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首页> 外文期刊>Marine biology >Lipid and fatty acid profiles of gametes and spawned gonads of Arbacia dufresnii (Echinodermata: Echinoidea): sexual differences in the lipids of nutritive phagocytes
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Lipid and fatty acid profiles of gametes and spawned gonads of Arbacia dufresnii (Echinodermata: Echinoidea): sexual differences in the lipids of nutritive phagocytes

机译：配子的脂质和脂肪酸谱和腹膜Dufresnii（Echinodermata：Echinoidea）的生成的Gonads：营养吞噬细胞脂质的性差异

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Sea urchin gonads contain nutritive phagocytes (NP) that store nutrients such as protein, lipid and carbohydrates for use during the production of gametes. While there is some information on the role of protein, particularly major yolk protein (MYP), during gametogenesis, very little is known about the role of lipids and their component fatty acids. We compared the lipid and FA profile of mature Arbacia dufresnii gonads (intact), with gonads that had been induced to spawn (spawned) and their associated gametes. The total lipid concentration decreased in females from the intact to the spawned gonads, and with a minimum value in the eggs, whilst male intact and spawned gonads had similar lipid concentrations, with significantly lower lipid concentration only in the sperm. Sex was the main factor affecting FA profile in the gonads (intact, spawned) and gametes of A. dufresnii, with differences in both the variety of FA, their total concentration and proportion. Interestingly, sexual differences in FA profile of the gonads are due not only to the presence of mature gametes, but also due to the NP and gametes remaining after spawning. As male and female sea urchins have the same basic gonad wall and NP structure, and the same echinoferrin based system for deposition of the MYP in the NP, our study reveals an unexplored biochemical complexity in the lipids and fatty acids of the NP within sea urchin gonads that has implications for future research.
机译：海胆Gonads含有营养吞噬细胞（NP），该吞噬细胞（NP）储存蛋白质，脂质和碳水化合物等蛋白质，脂质和碳水化合物的生产过程中使用。虽然存在有关蛋白质，特别是主要的蛋白质（MYP）的作用的信息，但在配子发生期间，关于脂质和它们的组分脂肪酸的作用很少。我们比较了成熟的Arbacia Dufresnii Gonads（完整）的脂质和FA档案，并具有诱导的GONADS产卵（生成）及其相关的配子。从完整的卵产性的女性中的总脂质浓度降低，并且在卵中具有最小值，而雄性完整和生成的Gonads具有相似的脂质浓度，仅在精子中显着降低脂质浓度。性是影响GONADS（完整，生成）和A. dufresnii的配子的主要因素，具有差异的FA，它们的总浓度和比例。有趣的是，Gonads的FA个人资料的性差异不仅是由于成熟配子的存在，而且由于产卵后剩下的NP和配子也是如此。由于雄性和雌性海胆具有相同的基本Gonad墙和NP结构，以及在NP中沉积MyP的相同海螺素系统，我们的研究揭示了海胆内NP的脂质和脂肪酸的未开发的生化复杂性对未来研究有影响的Gonads。

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  • 来源
    《Marine biology》 |2019年第7期|96.1-96.15|共15页
  • 作者

    Enriqueta Diaz de Vivar M.; Zarate Erica V.; Rubilar Tamara; Epherra Lucia; Avaro Marisa G.; Sewell Mary A.;

  • 作者单位

    Univ Nacl Patagonia San Juan Bosco Fac Ciencias Nat Lab Quim Organismos Marinos Puerto Madryn Chubut Argentina;

    Univ Auckland Sch Biol Sci Auckland New Zealand;

    Ctr Estudio Sistemas Marinos CESIMAR CONICET Lab Oceanog Biol Puerto Madryn Chubut Argentina;

    Ctr Estudio Sistemas Marinos CESIMAR CONICET Lab Oceanog Biol Puerto Madryn Chubut Argentina;

    Univ Nacl Patagonia San Juan Bosco Fac Ciencias Nat Lab Quim Organismos Marinos Puerto Madryn Chubut Argentina;

    Univ Auckland Sch Biol Sci Auckland New Zealand;

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