文献类型：期刊文献

英文题名：Effects of hypoxic stress on the digestion, energy metabolism, oxidative stress regulation, and immune function of the pearl oyster (Pinctada fucata martensii)

作者：Chen, Jiayi[1];Huang, Jing[1];Peng, Jiaqi[1];Yang, Chuangye[1,2,3,4];Liao, Yongshan[2];Li, Junhui[1];Deng, Yuewen[1,2,3,4];Du, Xiaodong[1,2,3,4]

机构：[1]Guangdong Ocean Univ, Fisheries Coll, Zhanjiang 524088, Peoples R China;[2]Guangdong Sci & Innovat Ctr Pearl Culture, Zhanjiang 524088, Peoples R China;[3]Guangdong Prov Engn Lab Mariculture Organism Breed, Zhanjiang 524088, Peoples R China;[4]Guangdong Prov Key Lab Aquat Anim Dis Control & Hl, Zhanjiang 524088, Peoples R China

年份：2022

卷号：25

外文期刊名：AQUACULTURE REPORTS

收录：SCI-EXPANDED(收录号：WOS:000842011500007)、、Scopus(收录号：2-s2.0-85134259141)、WOS

基金：This work was supported by Science and Technology Program of Guangdong Province (Grant No. 2021B0202020003) , the Open Fund of Key Laboratory of Tropical Marine Bio-resources and Ecology of Chinese Academy of Science and Guangdong Provincial Key Laboratory of Applied Marine Biology (Grant No. 2021011002) , National Natural Science Foundation of China (Grant No. 32102817) , and Department of Education of Guangdong Province (Grant Nos. 2019KQNCX043, 2020ZDZX1045 and 2021KCXTD026) , China Agriculture Research System of MOF and MARA, Guangdong Provincial Special Fund for Modern Agriculture Industry Technology Innovation Teams (Grant No. 2022KJ146) . We thank TopEdit ( www.topeditsci.com ) for linguistic assistance during the preparation of this manuscript.

语种：英文

外文关键词：Pinctada fucata martensii; Hypoxia; Digestion; Oxidative stress; Immune function; Energy metabolism

外文摘要：The activity of enzymes involved in digestion, energy metabolism, oxidative stress regulation, and immune function in the pearl oyster (Pinctada fucata martensii) was determined at 0, 0.5, 1, 2, 5, 10, 15, and 25 d following exposure to HG and NG to characterize the effects of hypoxia on pearl oysters. The protease activity was significantly higher in HG than in NG at 0.5 and 1 d but significantly lower in HG than in NG at 2, 5, 10, 15, and 25 d. The activity of amylase, lipase, and PK was significantly lower in HG than in NG at 0.5, 1, 2, 5, 10, 15, and 25 d. T-AOC and activity of CAT and LDH were significantly higher in HG than in NG at 0.5, 1, 2, and 5 d but significantly lower in HG than in NG at 10, 15, and 25 d. SOD and GPx activity was significantly higher in HG than in NG at 0.5, 1, 2, and 5 d and significantly lower in HG than in NG at 15 and 25 d. LPO content was significantly higher in HG than in NG at 0.5, 1, 2, 5, 10, 15, and 25 d. AKP activity was significantly lower in HG than in NG at 0.5, 1, 10, 15, and 25 d, but no differences in AKP activity were observed between HG and NG at 2 and 5 d. ACP activity was significantly higher in HG than in NG at 0.5 d and significantly lower in HG than in NG at 1, 2, 5, 10, 15, and 25 d. These changes in digestion, energy metabolism, antioxidant capacity, and immune defense promoted adaptation to early hypoxia. Long-term hypoxia decreased the survival rate of pearl oysters by decreasing involved in digestion, energy metabolism, immune responses, and oxidative stress regulation.