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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">vavilov</journal-id><journal-title-group><journal-title xml:lang="ru">Вавиловский журнал генетики и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Vavilov Journal of Genetics and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-3259</issn><publisher><publisher-name>Institute of Cytology and Genetics of Siberian Branch of the RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/VJ17.319</article-id><article-id custom-type="elpub" pub-id-type="custom">vavilov-1274</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>ЭКОЛОГИЧЕСКАЯ И ПОПУЛЯЦИОННАЯ ГЕНЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ECOLOGICAL AND POPULATION GENETICS</subject></subj-group></article-categories><title-group><article-title>Филогенетический анализ микробного мата в горячем источнике Гарга (Байкальская  рифтовая зона) и разнообразие  природных пептидаз</article-title><trans-title-group xml:lang="en"><trans-title>Phylogenetic analysis  of the microbial mat in the hot spring Garga (Baikal rift zone) and the diversity of natural peptidases</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лаврентьева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lavrentyeva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Улан-­Удэ.</p></bio><bio xml:lang="en"><p>Ulan­-Ude.</p></bio><email xlink:type="simple">lena_l@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Раднагуруева</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Radnagurueva</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Улан-­Удэ.</p></bio><bio xml:lang="en"><p>Ulan­-Ude.</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Банзаракцаева</surname><given-names>Т. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Banzaraktsaeva</surname><given-names>T. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Улан-­Удэ.</p></bio><bio xml:lang="en"><p>Ulan­-Ude.</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Базаров</surname><given-names>С. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazarov</surname><given-names>S. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Улан-­Удэ.</p></bio><bio xml:lang="en"><p>Ulan­-Ude.</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бархутова</surname><given-names>Д. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Barkhutova</surname><given-names>D. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Улан-­Удэ.</p></bio><bio xml:lang="en"><p>Ulan­-Ude.</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ульзетуева</surname><given-names>И. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Ulzetueva</surname><given-names>I. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Улан-­Удэ.</p></bio><bio xml:lang="en"><p>Ulan­-Ude.</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернявский</surname><given-names>М. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyavsky</surname><given-names>M. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Улан-­Удэ.</p></bio><bio xml:lang="en"><p>Ulan­-Ude.</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кабилов</surname><given-names>М. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Kabilov</surname><given-names>M. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск.</p></bio><bio xml:lang="en"><p>Novosibirsk.</p></bio><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хахинов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khakhinov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Улан-­Удэ.</p></bio><bio xml:lang="en"><p>Ulan­-Ude.</p></bio><xref ref-type="aff" rid="aff-6"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт общей и экспериментальной биологии Сибирского отделения Российской академии наук; Бурятский государственный университет.<country>Россия</country></aff><aff xml:lang="en">Institute of General and Experimental Biology SB RAS;  Buryat State University.<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт общей и экспериментальной биологии Сибирского отделения Российской академии наук.<country>Россия</country></aff><aff xml:lang="en">Institute of General and Experimental Biology SB RAS.<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Байкальский институт природопользования Сибирского отделения Российской академии наук.<country>Россия</country></aff><aff xml:lang="en">Baikal Institute of Nature Management SB RAS.<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Геологический институт Сибирского отделения Российской академии наук.<country>Россия</country></aff><aff xml:lang="en">Geological Institute SB RAS.<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru">Институт химической биологии и фундаментальной медицины Сибирского отделения Российской академии наук.<country>Россия</country></aff><aff xml:lang="en">Institute of Chemical Biology and Fundamental Medicine SB RAS.<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru">Бурятский государственный университет.