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Impact of hypoxia conditions on the Mnemiopsis leidyi A. Agassiz, 1865 bioluminescence
Luminescence ( IF 3.2 ) Pub Date : 2023-04-03 , DOI: 10.1002/bio.4498 Olga Mashukova 1 , Mikhail Silakov 1 , Evgenia Kolesnikova 1 , Alexandra Temnykh 1
Luminescence ( IF 3.2 ) Pub Date : 2023-04-03 , DOI: 10.1002/bio.4498 Olga Mashukova 1 , Mikhail Silakov 1 , Evgenia Kolesnikova 1 , Alexandra Temnykh 1
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The findings of the study on the impact of hypoxia on the glow of the Black Sea ctenophore Mnemiopsis leidyi A. Agassiz, 1865 of three size groups (20–30, 30–45, and 45–60 mm) were obtained under experimental conditions. Peculiarities of ctenophore bioluminescence were studied during mechanical and chemical stimulation under the conditions of normoxia (at an oxygen concentration of 5.6–6.7 mg O2 L−1), moderate hypoxia (2.5–2.8 mg O2 L−1), and acute hypoxia (1.2–1.5 mg O2 L−1). An increase in the amplitude and energy of luminescence of the ctenophores mechanically and chemically stimulated was observed at an oxygen concentration of 1.2–1.5 mg O2 L−1 (acute hypoxia) in two size groups in the lobate form (30–45 and 45–60 mm). The inhibition of amplitude, energy, and duration of the signal was registered in M. leidyi ctenophores at the transitional stage from larva to the lobate form under conditions of acute hypoxia. It was noted that in normoxia, the values of the amplitude and energy of the bioluminescent signal of M. leidyi increase along with a size growth of an individual. This phenomenon was observed both during mechanical and chemical stimulations. Under conditions of acute hypoxia, this trend was mainly preserved.
中文翻译：
缺氧条件对 Mnemiopsis leidyi A. Agassiz, 1865 生物发光的影响
缺氧对黑海栉水母Mnemiopsis leidyi A. Agassiz, 1865 三个大小组（20-30、30-45 和 45-60 毫米）发光影响的研究结果是在实验条件下获得的。研究了常氧（氧浓度为5.6-6.7 mg O 2 L -1）、中度缺氧（2.5-2.8 mg O 2 L -1）和急性缺氧条件下机械和化学刺激过程中栉水母生物发光的特性。 （1.2–1.5 mg O 2 L -1）。在氧浓度为 1.2–1.5 mg O 2时，观察到机械和化学刺激的栉水母发光幅度和能量增加 L −1（急性缺氧），有两个叶状大小组（30-45 和 45-60 毫米）。在急性缺氧条件下，在从幼虫到叶状形态的过渡阶段，信号的幅度、能量和持续时间受到抑制。值得注意的是，在含氧量正常的情况下，M. leidyi生物发光信号的幅度和能量值随着个体体型的增长而增加。在机械刺激和化学刺激期间都观察到了这种现象。在急性缺氧条件下，这种趋势主要得以保留。
更新日期：2023-04-03
中文翻译：
缺氧条件对 Mnemiopsis leidyi A. Agassiz, 1865 生物发光的影响
缺氧对黑海栉水母Mnemiopsis leidyi A. Agassiz, 1865 三个大小组（20-30、30-45 和 45-60 毫米）发光影响的研究结果是在实验条件下获得的。研究了常氧（氧浓度为5.6-6.7 mg O 2 L -1）、中度缺氧（2.5-2.8 mg O 2 L -1）和急性缺氧条件下机械和化学刺激过程中栉水母生物发光的特性。 （1.2–1.5 mg O 2 L -1）。在氧浓度为 1.2–1.5 mg O 2时，观察到机械和化学刺激的栉水母发光幅度和能量增加 L −1（急性缺氧），有两个叶状大小组（30-45 和 45-60 毫米）。在急性缺氧条件下，在从幼虫到叶状形态的过渡阶段，信号的幅度、能量和持续时间受到抑制。值得注意的是，在含氧量正常的情况下，M. leidyi生物发光信号的幅度和能量值随着个体体型的增长而增加。在机械刺激和化学刺激期间都观察到了这种现象。在急性缺氧条件下，这种趋势主要得以保留。
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