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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Agronomy and Animal Industries</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Agronomy and Animal Industries</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Агрономия и животноводство</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-797X</issn><issn publication-format="electronic">2312-7988</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">19525</article-id><article-id pub-id-type="doi">10.22363/2312-797X-2019-14-4-390-402</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Genetics and plant breeding</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Генетика и селекция растений</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Quantitative determination of trypsin inhibitor as a breeding marker in maize varieties with different resistance to fungal diseases</article-title><trans-title-group xml:lang="ru"><trans-title>Определение количества ингибитора трипсина как маркера селекции сортов кукурузы с различной устойчивостью к грибковым заболеваниям</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shekhvatova</surname><given-names>Galina Vladimirovna</given-names></name><name xml:lang="ru"><surname>Шехватова</surname><given-names>Галина Владимировна</given-names></name></name-alternatives><bio xml:lang="en"><p>Senior Researcher</p></bio><bio xml:lang="ru"><p>старший научный сотрудник</p></bio><email>shgal06@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ashin</surname><given-names>Viktor Vasilievich</given-names></name><name xml:lang="ru"><surname>Ашин</surname><given-names>Виктор Васильевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Biological sciences, Junior Researcher, Laboratory of Adaptation of Microorganisms</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, младший научный сотрудник лаборатории адаптации микроорганизмов</p></bio><email>shgal06@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sotchenko</surname><given-names>Elena Fedorovna</given-names></name><name xml:lang="ru"><surname>Сотченко</surname><given-names>Елена Федоровна</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Biological sciences, leading researcher, Department of Selection for immunity</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, ведущий научный сотрудник отдела селекции на иммунитет</p></bio><email>shgal06@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Scientific Research Production Company Gamma</institution></aff><aff><institution xml:lang="ru">Научно-производственная фирма «Гамма»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Skryabin Institute of Biochemistry and Physiology of Microorganisms RAS</institution></aff><aff><institution xml:lang="ru">Институт биохимии и физиологии микроорганизмов им. Г.К. Скрябина РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Russian Research Institute of Maize</institution></aff><aff><institution xml:lang="ru">Всероссийский научно-исследовательский институт кукурузы</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2019</year></pub-date><volume>14</volume><issue>4</issue><issue-title xml:lang="en">VOL 14, NO4 (2019)</issue-title><issue-title xml:lang="ru">ТОМ 14, №4 (2019)</issue-title><fpage>390</fpage><lpage>402</lpage><history><date date-type="received" iso-8601-date="2019-12-29"><day>29</day><month>12</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Shekhvatova G.V., Ashin V.V., Sotchenko E.F.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Шехватова Г.В., Ашин В.В., Сотченко Е.Ф.</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Shekhvatova G.V., Ashin V.V., Sotchenko E.F.</copyright-holder><copyright-holder xml:lang="ru">Шехватова Г.В., Ашин В.В., Сотченко Е.Ф.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://agrojournal.rudn.ru/agronomy/article/view/19525">https://agrojournal.rudn.ru/agronomy/article/view/19525</self-uri><abstract xml:lang="en"><p>Determination of plant resistance to fungal pathogens is an important breeding component. Thus, the study of protein profiles from corn kernels (13 genotypes) revealed a constitutively pronounced 14 kDa protein, trypsin inhibitor (TI), which is present at a relatively high level of concentration in seven Aspergíllus flavus - resistant maize lines, but at low concentrations or is absent in six sensitive lines. The 14 kDa trypsin inhibitor (TI) also showed antifungal activity against other mycotoxicogenic species. In this regard, the task was to determine the content of TI in varieties of maize with known properties, resistance, or sensitivity to such fungal pathogens of maize as head smut, common smut, and Fusarium stalk rot. According to the data obtained, the content of TI varies in different varieties and can vary by 4 times. However, in disease-resistant varieties its content is increased, which may be the primary marker of resistance of the variety to fungal pathogens.</p></abstract><trans-abstract xml:lang="ru"><p>Устойчивость растений к патогенным грибам является важной селекционной составляющей. Механизмы устойчивости очень разнообразны и могут включать в себя взаимодействия ферментов и их ингибиторов. В связи с этим проведено сравнение содержания ингибитора трипсина (ИТ), как возможного маркера селекции, в зрелых зернах сортов кукурузы с известной устойчивостью к пыльной головне, пузырчатой головне и стеблевой гнили. В качестве изучаемых объектов взяты 6 устойчивых и 12 чувствительных сортов. Для гарантированного извлечения из экстрактов молотых зерен кукурузы только ИТ применялась колоночная аффинная хроматография на трипсин-агарозе в аналитическом варианте. В результате выяснилось, что содержание ИТ варьирует внутри обеих групп сортов кукурузы: в устойчивой группе - максимум 347 и минимум 162 мкг/г, в чувствительной группе - максимум 200 и минимум 84 мкг/г. Соотношения максимумов к минимумам (2,3) одинаковы в обеих группах, но максимальное и минимальное содержание почти в два раза выше в группе устойчивых сортов кукурузы. В среднем в устойчивых сортах кукурузы содержание ИТ выше в 1,7 раза. Полученные данные подтверждают возможность использования содержащегося в кукурузных зернах ИТ в качестве маркера при выведении новых сортов кукурузы, устойчивых к пыльной головне, пузырчатой головне и стеблевой гнили.</p></trans-abstract><kwd-group xml:lang="en"><kwd>maize</kwd><kwd>trypsin inhibitor</kwd><kwd>trypsin-agarose</kwd><kwd>fungal pathogens</kwd><kwd>head smut</kwd><kwd>common smut</kwd><kwd>Fusarium stalk rot</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>кукуруза</kwd><kwd>ингибитор трипсина</kwd><kwd>трипсин-агароза</kwd><kwd>грибковые патогены</kwd><kwd>пыльная головня</kwd><kwd>пузырчатая головня</kwd><kwd>стеблевые гнили</kwd></kwd-group><funding-group><award-group><award-id></award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Chen ZY, Brown RL, Lax AR, Guo BZ, Cleveland TE, Russin JS. 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