Russian Journal of Biological Physics and Chemisrty Russian Journal of Biological Physics and Chemisrty АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ 2499-9962 54128 Общая биофизика General biophysics Общая биофизика Peculiarities of organization of mitochondria cytochrome chain of skeletal muscles in marine fish during annual cycle Особенности организации цитохромной цепи митохондрий скелетных мышц морских рыб на протяжении годового цикла Солдатов Александр Александрович Soldatov Aleksandr Aleksandrovich alekssoldatov@yandex.ru

доктор биологических наук;

doctor of sciences in biology;

 Парфенова И. А. Parfyonova I. A. Институт биологии южных морей им. А.О. Ковалевского РАН Севастополь Россия A.O. Kovalevsky Institute of Biology of the South Seas of the RAS Sevastopol Russian Federation Севастопольский государственный университет Севастополь Россия Sevastopol State University Sevastopol Russian Federation Севастопольский государственный университет Севастополь Россия Sevastopol State University Sevastopol Russian Federation 25 06 2017 25 06 2017 2 1 109 113 20 06 2017 20 06 2017 https://rusjbpc.ru/en/nauka/article/54128/view

Исследовали характер организации цитохромной цепи митохондрий скелетных мышц у трех видов черноморских рыб: кефали-сингиля ( Liza aurata Risso, 1810), камбалы-глоссы ( Platichthys flesus luscus Linnaeus, 1758) и бычка-кругляка ( Neogobius melanostomus Pallas, 1814) на протяжении годового цикла. У кефали и камбалы отмечен рост суммарного содержания цитохромов в мышцах в зимний период времени. Наибольшие изменения отмечали среди цитохромов группы аа 3. Стехиометрия дыхательной цепи митохондрий приближалась к нескомпенсированному типу. Наиболее лабильным оказалось отношение b/aa 3. В белых мышцах оно становилось меньше единицы, а в красных мышцах претерпевало выраженное снижение. У кефалей подобную организацию дыхательной цепи отмечали и в летний период времени. Полученные результаты отражают возникновение дефицита кислорода в скелетных мышцах обоих видов рыб. У кругляка дыхательная цепь митохондрий изначально имела нескомпенсированный тип организации. Индекс b/aa 3 был ниже единицы в обоих мышечных группах. Каких-либо изменений в организации цитохромной цепи в скелетных мышцах данного вида на протяжении годового цикла не наблюдали.

The characteristics of the organization of the cytochrome chain of mitochondria of skeletal muscles were studied in three species of the Black Sea fish: the mullet ( Liza aurata Risso, 1810), flounder ( Platichthys flesus luscus Linnaeus, 1758) and goby ( Neogobius melanostomus Pallas, 1814) Cycle. In the mullet and flounder, the total content of cytochromes in the muscles increased in the winter period. The greatest changes were found among the cytochromes of the aa3 group. The stoichiometry of the mitochondrial respiratory chain corresponded with an uncompensated type. The ratio of b / aa3 was the most labile one. In white muscles this ratio became lower than 1 and in red muscles it decreased significantly. In the mullet a similar organization of the respiratory chain was observed during the summer period. The results obtained reflect the occurrence of oxygen deficiency in the skeletal muscles of both species of fish. In the goby the mitochondrial respiratory chain initially had an uncompensated type of organization. The b / aa3 index was below 1 in both muscle groups. No changes in the organization of the cytochrome chain in skeletal muscles of this species were observed during the annual cycle.

 цитохромы стехиометрия цитохромной цепи скелетные мышцы годовой цикл морские рыбы cytochromes stoichiometry of the cytochrome chain skeletal muscle annual cycle marine fish

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