Response of Yesso scallop Patinopecten yessoensis to acute temperature challenge: physiological and biochemical parameters

文献类型： 外文期刊

第一作者： Hang Weiwei

作者： Hang Weiwei;Du Meirong;Fang Jianguang;Gao Yaping;Mao Yuze;Chen Qionglin;Lin Fan;Jiang Zengjie;Fang Jianguang;Jiang Zengjie

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关键词： Patinopecten yessoensis; acute water temperature changes; physiology; biochemical activities

期刊名称：JOURNAL OF OCEANOLOGY AND LIMNOLOGY （ 影响因子：1.265； 五年影响因子：1.276 ）

ISSN： 2096-5508

年卷期： 2019 年 37 卷 1 期

页码：

收录情况： SCI

摘要： Water temperature is generally considered to be a major factor affecting the physiological and biochemical activities of marine bivalves. Here, the physiological and biochemical responses of Yesso scallop, Patinopecten yessoensis, to acute water temperature changes in summer were studied. Scallops were transferred directly to a lower temperature (T-dec treatment) (from 23 degrees C to 15 degrees C) or to a higher temperature (T-inc, treatment) (from 15 degrees C to 23 degrees C) for 72 h, respectively. Results showed that the oxygen consumption and ammonia-N excretion rates of P. yessoensis decreased significantly in the T-dec treatment but increased dramatically at 6 h in the T-inc, treatment (P<0.05). In the T-dec treatment, hepatopancreas antioxidant enzyme activities, superoxide dismutase (SOD) and catalase (CAT) activities, increased substantially within 72 h (P<0.05). However, a significant decrease in CAT activity was found at 12 h in the T-inc, treatment (P<0.01). A significant enhancement of acid phosphatase (ACP) activity and malondialdehyde (MDA) content was detected when scallops were acutely exposed to a temperature of 15 degrees C. The levels of Cu/Zn-SOD gene expression in their gills up-regulated significantly in response to acute temperature changes (P<0.01). These data suggest that acute temperature change affects physiological and biochemical functions, and improve our knowledge of P. yessoensis under conditions of thermal stress.

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