The relationship between the total carotenoid content and the state of the antioxidant (AO) complex was studied in tissues of the eurybiontic Black Sea bivalve mollusk Cerastoderma glaucum (Bruguière, 1789) from natural habitats, which has a high oxidative stress tolerance. In the hepatopancreas, gills and foot, the total carotenoid content, glutathione peroxidase (GP), glutathione reductase (GR), superoxide dismutase (SOD) and catalase activities, as well as the level of reduced glutathione (G-SH) and TBA-reactive products were determined. A direct correlation was established between the total carotenoid content and the GSH level (R2 = 0.98) and GP activity (R2 = 0.84). This correlation reflects a possible synergistic interaction between these systems when performing AO functions. An inverse relationship was found between the total carotenoid content and SOD and catalase activities (R2 = 0.97 and 0.98, respectively), which may be due to a possible competitive interrelationship of these two systems. The revealed correlations reflect specific interrelationships between carotenoids and the AO complex in the clam C. glaucum, as well as their role in the formation of adaptive responses of the mollusk to oxidative stress. They can also serve a starting point for further research aimed at obtaining biologically active substances with antioxidant properties from mollusk tissues.

中文翻译：

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Eurybiontic 双壳软体动物 Cerastoderma glaucum (Cardiidae) 组织中的类胡萝卜素含量和抗氧化状态

在来自自然栖息地的具有高氧化应激耐受性的 eurybiontic 黑海双壳软体动物 Cerastoderma glaucum (Bruguière, 1789) 的组织中研究了总类胡萝卜素含量与抗氧化剂 (AO) 复合物状态之间的关系。在肝胰腺、鳃和足中，总类胡萝卜素含量、谷胱甘肽过氧化物酶 (GP)、谷胱甘肽还原酶 (GR)、超氧化物歧化酶 (SOD) 和过氧化氢酶活性，以及​​还原型谷胱甘肽 (G-SH) 和 TBA-测定反应产物。总类胡萝卜素含量与 GSH 水平 (R2 = 0.98) 和 GP 活性 (R2 = 0.84) 之间建立了直接相关性。这种相关性反映了执行 AO 功能时这些系统之间可能的协同交互。发现类胡萝卜素总含量与 SOD 和过氧化氢酶活性之间呈负相关（R2 分别为 0.97 和 0.98），这可能是由于这两个系统之间可能存在竞争关系。揭示的相关性反映了类胡萝卜素和青光蛤中 AO 复合物之间的特定相互关系，以及它们在软体动物对氧化应激的适应性反应形成中的作用。它们还可以作为进一步研究的起点，旨在从软体动物组织中获得具有抗氧化特性的生物活性物质。揭示的相关性反映了类胡萝卜素和青光蛤中 AO 复合物之间的特定相互关系，以及它们在软体动物对氧化应激的适应性反应形成中的作用。它们还可以作为进一步研究的起点，旨在从软体动物组织中获得具有抗氧化特性的生物活性物质。揭示的相关性反映了类胡萝卜素和青光蛤中 AO 复合物之间的特定相互关系，以及它们在软体动物对氧化应激的适应性反应形成中的作用。它们还可以作为进一步研究的起点，旨在从软体动物组织中获得具有抗氧化特性的生物活性物质。