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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">ivm</journal-id><journal-title-group><journal-title xml:lang="ru">Международный вестник ветеринарии</journal-title><trans-title-group xml:lang="en"><trans-title>International Journal of Veterinary Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-2419</issn><publisher><publisher-name>SpbGUVM Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52419/issn2072-2419.2025.3.84</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1792</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>ИНФЕКЦИОННЫЕ БОЛЕЗНИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFECTIOUS DISEASES</subject></subj-group></article-categories><title-group><article-title>К вопросу визуализации параспоральных тел и спор</article-title><trans-title-group xml:lang="en"><trans-title>On the issue of visualization of parasporal bodies and spores</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7611-3608</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хлопова</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khlopova</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотр. лаб. микробиологии сибирской язвы </p></bio><bio xml:lang="en"><p>Junior Researcher of the Laboratory of Anthrax microbiology </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4691-4719</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горшков-Кантакузен</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorshkov-Cantacuzene</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-бактериолог, ст. преп. каф. медицинской микробиологии им. акад. З.В. Ермольевой </p><p> </p></bio><bio xml:lang="en"><p>bacteriologist, Senior Lecturer of the Yermolyeva Department of medical microbiology </p></bio><email xlink:type="simple">cantacuzene.patent@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-3361-543X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чикина</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chikina</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>лаборант-исследователь лаб. микробиологии сибирской язвы </p></bio><bio xml:lang="en"><p>Laboratory Researcher of the Laboratory of Anthrax microbiology </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9501-1380</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тимофеев</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Timofeev</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, зам. директора по аналитической работе </p></bio><bio xml:lang="en"><p>PhD in Biology, Deputy Director for Analytical Work </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБУН «Государственный научный центр прикладной микробиологии и биотехнологии» Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Center of Applied Microbiology and Biotechnology of the Federal Service for the Oversight of Consumer Protection and Welfar</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» </institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>07</day><month>01</month><year>2026</year></pub-date><volume>0</volume><issue>3</issue><fpage>84</fpage><lpage>89</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Хлопова К.В., Горшков-Кантакузен В.А., Чикина Ю.В., Тимофеев В.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Хлопова К.В., Горшков-Кантакузен В.А., Чикина Ю.В., Тимофеев В.С.</copyright-holder><copyright-holder xml:lang="en">Khlopova K.V., Gorshkov-Cantacuzene V.A., Chikina Y.V., Timofeev V.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://vetjournal.spbguvm.ru/jour/article/view/1792">https://vetjournal.spbguvm.ru/jour/article/view/1792</self-uri><abstract><p>Несмотря на бурное развитие молекулярно-генетических методов исследования, буквально перевернувших наши представления о микроорганизмах, классические для микробиологии методы всё ещё не теряют своей актуальности. Особенно это касается вопросов, когда необходимо установить наличие у бактерии органелл или способности к токсинообразованию. В настоящей статье рассмотрены возможности визуализации параспоральных тел на примере B. thuringiensis с помощью окраски кумасси бриллиантовым синим. В работе использовались штаммы B. thuringiensis ИПМ-3 (Н-1), ИПМ-4 и ИПМ-4, а также штамм B. anthracis ∆ Ames (отрицательный контроль). Из единичных колоний культур, выращенных на агаре Хоттингера, готовили мазки как это принято в лабораторной практике, после чего окрашивали смесью, состоящей из 0,133% кумасси бриллиантового синего (G) в 50% растворе уксусной кислоты, и микроскопировали. Исследование мазков показало, что наилучшая визуализация параспоральных тел достигается при использовании двухсуточной культуры, а также экспозиции красителя в течении 30 минут. В этом случае достигается визуализация параспоральных тел в виде тёмно-синих структур на фоне светло-синих клеток и блестящих овальных спор во всех полях зрения. Предложенный способ окраски позволяет относительно просто визуализировать параспоральные тела, а также споры, что особенно важно при дифференцировке B. anthracis. Кроме того, визуализация спор в случае B. anthracis позволяет оценить качество споруляции, что делает предложенный способ безопасным конкурентом существующих.</p></abstract><trans-abstract xml:lang="en"><p>Despite the rapid development of molecular genetic methods of research, which have literally overturned our understanding of microorganisms, the classical methods of microbiology still do not lose their relevance. Especially it concerns questions when it is necessary to establish the presence of organelles or toxin-forming ability in a bacterium. In the present article the possibilities of visualisation of parasporal bodies on the example of B. thuringiensis by means of Cumassi Brilliant Blue staining are considered. B. thuringiensis strains IPM-3 (H-1), IPM-4 and IPM-4, as well as B. anthracis ∆ Ames strain (negative control) were used in this work. From single colonies of cultures grown on Hottinger's agar, smears were prepared as is customary in laboratory practice, then stained with a mixture consisting of 0.133% Cumassi Brilliant Blue (G) in 50% acetic acid solution and microscoped. Examination of smears showed that the best visualisation of parasporal bodies is achieved when a two-day culture is used, and dye exposure for 30 minutes. In this case visualisation of parasporal bodies in the form of dark-blue structures on the background of light-blue cells and shiny oval spores in all fields of view is achieved. The proposed staining method allows for relatively simple visualization of parasporal bodies and spores, which is especially important when differentiating B. anthracis from other representatives of the Bacillus cereus complex. In addition, visualization of spores in the case of B. anthracis allows for evaluation of the quality of sporulation, making the proposed method a safe competitor to existing ones.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>параспоральное тело</kwd><kwd>окраска</kwd><kwd>B. thuringiensis</kwd><kwd>B. anthracis</kwd><kwd>кумасси бриллиантовый синий</kwd></kwd-group><kwd-group xml:lang="en"><kwd>parasporal bodies</kwd><kwd>staining</kwd><kwd>B. thuringiensis</kwd><kwd>B. anthracis</kwd><kwd>Coomassie Brilliant Blue</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках отраслевой программы Роспотребнадзора.</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">Debaisieux P. Orgamsmes bacilliformes à structure parasporale spiralée. 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