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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">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2024-384-7-166-169</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3183</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>АГРОИНЖЕНЕРИЯ И ПИЩЕВЫЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGROENGINEERING AND FOOD TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Культурально-физиологическая характеристика штаммов Sinorhizobium fredii селекции ВНИИ сои и их способность продуцировать витамины В9 и В12</article-title><trans-title-group xml:lang="en"><trans-title>Cultural and physiological characteristics of Sinorhizobium fredii strains selected by the All-Russian Scientific Research Institute of Soybean and their ability to produce vitamins В9 and В12</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1141-1900</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якименко</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakimenko</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мария Владимировна Якименко - ведущий научный сотрудник, заведующая лабораторией биологических исследований, кандидат биологических наук </p><p>Игнатьевское шоссе, 19, Благовещенск, Амурская обл., 675000</p></bio><bio xml:lang="en"><p>Maria Vladimirovna Yakimenko - Leading researcher, Head of the Laboratory of Biological Research, Candidate of Biological Sciences </p><p>19 Ignatievskoe highway, Blagoveshchensk, Amur region, 675000</p></bio><email xlink:type="simple">yamv@vniisoi.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/0000-0003-0098-3484</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Татаренко</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Tatarenko</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Юрьевич Татаренко - старший научный сотрудник лаборатории биологических исследований, кандидат сельскохозяйственных наук </p><p>Игнатьевское шоссе, 19, Благовещенск, Амурская обл., 675000</p></bio><bio xml:lang="en"><p>Igor Yurievich Tatarenko - Senior Researcher at the Laboratory of Biological Research, Candidate of Agricultural Sciences </p><p>19 Ignatievskoe highway, Blagoveshchensk, Amur region, 675000</p></bio><email xlink:type="simple">tigy@vniisoi.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/0000-0003-4611-767X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сорокина</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sorokina</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Арина Игоревна Сорокина - ведущий научный сотрудник лаборатории биологических исследований, кандидат ветеринарных наук </p><p>Игнатьевское шоссе, 19, Благовещенск, Амурская обл., 675000</p></bio><bio xml:lang="en"><p>Arina Igorevna Sorokina - Leading Researcher at the Laboratory of Biological Research, Candidate of Veterinary Sciences </p><p>19 Ignatievskoe highway, Blagoveshchensk, Amur region, 675000</p></bio><email xlink:type="simple">aziradot@mail.ru</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 сои (ФБГНУ ФНЦ ВНИИ сои)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>All-Russian Scientific Research Institute of Soybean (FSBSI FRC ARSRI of Soybean)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>07</month><year>2024</year></pub-date><volume>0</volume><issue>7</issue><fpage>166</fpage><lpage>169</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Якименко М.В., Татаренко И.Ю., Сорокина А.И., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Якименко М.В., Татаренко И.Ю., Сорокина А.И.</copyright-holder><copyright-holder xml:lang="en">Yakimenko M.V., Tatarenko I.Y., Sorokina A.I.</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://www.vetpress.ru/jour/article/view/3183">https://www.vetpress.ru/jour/article/view/3183</self-uri><abstract><p>Актуальность. Микроорганизмы, стимулирующие рост растений (PGPB), в том числе и ризобии, с помощью различного физиологического, молекулярного и биохимического воздействий улучшают продуктивность растений. Из вышеперечисленных факторов наименее изучена роль витаминов. Для оценки способности ризобий продуцировать витамины В9 и В12 были отобраны штаммы вида Sinorhizobium fredii, которые представляют собой однородную группу и имели хороший и обильный рост биомассы на различных питательных средах. Методы. Культурально-физиологические свойства штаммов изучали общепринятыми лабораторными микробиологическими методами. Пересевы коллекционных штаммов ризобий, изучение различных свойств этих бактерий проводили на питательной среде МДА и МРС, а также на производственных питательных средах RM и TY производства фирмы HIMEDIA (Индия). Определение чувствительности штаммов S. fredii к антибиотикам проводили диско-диффузным методом. Содержание в бактериальной массе ризобий витаминов В9 и В12 определяли хемилюминесцентным иммунным методом с использованием иммунохимических систем Access на хемилюминесцентном анализаторе Access2. Результаты. Установлено, что изучаемые штаммы S. fredii имеют хороший или обильный рост бактериальной массы на питательных средах МРС, МДА, RM и TY. Они каталазоположительные, обладают высокой и средней устойчивостью к АБП. Наибольшую концентрацию витамина В9 в биомассе синтезировали штаммы СБ-39 (75,0 пг/мл), ББ-49 (66,6 пг/мл) и ТБ-488 (48,9 пг/мл), а витамина В12 — штаммы ББ-49, СБ-39 (1500 пг/мл).</p></abstract><trans-abstract xml:lang="en"><p>Relevance. Microorganisms that stimulate plant growth (PGPB), including rhizobia, improve plant productivity through various physiological, molecular and biochemical effects. Of the above factors, the role of vitamins has been studied to a lesser extent. For assessing the ability of rhizobia to produce vitamins В9 и В12, Sinorhizobium fredii strains were selected, which represent a homogeneous group and had good and abundant biomass growth on various nutrient media. Methods. The cultural and physiological properties of the strains were studied using generally accepted laboratory microbiological methods. Passages of collection strains of rhizobia and the study of various properties of these bacteria were carried out on nutrient media MDA and MRS, and on production nutrient media RM and TY produced by HIMEDIA company (India). Determination of the sensitivity of S. fredii strains to antibiotics was carried out using the disc diffusion method. The content of vitamins B9 and B12 in the bacterial mass of rhizobia was determined by the chemiluminescent immune method with the use of paramagnetic particles, and by applying immunochemical Access systems, on the chemiluminescence analyzer Access2. Results. It was found that the studied strains S. fredii have good or abundant growth of bacterial mass on nutrient media MRS, MDA, RM and TY. They are catalase-positive, have high and medium resistance to antibiotics. The highest concentration of vitamin B9 in biomass was synthesized by strains SB-39 (75.0 pg/ml), BB-49 (66.6 pg/ml) and TB-488 (48.9 pg/ml), and vitamin B12 — by strains BB-49 and SB-39 (1500 pg/ml).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ризобии</kwd><kwd>витамины</kwd><kwd>культуральные свойства</kwd><kwd>питательные среды</kwd><kwd>антибиотики</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rhizobia</kwd><kwd>vitamin В9</kwd><kwd>vitamin В12</kwd><kwd>cultural properties</kwd><kwd>nutrient media</kwd><kwd>antibiotics</kwd><kwd>catalase</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Singh D., Ghosh P., Kumar J., Kumar A. 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