<country>Россия</country></aff><aff xml:lang="en">Buryat State University.<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>21</day><month>01</month><year>2018</year></pub-date><volume>21</volume><issue>8</issue><fpage>959</fpage><lpage>963</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лаврентьева Е.В., Раднагуруева А.А., Банзаракцаева Т.Г., Базаров С.М., Бархутова Д.Д., Ульзетуева И.Д., Чернявский М.К., Кабилов М.Р., Хахинов В.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Лаврентьева Е.В., Раднагуруева А.А., Банзаракцаева Т.Г., Базаров С.М., Бархутова Д.Д., Ульзетуева И.Д., Чернявский М.К., Кабилов М.Р., Хахинов В.В.</copyright-holder><copyright-holder xml:lang="en">Lavrentyeva E.V., Radnagurueva A.A., Banzaraktsaeva T.G., Bazarov S.M., Barkhutova D.D., Ulzetueva I.D., Chernyavsky M.K., Kabilov M.R., Khakhinov V.V.</copyright-holder><license 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://vavilov.elpub.ru/jour/article/view/1274">https://vavilov.elpub.ru/jour/article/view/1274</self-uri><abstract><p>В настоящее время в микробной экологии активно применяются методы метагеномного анализа, которые позволяют охарактеризовать таксономический состав и разнообразие микробных сообществ. Гидролитические бактерии, в частности протеолитики, в горячих источниках занимают нишу первичных деструкторов, благодаря способности секретировать фер­менты, активные в широких диапазонах значений рН и температур. Целью данной работы было определение таксономического состава, структуры бактериального микробного мата и выявление пептидаз в термофильном микробном сообществе Гарга. Гидрохимический анализ воды показал высокое содержание сульфатов – 390 мг/дм3. В микроэлементном составе воды отмечены повышенные концентрации B, Rb, Li, Ba и Sr. Проведен анализ таксономического разнообразия микробного мата в горячем источнике Гарга, в температурной зоне 54 °С. Структура микробного мата представлена разнообразными филогенетическими группами мезофильных и термофильных бактерий с различными метаболическими и экологическими функциями. Наибольшую долю в сообществе составил филум Firmicutes (64 %). Анализ собранных метагеномных последовательностей микробного мата позволил впервые систематизировать и дать характеристику выявленных пептидаз в микробном мате горячего источника Гарга. Сравнение метагеномных последовательностей репрезентативных данных выявило доминирование ферментов класса сериновых пептидаз. Природные пептидазы в исследуемом микробном сообществе обеспечивают гидролиз биополимеров на первых этапах деструкции органического вещества и могут представлять биотехнологический интерес.</p></abstract><trans-abstract xml:lang="en"><p>Hydrolytic bacteria (in particular, proteolytics) are the primary destructors in hot springs. The proteolytic bacteria are able to secrete enzymes that are active in wide ranges of pH and temperature. The aim of this work was to study the taxonomic composition, the structure of the bacterial microbial mat, and to study the distribution of peptidases in the thermophilic microbial Garga community. For the study, we sampled the microbial mat at a water temperature of 54.2 °C and a pH of 8.3. Hydrochemical analysis of water showed a high content of sulfates, 390 mg/dm3. The microelement composition of water showed that the Garga water had increased concentrations of B, Rb, Li, Ba, Sr. We analyzed the taxonomic diversity of the microbial community in the hot spring Garga at a temperature zone of 54 °C. The structure of the microbial mat is represented by various phylogenetic groups of mesophilic and thermophilic bacteria, with various metabolic and ecological functions. The dominant group in this community was the phylum Firmicutes (64 %). The analysis of the collected metagenomic sequences of the microbial community allowed the detected peptidases in the microbial community in the hot spring Garga to be for the first time systematized and characterized. Comparisons of metagenomic sequences of representative data showed a dominance of serine peptidase class enzymes. Natural peptidases in the investigated microbial community ensure the hydrolysis of biopolymers at the first stages of the destruction of organic matter and may have biotechnological relevance.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>филогенетический анализ</kwd><kwd>микробное сообщество</kwd><kwd>метагеномный анализ</kwd><kwd>пептидазы</kwd><kwd>Байкальская рифтовая зона</kwd></kwd-group><kwd-group xml:lang="en"><kwd>phylogenetic analysis</kwd><kwd>microbial community</kwd><kwd>metagenomic analysis</kwd><kwd>peptidases</kwd><kwd>Baikal rift zone</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">Andrade C.M., Aguiar W.B., Antranikian G. Physiological aspects involved in production of xylanolytic ensymes by deep-sea hyperthermophilic archaeon Pyrodictium abyssi. Appl. Biochem. 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