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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">54480</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ЭКОЛОГИЧЕСКАЯ БИОФИЗИКА</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>ECOLOGICAL BIOPHYSICS</subject>
    </subj-group>
    <subj-group>
     <subject>ЭКОЛОГИЧЕСКАЯ БИОФИЗИКА</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">THE ACTIVITY OF Na+, K+-ATPase AND THE BALANCE OF MONOVALENT CATIONS IN NUCLEAR ERYTHROCYTES OF MARINE FISH UNDER HYPOOSMOTIC LOAD (EXPERIMENTS IN VIVO)</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТИВНОСТЬ Na+, K+-АТФазы И БАЛАНС ОДНОВАЛЕНТНЫХ КАТИОНОВ В ЯДЕРНЫХ ЭРИТРОЦИТАХ МОРСКИХ РЫБ В УСЛОВИЯХ ГИПООСМОТИЧЕСКОЙ НАГРУЗКИ (ЭКСПЕРИМЕНТЫ IN VIVO)</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Солдатов</surname>
       <given-names>А А</given-names>
      </name>
      <name xml:lang="en">
       <surname>Soldatov</surname>
       <given-names>A A</given-names>
      </name>
     </name-alternatives>
     <email>alekssoldatov@yandex.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт морских биологических исследований им. А.О. Ковалевского РАН ; Севастопольский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">A.O. Kovalevsky Institute of Biology of Southern Seas RAN ; Sevastopol State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2019-12-25T20:22:29+03:00">
    <day>25</day>
    <month>12</month>
    <year>2019</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2019-12-25T20:22:29+03:00">
    <day>25</day>
    <month>12</month>
    <year>2019</year>
   </pub-date>
   <volume>4</volume>
   <issue>4</issue>
   <fpage>570</fpage>
   <lpage>576</lpage>
   <history>
    <date date-type="received" iso-8601-date="2019-12-20T20:22:29+03:00">
     <day>20</day>
     <month>12</month>
     <year>2019</year>
    </date>
    <date date-type="accepted" iso-8601-date="2019-12-20T20:22:29+03:00">
     <day>20</day>
     <month>12</month>
     <year>2019</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54480/view">https://rusjbpc.ru/en/nauka/article/54480/view</self-uri>
   <abstract xml:lang="ru">
    <p>В условиях эксперимента in vivo исследовано влияние гипоосмотической нагрузки на кровь двух видов морских рыб, отличающихся толерантностью к фактору солености. Объектами исследования служили черноморские бычки: Gobius cobitis (Pallas, 1814) - обнаруживается в прибрежных акваториях, лагунах устьях рек и Neogobius melanostomus (Pallas, 1814) - встречается в морских и пресных водоемах. Контрольные группы рыб содержали при 12-14 о/оо. Опытные группы рыб находились в течение 44-45 суток при 4,8-5,6 о/оо. Температура воды поддерживалась на уровне 15 + 1оС. Отбор проб крови осуществлялся на 1-5, 14-16 и 44-45 сутки эксперимента. Оценивали содержание воды в крови, эритроцитарные индексы, активность Na+, K+-ATPазы и баланс Na+ и K+ на мембране эритроцита. В условиях гипоосмотической нагрузки G. cobitis не проявлял признаков активной осморегуляции. Содержание воды в крови в ходе эксперимента повышалось на 9,5-14,2 % (p &lt; 0,001) и сохранялось на данном уровне в течение всего периода наблюдений. Это происходило на фоне свеллинга и лизиса части эритроцитарной массы. Одновременно происходила диссипация ионных градиентов на уровне клеток красной крови и снижение активности Na+, K+-ATPазы. N. melanostomus , напротив, компенсировал начальное (1-5 сутки) повышение содержания воды в крови. У него не наблюдали признаков свеллинга и лизиса клеток красной крови. При этом эритроциты проявляли признаки активной осморегуляции. При гидратации плазмы крови у них отмечался направленный выход K+ при сохранении содержания Na+ в клетке. В сравнении с G. cobitis препараты эритроцитарных мембран N. melanostomus отличались повышенной активностью Na+, K+-ATPазы. Эти качества, по-видимому, позволяют данному виду переносить достаточно широкий диапазон колебания солености среды и лежат в основе его эвригалинности.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The effect of hypoosmotic load on the blood of two species of marine fish, characterized by tolerance to the salinity factor, was studied in vivo experiment. The objects of study were the Black Sea gobies: Gobius cobitis (Pallas, 1814) - found in coastal waters, lagoons, estuaries and Neogobius melanostomus (Pallas, 1814) - found in marine and fresh water. The control group of fish was kept at 12-14o/oo. Experimental groups of fish were within 44-45 days at 4,8-5,6o/oo. The water temperature was maintained at 15 + 1oC. Blood samples were taken at 1-5, 14-16 and 44-45 days of the experiment. Estimated water content in the blood, erythrocyte indices, the activity of Na+, K+-ATPase and the balance of Na+ and K+ on the membrane of the erythrocyte. Under hypoosmotic load G. cobitis showed no signs of active osmoregulation. The water content in the blood during the experiment increased by 9.5-14.2% (p &lt; 0.001) and remained at this level throughout the observation period. This has resulted to svelling and lysis of the red blood cell mass. Simultaneously there was a dissipation of ionic gradients at the level of red blood cells and a decrease in the activity of Na+, K+-ATPase. N. melanostomus , on the contrary, compensated for the initial (1-5 days) increase in blood water content. It showed no signs of svelling or lysis of red blood cells. In this case, red blood cells showed signs of active osmoregulation. At hydration of blood plasma, they had a directed yield of K+ while maintaining the Na+ content in the cell. In comparison with G. cobitis , preparations of erythrocyte membranes N. melanostomus differed increased activity of Na+, K+-ATPase. These qualities apparently to allow were tolerate N. melanostomus to wide range of salinity fluctuations and are the basis of its euryhalinity.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>морские рыбы</kwd>
    <kwd>гипоосмотическая нагрузка</kwd>
    <kwd>кровь</kwd>
    <kwd>эритроциты</kwd>
    <kwd>баланс Na+ и K+</kwd>
    <kwd>активность Na+</kwd>
    <kwd>K+-ATPазы</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>marine fish</kwd>
    <kwd>hypoosmotic load</kwd>
    <kwd>blood</kwd>
    <kwd>red blood cells</kwd>
    <kwd>the balance of Na+ and K+</kwd>
    <kwd>activity of Na+</kwd>
    <kwd>K+-ATPase</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена в рамках госзадания (№ гос. регистрации АААА-А18-118021490093-4)</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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  <p></p>
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