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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">vir-nw</journal-id><journal-title-group><journal-title xml:lang="ru">Труды по прикладной ботанике, генетике и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings on applied botany, genetics and breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-8834</issn><issn pub-type="epub">2619-0982</issn><publisher><publisher-name>N.I. Vavilov All-Russian Institute of Plant Genetic Resources</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30901/2227-8834-2023-3-207-213</article-id><article-id custom-type="elpub" pub-id-type="custom">vir-nw-1667</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>ИММУНИТЕТ КУЛЬТУРНЫХ РАСТЕНИЙ И ИХ ДИКИХ РОДИЧЕЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>IMMUNITY OF CULTIVATED PLANTS AND THEIR WILD RELATIVES</subject></subj-group></article-categories><title-group><article-title>Экспрессия гена фактора транскрипции  StTCP23  в растениях картофеля, инокулированных вироидом веретеновидности клубней</article-title><trans-title-group xml:lang="en"><trans-title>Expression of the transcription factor encoding gene  StTCP23  in potato plants infected with the tuber spindle viroid</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3383-2973</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мироненко</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mironenko</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нина Васильевна Мироненко, доктор биологических наук, ведущий научный сотрудник</p><p>196608 Санкт-Петербург, Пушкин, ш. Подбельского, 3</p></bio><bio xml:lang="en"><p>Nina V. Mironenko, Dr. Sci. (Biology), Leading Researcher</p><p>3 Podbelskogo Hwy., Pushkin, St. Petersburg 196608</p></bio><email xlink:type="simple">nina2601mir@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7657-6618</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орина</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Orina</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александра Станиславовна Орина, кандидат биологических наук, старший научный сотрудник</p><p>196608 Санкт-Петербург, Пушкин, ш. Подбельского, 3</p></bio><bio xml:lang="en"><p>Aleksandra S. Orina, Cand. Sci. (Biology), Senior Researcher</p><p>3 Podbelskogo Hwy., Pushkin, St. Petersburg 196608</p></bio><email xlink:type="simple">orina-alex@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1419-7134</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лашина</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Lashina</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нина Михайловна Лашина, кандидат биологических наук, старший научный сотрудник</p><p>196608 Санкт-Петербург, Пушкин, ш. Подбельского, 3</p></bio><bio xml:lang="en"><p>Nina M. Lashina, Cand. Sci. (Biology), Senior Researcher</p><p>3 Podbelskogo Hwy., Pushkin, St. Petersburg 196608</p></bio><email xlink:type="simple">nlashina@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7368-0797</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Афанасенко</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Afanasenko</surname><given-names>О. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Сильвестровна Афанасенко, доктор биологических наук, ведущий научный сотрудник</p><p>196608 Санкт-Петербург, Пушкин, ш. Подбельского, 3</p></bio><bio xml:lang="en"><p>Olga S. Afanasenko, Dr. Sci. (Biology), Leading Researcher</p><p>3 Podbelskogo Hwy., Pushkin, St. Petersburg 196608</p></bio><email xlink:type="simple">olga.s.afan@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт защиты растений</institution><country>Россия</country></aff><aff xml:lang="en"><institution>All-Russian Research Institute of Plant Protection</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>23</day><month>10</month><year>2023</year></pub-date><volume>184</volume><issue>3</issue><fpage>207</fpage><lpage>213</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мироненко Н.В., Орина А.С., Лашина Н.М., Афанасенко О.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Мироненко Н.В., Орина А.С., Лашина Н.М., Афанасенко О.С.</copyright-holder><copyright-holder xml:lang="en">Mironenko N.V., Orina A.S., Lashina N.M., Afanasenko О.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://elpub.vir.nw.ru/jour/article/view/1667">https://elpub.vir.nw.ru/jour/article/view/1667</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Вироид веретеновидности клубней картофеля PSTVd (potato spindle tuber viroid) – самый мелкий из всех известных возбудителей болезней картофеля – является кольцевой молекулой однонитевой РНК. Симптомы, вызываемые PSTVd, приводят к существенному снижению урожая клубней или гибели растения. Установлено, что вироидная инфекция запускает процесс «сайленсинга» генов хозяина и индуцирует симптомы болезни растения с помощью vd-sRNA. Одной из мишеней вироида является ген картофеля StTCP23, который кодирует фактор транскрипции. Целью исследования являлась оценка влияния инокуляции растений картофеля сорта ‘Colomba’ штаммом NicTr-3 вироида PSTVd на экспрессию гена StTCP23 в инфицированном растении.