【摘 要】
：
The lipid and fatty acid composition of the pearl oyster Pinctada fucata,in different shell length specifications,in different condition index and in various tissues which were adductor muscle,mantle,
【机 构】
：
South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510300,Gu
【出 处】
：
“全球变化下的海洋与湖沼生态安全”学术交流会
论文部分内容阅读
The lipid and fatty acid composition of the pearl oyster Pinctada fucata,in different shell length specifications,in different condition index and in various tissues which were adductor muscle,mantle,gill and visceral mass,were analyzed by GC-MS to clarify its lipid content and to estimate the possible main lipid storage site.The major fatty acid in all samples were,C16:0 and C18:0 as saturated fatty acids(SFA);C16:1(n-7),C18:1(n-7)and C18:1(n-9)as monounsaturated fatty acids(MUFA);and C20:4(n-6)(arachidonic acid: AA),C20:5(n-3)(eicosapentaenoic-EPA),and C22:6(n-3)(docosahexaenoic-DHA)as polyunsaturated fatty acids(PUFA).Relative percentage of lipid content of the mantle and visceral mass were 40.75%and 42.03%,significantly higher than 14.48%of adductor muscle and 17.15%of gill.Experimentally measured that adductor muscle had 16 types of fatty acid,mantle and gill had 18 types of fatty acid,and however visceral mass had 21 types of fatty acid,which types of fatty acid was overall than the other three tissues.Similarly,total fatty acids,SFA,MUFA of visceral mass were significantly higher than the other three tissues,PUFA were also significantly higher than the adductor muscle and the mantle.And the lipid and fatty acid composition of different shell length specifications and condition index were showed no significant differences.These results suggest that the visceral mass is the major site for Pinctada fucata to store lipid.And when performed fatty acid analysis such as food sources stadies of Pinctada fucata,there are no significant effect in different shell length and condition index.And its high content of PUFA such as DHA and EPA will have great research and application prospects.
其他文献
Concentration of soluble proteins,soluble sugars and ions(Ca2+,Mg2+,Na+,Cl-and NO)derived from different tissues and organs was measured to evaluate the response of Apostichopus japonicus(Shuiyuan NO.
Sea urchins were stocked at a density of 15(D15),30(D30),45(D45)and 60(D60)urchin/cage(0.2×0.3×0.4 m3)in a laboratory culture environment for 16 months.The body weight(BW)growth was monitored at an in
We studied the diel expression pattern of PAX6(a structural gene that is commonly involved in the eye development and photoreception of eye forming animals)and the effects of light and covering behavi
When infected by the Vibrio splendidus,the sea cucumber Apostichopus japonicus invokes an innate immune response that protects the species from pathogenic attack.MicroRNAs have emerged as key players
以杭州湾南岸滩涂养殖为例，对滩涂养殖过程中出现的环境质量恶化、生物病原滋生及食品安全隐忧等问题进行了分析，基于生态学原理提出了滩涂养殖的生态学调控对策。在有效控制外源污染的同时，通过人工湿地生态工程技术调控养殖池塘生态系统结构，恢复自然、健康与稳定的水生生态系统功能，增强对外界干扰的缓冲能力，使水生生态系统处于良性与可持续循环状态，是滩涂池塘生态调控的最佳途径。综合运用生态调控技术是改善滩涂养殖生
为了了解长江口滩涂的环境状况以及对后期长江口滩涂的生态修复提供科学依据,本次调查了长江口2012年9月、10月、11月和12月四个月份的滩涂底栖生物种类组成与数量分布特点,调查研究方法依照《全国海岸带调查简明规程》中的规定进行,在不同的植被类型及光滩中采样,样方为0.25 m × 0.25 m的地下30 cm,所采泥样置于40目筛网内用水淘洗,获取大型底栖动物标本用Shannon-Wiener多样
别藻蓝蛋白是藻胆蛋白中的一种,除了作为光合作用捕光天线吸收和高效传递光能外,它也是细胞内的贮存蛋白.别藻蓝蛋白具有优良的荧光特性,在免疫组化、荧光免疫分析等领域已实现了应用.在大肠杆菌中,通过构建嗜热蓝藻别藻蓝蛋白的生物合成途径,我们实现了别藻蓝蛋白α亚基和β亚基的组合生物合成.本文比较了别藻蓝蛋白的热稳定性,利用定点突变技术,初步探讨了别藻蓝蛋白β亚基(holo-apcB)热稳定性的分子基础,主
Aestivation is an adaptation of the sea cucumber Apostichopus japonicus to high temperature.To date,however,little is known about the intrinsic mechanisms of A.japonicus to cope with the rising temper
The copepod Tigriopus japonicus has a wide geographical distribution and is regarded as a model species for marine ecotoxicology.Here,through a multigeneration life-cycle test,T.japonicus were exposed
Dumping area capacity is mainly affected by the hydrodynamic process(tidal current,storm surges and waves,etc.)and the size of dumping area.Combining with years of dumping amount and depth,discussed t