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Temperature-Dependent Fatty Acid Composition Change of Phospholipid in Steelhead Trout (Oncorhynchus mykiss) Tissues
Liu Chengyue1; Dong Shuanglin2; Zhou Yangen2; Shi Kunpeng; Pan Zhe; Sun Dajiang2; Gao Qinfeng2
2019
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
ISSN1672-5182
Volume18Issue:2Pages:519
AbstractIn this study, the changes of the fatty acid composition of phospholipid in different tissues (muscle, heart, brain and spleen) of steelhead trout (Oncorhynchus mykiss) were analyzed when the water temperature decreased gradually from 16 degrees C to 12 degrees C, 8 degrees C, 6 degrees C, 4 degrees C, 2 degrees C and 1 degrees C. Three fish individuals each tank (average weight 70.32 g +/- 9.12 g) were collected and used to analysis at each designed temperatures. At normal temperature (16 degrees C), the fatty acid composition of phospholipid of muscle and heart was similar each other. The highest concentration of saturate fatty acids (SFA) was found in the phospholipid of spleen. The brain phospholipid contained higher oleic acid (18:1n9) than the phospholipid of other tissues at 16 degrees C. When the environmental temperature decreased, the concentration of unsaturated fatty acids of phospholipids in all tissues increased, and accordingly the ratio pf the unsaturated to saturated fatty acids (U/S) and unsaturation index (UI) increased, indicating that steelhead trout can compensate temperature- dependent changes in membrane fluidity by remodeling the fatty acid composition of phospholipids. The changes in the fatty acid composition of phospholipid were tissue-specific. At the early stages of the experiment (16 degrees C to 8 degrees C), the fatty acid composition of phospholipid changed remarkably in muscle, heart, and spleen. When temperature decreased to less than 8 degrees C, an obvious response of phospholipid fatty acid was observed in all tissues. The change of phospholipid composition of steelhead trout tissues may be affected by both cold stress and starvation when the temperature decreased to 2 degrees C, and the change of phospholipid composition of muscle was very obvious.
DepartmentLMB
Keywordtemperature tissue phospholipid fatty acid steelhead trout Oncorhynchus mykiss
DOI10.1007/s11802-019-3775-z
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17866
Collection中科院海洋生物资源可持续利用重点实验室
Affiliation1.Ocean Univ China, Minist Educ, Key Lab Mariculture, Qingdao 266100, Shandong, Peoples R China
2.Chinese Acad Sci, South China Sea Inst Oceanol, Guangdong Prov Key Lab Appl Marine Biol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266235, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Liu Chengyue,Dong Shuanglin,Zhou Yangen,et al. Temperature-Dependent Fatty Acid Composition Change of Phospholipid in Steelhead Trout (Oncorhynchus mykiss) Tissues[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2019,18(2):519, 527.
APA Liu Chengyue.,Dong Shuanglin.,Zhou Yangen.,Shi Kunpeng.,Pan Zhe.,...&Gao Qinfeng.(2019).Temperature-Dependent Fatty Acid Composition Change of Phospholipid in Steelhead Trout (Oncorhynchus mykiss) Tissues.JOURNAL OF OCEAN UNIVERSITY OF CHINA,18(2),519.
MLA Liu Chengyue,et al."Temperature-Dependent Fatty Acid Composition Change of Phospholipid in Steelhead Trout (Oncorhynchus mykiss) Tissues".JOURNAL OF OCEAN UNIVERSITY OF CHINA 18.2(2019):519.
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