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Растения картофеля сорта ‘Colomba’ инокулировали соком из листьев растений томата сорта ‘Rutgers’, в котором поддерживали штамм NicTr-3 вироида PSTVd. Факт заражения подтверждали методом ОТ-ПЦР со специфичными праймерами. Разнообразие молекул в популяции вироида выявляли с помощью клонирования и последующего секвенирования клонов вироида. Экспрессию гена StTCP23 в инфицированных растениях картофеля оценивали методом количественной ПЦР относительно гена фактора элонгации ef1α.</p></sec><sec><title>Результаты</title><p>Результаты. Фенотипические проявления заражения сорта ‘Colomba’ штаммом NicTr-3 вироида PSTVd не выявлены, тогда как факт заражения подтвержден молекулярными методами. Установлено присутствие 10 мутаций в отдельных вариантах штамма NicTr-3, ответственных за снижение агрессивности штамма. Показано повышение экспрессии гена StTCP23 в листьях растений картофеля сорта ‘Colomba’, инокулированных штаммом NicTr-3, по сравнению с контролем.</p></sec><sec><title>Заключение</title><p>Заключение. Механизм взаимодействия вироида и гена StTCP23 в зараженном растении картофеля не является универсальным и зависит как от генотипа сорта картофеля, так и от штамма вироида. Для доказательства существования специфических механизмов взаимодействия генотипа сорта и генотипа штамма вироида необходимы дополнительные исследования.</p></sec></abstract><trans-abstract xml:lang="en"><p>Background The potato spindle tuber viroid (PSTVd) is the smallest of all known potato pathogens. PSTVd is a circular, single-stranded RNA molecule that does not code for proteins. Symptoms caused by PSTVd lead to a significant reduction in tuber yield or death of the plant. PSTVd infection triggers the silencing of host-plant genes and induces disease symptoms in the plant via vd-sRNA. The StTCP23 potato gene which encodes a transcription factor is one of the targets of PSTVd. The aim of the study was to assess the effect of inoculation of potato plants of cv. ‘Colomba’ with the PSTVd viroid NicTr-3 strain on the StTCP23 expression in infected plants.</p><sec><title>Materials and methods</title><p>Materials and methods. Potato plants of cv. ‘Colomba’ were inoculated with leaf sap of the tomato cv. ‘Rutgers’ in which the PSTVd viroid NicTr-3 strain was propagated. RT-PCR with specific primers was used to confirm the infection of potato plants with the viroid. Diversity of RNA molecules in the PSTVd population was revealed using RT, cloning, and sequencing of the viroid. The expression of the StTCP23 gene in infected potato plants was assessed by quantitative PCR with the ef1α gene as a reference.</p></sec><sec><title>Results</title><p>Results. Symptoms of infecting ‘Colomba’ plants with the PSTVd viroid strain NicTr-3 were not detected, while the presence of the viroid in potato leaves was confirmed by molecular methods. Ten mutations were found in individual variants of the PSTVd strain NicTr-3, responsible for reducing the viroid’s aggressiveness. An increase in the expression of StTCP23 was shown at 3 time points in ‘Colomba’ plants inoculated with the NicTr-3 strain compared to the control.</p></sec><sec><title>Conclusion</title><p>Conclusion. The mechanism of interaction between PSTVd and the StTCP23 gene in an infected potato plant is not universal and depends both on the potato genotype and viroid strain. Additional studies are required to prove the existence of specific interaction mechanisms between the host-plant and viroid strain genotypes.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>PSTVd</kwd><kwd>сорт ‘Colomba’</kwd><kwd>мутации вироида</kwd><kwd>патогенность</kwd><kwd>агрессивность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>PSTVd</kwd><kwd>cv. ‘Colomba’</kwd><kwd>viroid mutations</kwd><kwd>pathogenicity</kwd><kwd>aggressiveness</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке гранта РНФ № 20-46-07001 «Молекулярно-генетические механизмы взаимоотношений в патосистеме  &lt;i&gt;Solanum&lt;/i&gt;  spp. – вироид веретеновидности клубней картофеля (PSTVd) и особенности эпидемиологии вироида». Авторы выражают благодарность исполнительному директору СПССК « Устюженский картофель» (Вологодская об- ласть) А. А. Кузнецову за предоставленные для исследования клубни картофеля сорта ‘Colomba’. Авторы благодарят рецензентов за их вклад в экспертную оценку этой работы.</funding-statement><funding-statement xml:lang="en">Тhe research was supported by a grant from the Russian Science Foundation: No. 20-46-07001 “Molecular and genetic mechanisms of plant pathogen interaction in the pathosystem of &lt;i&gt;Solanum&lt;/i&gt;  spp. – the potato spindle tuber viroid and features of the viroid’s epidemiology on potato”. The authors express their gratitude to A. A. Kuznetsov, Executive Director of the Ustyuzhensky Potato Co-op, Vologda Province, for providing ‘Colomba’ potato tubers for the study. The authors thank the reviewers for their contribution to the peer review of this paper.</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">Adkar-Purushothama C.R., Perreault J.P. 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