре излучения продуктивность водоросли на 9–29 % больше, чем при освещении люминесцентной лампой. Использование одного синего света существенно (на 83 %) уменьшает продуктивность Spirulina platensis,что, по-видимому, обусловлено отсутствием в спектральном составе осветителя желтой и красной составляющих, которые наиболее эффективно поглощаются фикоцианином. Выявлена положительная корреляция между возрастанием продуктивности водоросли и накоплением в ее клетках белка. Так, при использовании осветителя с красными светодиодами содержание белка увеличилось на 21 % в расчете на 1 г сухого веса и на 47 % в расчете на 1 л суспензии по отношению к контролю. Анализ экспрессии гена Nar, кодирую-щего нитратредуктазу в клетках Spirulina platensis, не выявил прямой зависимости между накоплением белка и уровнем экспрессии гена Narв наиболее перспективном (в плане выхода биомассы и накопления белка) варианте с использованием красных светодиодов. Это указывает на определяющую роль фотосинтетической активности клеток Spirulina platensisв увеличении продуктивности и синтеза белка.</p></abstract><trans-abstract xml:lang="en"><p>The effect of LED lighting of different spectral composition on the productivity of Spirulina platensis, an accumulation of protein in alga cells and an expression of the nitrate reductase gene has been studied. It was shown that LED lighting with a predominance of the red component in the emission spectrum allows achieving 9–29 % higher alga productivity compared to using fluorescent lamp illumination. Illumination with single blue light resulted in significant (83 %) decrease in the productivity of Spirulina platensiswhich apparently was due to the absence of the yellow and red components in the illuminator spectral composition, which are most effectively absorbed by phycocyanin. A positive correlation between an increase in the productivity of alga and the accumulation of protein in its cells was found. So, by using an illuminator with red LEDs, the protein content increased by 21 % calculated per gram of dry weight and 47 % calculated per liter of suspension relative to the control. Analysis of the expression of the Nar gene encoding nitrate reductase in Spirulina platensiscells did not reveal a direct dependence between an increasing protein accumulation and an expression level of the Nar gene in the most promising in terms of biomass and protein yield sample of alga, growing under red LEDs. This indicates the crucial role of the photosynthetic activity of Spirulina platensiscells in increasing productivity and protein synthesis.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Spirulina platensis</kwd><kwd>сухой вес</kwd><kwd>белок</kwd><kwd>нитратредуктаза</kwd><kwd>фотосинтетически активный свет</kwd><kwd>спектральный состав</kwd><kwd>светодиоды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Spirulina platensis</kwd><kwd>dry weight</kwd><kwd>protein</kwd><kwd>nitrate reductase</kwd><kwd>photosynthetically active light</kwd><kwd>the spectral composition of the LEDs</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">Soni, R. A. Spirulina– from growth to nutritional product: a review / R. A. Soni, K. Sudhakar, R. S. Rana // Trends Food Sci. 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