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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 custom-type="elpub" pub-id-type="custom">vavilov-165</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>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>СЕЛЕКЦИЯ НОВЫХ ВЫСОКОАКТИВНЫХ ШТАММОВ-ПРОДУЦЕНТОВ L-АЛАНИНА У BREVIBACTERIUM FLAVUM И СРАВНИТЕЛЬНАЯ ХАРАКТЕРИСТИКА ИХ АЛАНИНCИНТЕЗИРУЮЩЕЙ АКТИВНОСТИ</article-title><trans-title-group xml:lang="en"><trans-title>DEVELOPMENT OF NEW HIGHLY ACTIVE L-ALANINE PRODUCER STRAINS OF BREVIBACTERIUM FLAVUM AND COMPARATIVE CHARACTERIZATION OF THEIR ALANINE-SYNTHESIZING ACTIVITY</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>Аветисова</surname><given-names>Г. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Avetisova</surname><given-names>G. Ye.</given-names></name></name-alternatives><email xlink:type="simple">gavetisova@yahoo.com</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>Мелконян</surname><given-names>Л. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Melkonyan</surname><given-names>L. H.</given-names></name></name-alternatives><email xlink:type="simple">gavetisova@yahoo.com</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>Чахалян</surname><given-names>А. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Chakhalyan</surname><given-names>A. Kh.</given-names></name></name-alternatives><email xlink:type="simple">gavetisova@yahoo.com</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>Келешян</surname><given-names>С. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Keleshyan</surname><given-names>S. Gh.</given-names></name></name-alternatives><email xlink:type="simple">gavetisova@yahoo.com</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>Сагиян</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Saghyan</surname><given-names>A. S.</given-names></name></name-alternatives><email xlink:type="simple">gavetisova@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-производственный центр «Армбиотехнология» НАН РА,&#13;
Государственная некоммерческая организация, Ереван, Армения<country>Армения</country></aff><aff xml:lang="en">Scientific and Production Center «Armbiotechnology», National Academy of Sciences of Armenia, Yerevan, Armenia<country>Armenia</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>01</day><month>01</month><year>2015</year></pub-date><volume>17</volume><issue>3</issue><fpage>430</fpage><lpage>434</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Аветисова Г.Е., Мелконян Л.О., Чахалян А.Х., Келешян С.К., Сагиян А.С., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Аветисова Г.Е., Мелконян Л.О., Чахалян А.Х., Келешян С.К., Сагиян А.С.</copyright-holder><copyright-holder xml:lang="en">Avetisova G.Y., Melkonyan L.H., Chakhalyan A.K., Keleshyan S.G., Saghyan A.S.</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/165">https://vavilov.elpub.ru/jour/article/view/165</self-uri><abstract><p>У исходного штамма Brevibacterium flavum АА5 получены новые, не описанные ранее, устойчивые к L-циклосерину и β-хлор-L-аланину мутанты. Изучена их аланинпродуцирующая способность. Установлено, что устойчивость к L-циклосерину существенно не влияет на выход L-аланина, в то время как у устойчивых к β-хлор-L-аланину штаммов-продуцентов B. flavum GL1 и B. flavum GL18 уровень синтеза L-аланина превышает исходный на 23 и 38 % соответственно.</p></abstract><trans-abstract xml:lang="en"><p>New mutants, not described previously, resistant to L-cycloserine and β-chloro-L-alanine were derived from the parental strain Brevibacterium flavum AA5. Their alanine-producing ability was studied. It was found that the resistance to L-cycloserine did not affect the yield of L-alanine significantly, whereas the resistance to β-chloro-L-alanine of B. flavum GL1 and B. flavum GL18 strain-producers exceeds the initial level of L-alanine synthesis by 23 and 38 %, respectively.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Brevibacterium flavum</kwd><kwd>мутагенез</kwd><kwd>штамм-продуцент</kwd><kwd>L-аланин</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Brevibacterium flavum</kwd><kwd>mutagenesis</kwd><kwd>producer strain</kwd><kwd>L-alanine</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">Гайбакян Л.Д., Аветисова Г.Е., Азизян А.Г. и др. Изучение ферментов биосинтеза аланина у Brevibacterium fl avum // Биотехнология. 2003. № 1. С. 44–48.</mixed-citation><mixed-citation xml:lang="en">Гайбакян Л.Д., Аветисова Г.Е., Азизян А.Г. и др. 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