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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">10.32634/0869-8155-2022-362-9-143-146</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-2274</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>АГРОНОМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGRONOMY</subject></subj-group></article-categories><title-group><article-title>Способность Bacillus mojavensis PS17 к росту и синтезу экзогенных ферментов в условиях низких температур</article-title><trans-title-group xml:lang="en"><trans-title>The ability of Bacillus mojavensis PS17 to grow and synthesize exogenous enzymes at low temperatures</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8876-8270</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Диабанкана</surname><given-names>Р. Ж.К.</given-names></name><name name-style="western" xml:lang="en"><surname>Diabankana</surname><given-names>R. G.C.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный, лаборатория Молекулярно-Генетических и Микробиологических Методов, 2/31. ул. Лобачевского, Казань, 420111;</p><p>младший научный сотрудник, 65 ул. Карла Маркса, Казань, 420111</p></bio><bio xml:lang="en"><p>associated researcher, laboratory of Molecular Genetic and Microbiological Methods, 2/31 Lobachevsky str., Kazan, 2/31. ул. Лобачевского, Казань, 420111;</p><p>associated researcher, 65, Karl Marx str., Kazan, 420111</p></bio><email xlink:type="simple">diabas.gilles@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9007-5641</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор биологических наук, заведующий отделом животноводства и ветеринарии, главный научный сотрудник, 2/31. ул. Лобачевского. Казань, 420111</p></bio><bio xml:lang="en"><p>doctor of Biological Sciences, Head of the Department of Animal Husbandry and Veterinary Medicine, Chief Researcher, 2/31, Lobachevsky str., Kazan</p></bio><email xlink:type="simple">rt-kazan@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9441-409X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Валидов</surname><given-names>Ш. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Validov</surname><given-names>Sh. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор биологических наук, заведующий лаборатории, лаборатория Молекулярно-Генетических и Микробиологических Методов, 2/31. ул. Лобачевского. Казань, 420111</p></bio><bio xml:lang="en"><p>doctor of Biological Sciences, Head of the laboratory of Molecular Genetics and Microbiological Methods, 2/31, Lobachevsky str., Kazan, 420111</p></bio><email xlink:type="simple">szvalidov@kpfu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0494-3693</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Афордоаньи</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Afordoanyi</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник, лаборатории Молекулярно-Генетических и Микробиологических Методов;</p><p>научный сотрудник,</p><p>2/31. ул. Лобачевского Казань, 420111</p></bio><bio xml:lang="en"><p>candidate of Biological Sciences, researcher, 2/31 Lobachevsky str., Kazan, 420111</p></bio><email xlink:type="simple">dafordoan@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный исследовательский центр «Казанский научный центр Российской академии наук»;&#13;
Центр агроэкологических исследований, Казанский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center "Kazan Scientific Center of the Russian Academy of Sciences";&#13;
Center for Agroecological Research, Kazan State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Татарский научно-исследовательский институт агрохимии и почвоведения</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tatar Research Institute of Agrochemistry and Soil Science</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральный исследовательский центр «Казанский научный центр Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center "Kazan Scientific Center of the Russian Academy of Sciences"</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Федеральный исследовательский центр «Казанский научный центр Российской академии наук»;&#13;
Татарский научно-исследовательский институт агрохимии и почвоведения</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center "Kazan Scientific Center of the Russian Academy of Sciences";&#13;
