Differential utilization of biochemical components during larval development of the spider crab Maja brachydactyla (Decapoda: Majidae)
Differential utilization of biochemical components during larval development of the spider crab Maja brachydactyla (Decapoda: Majidae)
复制标题
DOI：
10.1007/s00227-010-1499-0
复制
发表时间：
2010-07
期刊：
影响因子：
2.4
通讯作者：
M. Andrés;A. Estévez;F. Hontoria;G. Rotllant
中科院分区：
文献类型：
--
作者：
M. Andrés;A. Estévez;F. Hontoria;G. Rotllant
本文研究了短趾真夜蛾Maja brachydactylaBalss，1922幼虫发育过程中脂类、脂肪酸、脂溶性维生素、氨基酸和矿物质的变化，以提供其个体发育的信息，并评估可能的营养缺陷和限制。用富集卤虫作为食物，分析了四个不同批次从孵化到变态的情况。培养的幼虫是在一个良好的营养条件，证实了整个个体发育的连续脂质积累。多不饱和脂肪酸（PUFA）在发育过程中发生调节，以维持足够的ω-3脂肪酸基础水平（可能通过C20和C22逆向转化为C18 PUFA）。生育酚水平的变化表明其可能的作用，在多不饱和脂肪酸保护氧化。发育过程中必需氨基酸的平衡与卤虫的摄食状态无关，而是反映了个体发育的内在变化。幼体对必需矿物质的需求完全由富营养化卤虫提供。
Changes in lipid class, fatty acid, fat-soluble vitamins, amino acid and minerals were studied during larval development ofMaja brachydactylaBalss, 1922 in order to provide information of its ontogeny and evaluate possible dietary deficiencies and constraints. Four different batches were analyzed from hatching to metamorphosis using enrichedArtemiaas food. Cultured larvae were in a good nutritional condition as confirmed by the continuous lipid accumulation throughout ontogeny. A regulation of polyunsaturated fatty acids (PUFA) occurred during development in order to maintain adequate basal levels of ω-3 fatty acids (likely through a retro conversion of C20and C22into C18PUFA). Variations in the tocopherol levels indicated its possible role in PUFA protection against oxidation. Essential amino acid balance during development was not correlated with theArtemiafeeding regime, but rather reflected inherent variations of the own species ontogeny. Larval requirements in essential minerals were fully supplied by the enrichedArtemia.