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首页> 外文期刊>Marine biology >Xenobiotic metabolism modulation after long-term temperature acclimation in juveniles of Solea senegalensis
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Xenobiotic metabolism modulation after long-term temperature acclimation in juveniles of Solea senegalensis

机译：塞内加尔Solea幼鱼经过长期温度适应后的异源生物代谢调节

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摘要

The Senegalese sole, Solea senegalensis, originates from subtropical waters and displays great adaptability to environmental factors such as temperature. A comprehensive study on the effect of long-term temperature acclimation on xenobiotic metabolism, along with the assessment of other parameters related to physiological status, was designed to characterize the response of this species to temperature fluctuations within a realistic range. S. senegalensis juveniles were acclimated for a period of 60 days to two different ambient temperatures, 15 and 20 ℃. Several hepatic, gill, muscular and plasmatic parameters were measured over time at the two temperatures. The lower temperature triggered, over time, the synthesis of hepatic microsomal cytochrome P450-related enzymes (e.g. 7-ethoxyresorufin O-deethylase (EROD), carboxy-lesterases, and the conjugating enzyme uridine diphos-phate glucuronosyltransferase and, more significantly, EROD activity in gills. The antioxidant enzyme activities: catalase and glutathione reductase in liver were positively correlated to temperature. Plasmatic parameters (glucose, lactate, triglycerides and osmolality) were consistent with a good physiological status of the experimental fish. The expression of heat shock proteins in muscle did not significantly change in the two temperature groups. The results evidenced that the subtropical species S. senegalensis also uses the temperature compensation strategy to different degrees for most biotransformation enzymes; this response was more intense and faster in gills than in liver. This compensatory strategy did not apply to antioxidant enzymes and GST. The present findings highlight the need to consider the thermal history of the fish when using S. senegalensis as a sentinel in a biomarker-based pollution monitoring study. The fish plasticity on its strategy of physiological adaptation to temperature changes could contribute to explain the success in the geographical expansion of this species.
机译：塞内加尔唯一的塞内加尔松（Solea senegalensis）起源于亚热带水域，对环境因素（例如温度）显示出极大的适应性。长期温度适应对异种生物代谢的影响的综合研究，以及与生理状态相关的其他参数的评估，旨在表征该物种对实际范围内温度波动的响应。塞内加尔沙门氏菌的幼虫在两种不同的环境温度（15和20℃）下适应60天。在这两个温度下，随时间测量了几个肝，腮，肌肉和血浆参数。随着时间的流逝，较低的温度触发了肝微粒体细胞色素P450相关酶（例如7-乙氧基间苯二酚O-脱乙基酶（EROD），羧基酯酶和结合酶尿苷二磷酸-葡糖醛酸糖基转移酶）的合成，更重要的是，EROD活性肝脏中的抗氧化酶活性：过氧化氢酶和谷胱甘肽还原酶与温度呈正相关，血浆参数（葡萄糖，乳酸，甘油三酸酯和重量克分子渗透压浓度）与实验鱼的生理状态一致，热休克蛋白的表达在两个温度组中，肌肉没有明显变化，结果表明，亚热带塞内加尔S. senegalensis也对大多数生物转化酶使用了不同程度的温度补偿策略；这种ill在than中的反应比在肝脏中更强烈，更快。该策略不适用于抗氧化酶和GST。在基于生物标志物的污染监测研究中，使用塞内加尔沙门氏菌作为定点时，需要强调鱼类的热史。鱼类对温度变化的生理适应策略的可塑性可能有助于解释该物种在地理扩展方面的成功。

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  • 来源
    《Marine biology》 |2015年第2期|401-412|共12页
  • 作者

    M. Sole; I. Varo; A. Gonzalez-Mira; A. Torreblanca;

  • 作者单位

    Institut de Ciencies del Mar (ICM-CSIC), Passeig Maritim de la Barceloneta 37-49,08003 Barcelona, Spain;

    Instituto de Acuicultura Torre de la Sal (IATS-CSIC), 12595 Ribera de Cabanes (Castellon), Spain;

    Departamento Biologia Funcional y Antropologia Fisica, Universitat de Valencia, Moliner 50 Burjassot, 46100 Valencia, Spain;

    Departamento Biologia Funcional y Antropologia Fisica, Universitat de Valencia, Moliner 50 Burjassot, 46100 Valencia, Spain;

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