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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">innosfera</journal-id><journal-title-group><journal-title xml:lang="ru">Наука и инновации</journal-title><trans-title-group xml:lang="en"><trans-title>Science and Innovations</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-9857</issn><issn pub-type="epub">2412-9372</issn><publisher><publisher-name>Издательский дом «Белорусская наука»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1818-9857-2022-5-67-72</article-id><article-id custom-type="elpub" pub-id-type="custom">innosfera-69</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>ДИССЕРТАЦИОННЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DISSERTATION RESEARCH</subject></subj-group></article-categories><title-group><article-title>LED освещение – эффективный инструмент регуляции морфогенеза растений</article-title><trans-title-group xml:lang="en"><trans-title>LED lighting as an effective tool for regulating plant morphogenesis</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>Куделина</surname><given-names>Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudelina</surname><given-names>T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Куделина, научный сотрудник </p></bio><bio xml:lang="en"><p>Tatiana Kudelina</p></bio><email xlink:type="simple">10tan10@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>Молчан</surname><given-names>О.</given-names></name><name name-style="western" xml:lang="en"><surname>Molchan</surname><given-names>O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Молчан, заведующая лабораторией водного обмена и фотосинтеза растений, кандидат биологических наук, доцент</p></bio><bio xml:lang="en"><p>Olga Molchan</p></bio><email xlink:type="simple">olga_molchan@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Институт экспериментальной ботаники НАН Беларуси</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>03</day><month>06</month><year>2022</year></pub-date><volume>0</volume><issue>5</issue><fpage>67</fpage><lpage>72</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Издательский дом «Белорусская наука», 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Издательский дом «Белорусская наука»</copyright-holder><copyright-holder xml:lang="en">Издательский дом «Белорусская наука»</copyright-holder><license xlink:href="https://innosfera.belnauka.by/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://innosfera.belnauka.by/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://innosfera.belnauka.by/jour/article/view/69">https://innosfera.belnauka.by/jour/article/view/69</self-uri><abstract><p>Приводятся результаты исследования влияния света с различным спектральным составом на морфогенез растений Arabidopsis thaliana (L.) Heynh. Дикого типа (Col 0), а также мутантов wei8-1tar1-1 и ahk2 c модифицированными процессами сигнальной трансдукции ауксинов и цитокининов. В работе применяли специально разработанную методику, упрощающую оценку влияния света на рост и развитие растений A. thaliana, особенно конфигурацию их корневой системы в течение всего вегетационного периода.</p></abstract><trans-abstract xml:lang="en"><p>The results of studying the effect of light with different spectral composition on the morphogenesis of wild-type of Arabidopsis thaliana (Col 0), as well as wei8-1tar1-1 and ahk2 mutants with modified signal transduction processes of auxins and cytokinins. We used a specially developed technique that simplifies the assessment of the effect of light on the growth and development of A. thaliana plants, especially the configuration of their root system during the entire growing season. Luminescent (LL) and light-emitting diode (LED) light sources were used, which made it possible to vary the physiologically significant blue (B), green (G), red (R), and far red (FR) spectral ranges. The R/B ratio was equal to 1 and 4 for LED 1 and LED 2 lighting options, respectively, at the same total flux density of B and R light photons. The ratios of R/FR and B/G in the spectra of LED illumination varied in the ranges closest to those observed in natural conditions. The most effective for the formation of the root system, rosette of leaves and inflorescences of A. thaliana (Col 0) was LED illumination with R/B = 4, B/G = 1 and R/FR = 6. The obtained data indicate an important role of AHK2 histidine kinase receptors in stimulation of the formation of vegetative organs of A. thaliana in response to an increase in the level of R and a decrease in B light (an increase in the R/B ratio) in complex spectral compositions. At the same time, LED lighting with a higher level of B and a low level of R light (R/B = 1, B/G = 2 and R/FR = 3) rather effectively stimulated the accumulation of the dry mass of the root system and the formation of inflorescences compared to fluorescent lighting. Stimulation of root growth by light of this spectral composition is probably mediated by a significant increase in the level of endogenous auxins. The decrease in the R/FR ratio in the spectrum of LED sources compared to the fluorescent lamp contributed to the stimulation of flowering of A. thaliana, regardless of the nature of the mutation and despite other differences in the spectral composition.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>A. thaliana</kwd><kwd>LED-освещение</kwd><kwd>спектральный состав</kwd><kwd>фотоморфозы</kwd><kwd>ауксин</kwd><kwd>цитокинин</kwd></kwd-group><kwd-group xml:lang="en"><kwd>A. thaliana</kwd><kwd>LED lighting</kwd><kwd>spectral composition</kwd><kwd>photomorphoses</kwd><kwd>auxin</kwd><kwd>cytokinin</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке грантов Белорусского республиканского фонда фундаментальных исследований Б19РМ‑065, Б21М‑097 и Российского фонда фундаментальных исследований Бел_мол_а 19–54–04015</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">LEDs Make It Resilient: Effects on Plant Growth and Defense Review / M. 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