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Company: Lucart S.p.A
Catalog#: 864043
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Isolation of Fucus serratus Gametes and Cultivation of the Zygotes
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2017-07-20
[Abstract]  Zygotes of the Fucale species are a powerful model system to study cell polarization and asymmetrical cell division (Bisgrove and Kropf, 2008). The Fucale species of brown algae grow in the intertidal zone where they reproduce by releasing large female eggs and mobile sperm in the surrounding seawater. The gamete release can be induced from sexually mature fronds in the laboratory and thousands of synchronously developing zygotes are easily obtained. In contrast to other eukaryotic models, such as land plants (Brownlee and Berger, 1995), the embryo is free of maternal tissues and therefore readily amenable to pharmacological approaches. The zygotes are relatively large (up to 100 µm in diameter), facilitating manipulations and imaging studies. During the first hours of zygote development, ... [摘要]  Fucale物种的合作伙伴是研究细胞极化和不对称细胞分裂的强大模型系统(Bisgrove和Kropf,2008)。棕色藻类的Fucale种类在潮间带中生长,通过在周围海水中释放大的雌性卵和移动精子繁殖。配子释放可以从实验室的性成熟叶子诱导,并且容易获得成千上万的同步发育的合子。与其他真核生物模型(如陆地植物(Brownlee和Berger,1995))相反,胚胎没有母体组织,因此很容易接受药理学方法。受精卵相对较大(直径可达100μm),便于操作和成像研究。在合子开发的第一个小时,轴与光线等外部线索的对准不稳定,可以通过不同方向的光梯度反转。在芽根出现前几小时,轴和极性的对齐是固定的,并且细胞相应地发芽。在这个阶段,合子通过细胞壁粘合剂材料的分泌(Kropf等人,1988;Hervé等人,2016)自然地附着在基质上。第一个细胞分裂发生在受精后约24小时,早期胚胎仅由两种细胞类型组成,其尺寸,形状和发育命运(,thallus细胞和根际细胞)不同(Bouget 等人,1998)。胚胎可以在实验室中成功培养数日(最多4周),并且在早期阶段具有不变的分裂模式,可以使组织学上追踪细胞谱系。
【背景】该协议提供了隔离Fucus spp的雄性和雌性配子的说明。 用于体外受精,并讨论如何监测所产生的受精卵和早期胚胎的发育。 这些说明是为了使用雌雄异株(Fucus ...

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