Tatar Research Institute of Agrochemistry and Soil Science</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>14</day><month>11</month><year>2022</year></pub-date><volume>0</volume><issue>9</issue><fpage>143</fpage><lpage>146</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Диабанкана Р.Ж., Чернов А.Н., Валидов Ш.З., Афордоаньи Д.М., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Диабанкана Р.Ж., Чернов А.Н., Валидов Ш.З., Афордоаньи Д.М.</copyright-holder><copyright-holder xml:lang="en">Diabankana R.G., Chernov A.N., Validov S.Z., Afordoanyi D.M.</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/2274">https://www.vetpress.ru/jour/article/view/2274</self-uri><abstract><p>Актуальность. Микроорганизмы, растущие при низкой температуре, играют ключевую роль в биохимических циклах холодной экосистемы. Эти микроорганизмы выделяют ферменты с широким спектром действия при низкой температуре, которые могут быть использованы в различных областях биотехнологической промышленности. Методы. Для изучения психротолерантной бактерий Bacillus mojavensis PS17 использовали суспензию, которую приготовили из ночной культуры. Способность Bacillus mojavensis PS17 расти в условиях пониженных температур изучали путем кинетического измерения оптической плотности (OD) при длине волны (l) 595 нм. Для этого бактериальную суспензию Bacillus mojavensis PS17 инокулировали в минимальную среду и инкубировали при различных низких температурах (5, 8 и 12 ±1 °C). Кривую роста измеряли каждый час с использованием спектрофотометра. Активность экзогенных ферментов определяли путем инокуляции и инкубации при температуре 4 ±1 °C бактериальной суспензии Bacillus mojavensis PS17 на минимальной среде BM с добавлением 1% различных субстрактов, такие как сухое молоко, Tween-80 и карбоксиметилцеллюлоза натрия. Результаты. Рeзультаты показали, что при низких температурах Bacillus mojavensis PS17 способ на к росту. Оценка активности экзогенных ферментов показала, что выделяемые ферменты исследуемого штамма не теряют свои свойства. Полученные данные могут свидетельствовать о широком температурном интервале активности штамма B. mojavensis PS17 и препаратов на его основе, а также о возможности промышленного использования экзоферментов этого штамма в различных отраслях промышленности: пищевой, текстильной и фармацевтической. </p></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. Microorganisms growing at low temperatures play a key role in the biochemical cycles in cold ecosystems. These microorganisms secrete enzymes with a wide range of activity at low temperature, which can be used in various fields of the biotechnology industry.</p></sec><sec><title>Methods</title><p>Methods. To study the psychrotolerant ability of Bacillus mojavensis PS17 bacteria, a bacterial suspension prepared from a nocturnal culture was used. The ability of Bacillus mojavensis PS17 to grow at low temperatures was studied by kinetic measurement of optical density (OD) at a wavelength (l) of 595 nm. For this purpose, bacterial suspension of Bacillus mojavensis PS17 was inoculated into a basal medium and incubated at various low temperatures (5, 8, and 12 ± 1 °C) for 12 hours. The growth curve was measured every hour using a spectrophotometer. The activity of exogenous enzymes was determined by inoculation and incubation at a temperature of 4 ± 1 °C a Bacillus mojavensis PS17 bacterial suspension on a basal medium amended with 1% of different substrates such as milk powder, Tween-80 and sodium carboxymethylcellulose.</p></sec><sec><title>Results</title><p>Results. The results showed that Bacillus mojavensis PS17 can grow at low temperatures. Evaluation of the activity of exogenous enzymes showed that the isolated enzymes of the studied strain do not lose their properties in conditions of low temperatures. The studied psychrotolerant properties of Bacillus mojavensis PS17 bacteria can be used in various manufacturing biotechnology such as food, textile and pharmaceutical. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>психротолерантные бактерии</kwd><kwd>активность экзогенных ферментов</kwd><kwd>фитаза</kwd><kwd>протеиназа</kwd><kwd>амилаза</kwd><kwd>целлюлаза</kwd><kwd>Bacillus mojavensis PS17</kwd></kwd-group><kwd-group xml:lang="en"><kwd>psychrotolerant bacteria</kwd><kwd>exogenous enzymes activity</kwd><kwd>phytase</kwd><kwd>protease</kwd><kwd>amylase</kwd><kwd>cellulase</kwd><kwd>Bacillus mojavensis PS17</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено при финансовой поддержке Министерства образования и науки Российской Федерации: соглашение № 075-15-2021-1395 от 25.10.2022, уникальный идентификатор контракта: RF----1930.61321X0001, номер проекта: 15.IP.21. 0020.</funding-statement><funding-statement xml:lang="en">The study was carried out with the financial support of the Ministry of Education and Science of the Russian Federation: agreement No. 075-15-2021-1395 dated October 25, 2022, unique contract identifier: RF----1930.61321X0001, project number: 15.IP.21. 0020.</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">Kumar R, Singh PC, Singh S. 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