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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</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">10.29235/1561-8323-2019-63-3-317-324</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-618</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>БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOLOGY</subject></subj-group></article-categories><title-group><article-title>Влияние экзогенного β-1,3-глюкана на величину pH апопласта и цитоплазмы в тканях здоровых и инфицированных Bipolaris sorociniana (Sacc.) Shoem. проростках ячменя (Hordeum vulgare L.)</article-title><trans-title-group xml:lang="en"><trans-title>Influence of exogenous β-1,3-glucane on the pH level of apoplast and cytoplasm in healthy and Bipolaris sorokiniana (Sacc.) Shoem. seedlings of barley (Hordeum vulgare L.)-infected tissues</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>Савченко</surname><given-names>Г. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Savchenko</surname><given-names>G. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савченко Галина Евсеевна – канд. биол. наук, доцент, ст. науч. сотрудник</p><p>ул. Академическая, 27, 220072, Минск, Республика Беларусь</p></bio><bio xml:lang="en"><p>Savchenko Galina Evseevna – Ph. D. (Biology), Associated professor, Senior researcher</p><p>27, Akademicheskaya Str., 220072, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">gesavchenko@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>Бачище</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Bachyshcha</surname><given-names>T. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бачище Татьяна Сергеевна – мл. науч. сотрудник</p><p>ул. Академическая, 27, 220072, Минск, Республика Беларусь</p></bio><bio xml:lang="en"><p>Bachyshcha Tatsiana Sergeevna – Junior researcher</p><p>27, Akademicheskaya Str., 220072, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">tatsiana.bachyshcha@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>Кабашникова</surname><given-names>Л. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Kabashnikova</surname><given-names>L. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кабашникова Людмила Федоровна – член-корреспондент, д-р биол. наук, доцент, заведующий лабораторией</p><p>ул. Академическая, 27, 220072, Минск, Республика Беларусь</p></bio><bio xml:lang="en"><p>Kabashnikova Liudmila Fedorovna – Corresponding Member, D. Sc. (Biology), Associated professor, Head for the Laboratory</p><p>27, Akademicheskaya Str., 220072, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">kabashnikova@ibp.org.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт биофизики и клеточной инженерии Национальной академии наук 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><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>27</day><month>06</month><year>2019</year></pub-date><volume>63</volume><issue>3</issue><fpage>317</fpage><lpage>324</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савченко Г.Е., Бачище Т.С., Кабашникова Л.Ф., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Савченко Г.Е., Бачище Т.С., Кабашникова Л.Ф.</copyright-holder><copyright-holder xml:lang="en">Savchenko G.E., Bachyshcha T.S., Kabashnikova L.F.</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://doklady.belnauka.by/jour/article/view/618">https://doklady.belnauka.by/jour/article/view/618</self-uri><abstract><p>С помощью рН-чувствительных зондов FITC-декстрана и пиранина исследовали механизмы действия β-1,3-глюкана из эвглены (Euglena gracilis) на уровне изменений рН вне и внутри клетки в тканях листа 7-дневных проростков ячменя in vivo. Установлено, что инкубация листьев ячменя, отделенных от корней, на растворе β-1,3-глюкана (0,01 %) в течение 40 мин не вызывала закисления цитоплазмы как типичного неспецифического ответа растения на раневой стресс. Инокуляция интактных проростков спорами гриба Bipolaris sorokiniana (Sacc.) Shoem. приводила к защелачиванию апопласта на 1,7 единиц рН, а предобработка проростков β-1,3-глюканом за сутки до грибного заражения способствовала его закислению на 1,04 единиц по сравнению с инфицированным вариантом, что свидетельствует об усилении работы АТФаз, выкачивающих протоны из цитоплазмы в апопласт. Проведенные исследования способствуют подбору оптимальных концентраций β-1,3-глюкана для иммуномодулирующих смесей.</p></abstract><trans-abstract xml:lang="en"><p>Еffects of β-1,3-glucan from euglena (Euglena gracilis) were studied in vivo by evaluating pH changes outside and inside the cell in the tissues of the 7-day leaves of barley seedlings with the use of pH-sensitive probes of FITC-dextran and pyranine. It was found that the incubation of barley leaves separated from the roots in the solution of β-1,3-glucan (0.01 %) for 40 min did not cause acidification of cytoplasm as a typical nonspecific plant response to wound stress. The inoculation of intact seedlings with Bipolaris sorokiniana (Sacc.) Shoem. spores resulted in alkalization of apoplast by 1.7 pH units, and pretreatment of seedlings with β-1,3-glucan a day before the fungal infection promoted its acidification (1.04 pH units) compared to the infected variant, indicating an increased performance of ATPase, which pumped protons from cytoplasm into apoplast. The conducted studies contribute to the selection of optimal concentrations of β-1,3-glucan for immunomodulatory mixtures.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>яровой ячмень</kwd><kwd>β-1</kwd><kwd>3-глюкан</kwd><kwd>рН апопласта</kwd><kwd>рН цитоплазмы</kwd><kwd>флуоресценция</kwd><kwd>FITC</kwd><kwd>пиранин</kwd><kwd>Hordeum vulgare L.</kwd><kwd>Bipolaris sorokiniana (Sacc.) Shoem</kwd></kwd-group><kwd-group xml:lang="en"><kwd>barley</kwd><kwd>β-1</kwd><kwd>3-glucane</kwd><kwd>pH of apoplast</kwd><kwd>pH of cytoplasm</kwd><kwd>fluorescence</kwd><kwd>FITC-dextran</kwd><kwd>pyranine</kwd><kwd>Hordeum vulgare L.</kwd><kwd>Bipolaris sorokiniana (Sacc.) 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