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首页> 外文期刊>Harmful Algae >The fate of cryptophyte cell organelles in the ciliate Mesodinium cf. rubrum subjected to starvation
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The fate of cryptophyte cell organelles in the ciliate Mesodinium cf. rubrum subjected to starvation

机译：纤毛中生的隐生植物细胞器的命运。饱受饥饿的风疹

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摘要

Mesodinium rubrum Lohmann is a mixotrophic ciliate and one of the best studied species exhibiting acquired phototrophy. To investigate the fate of cryptophyte organelles in the ciliate subjected to starvation, we conducted ultrastructural studies of a Korean strain of M. cf. rubrum during a 10 week starvation experiments. Ingested cells of the cryptophyte Teleaulax amphioxeia were first enveloped by ciliate membrane, and then prey organelles, including ejectisomes, flagella, basal bodies and flagellar roots, were digested. Over time, prey nuclei protruded into the cytoplasm of the ciliate, their size and volume increased, and their number decreased, suggesting that the cryptophyte nuclei likely fused with each other in the ciliate cytoplasm. At 4 weeks of starvation, M. cf. rubrum cells without cryptophyte nuclei started to appear. At 10 weeks of starvation, only two M. cf. rubrum cells still possessing a cryptophyte nucleus had relatively intact chloroplast-mitochondria complexes (CMCs), while M. cf. rubrum cells without cryptophyte nuclei had a few damaged CMCs. This is the first ultrastructural study demonstrating that cryptophyte nuclei undergo a dramatic change inside M. cE rubrum in terms of size, shape, and number following their acquisition. (C) 2016 Elsevier B.V. All rights reserved.
机译：鲁氏中膜罗曼（Mesodinium rubrum Lohmann）是一种混合营养的纤毛虫，是表现出获得性光养的最佳研究物种之一。为了调查遭受饥饿的纤毛中隐生植物细胞器的命运，我们对韩国产的M. cf.菌株进行了超微结构研究。在10周的饥饿实验中观察到风疹。首先，将被摄食藻类两栖动物的食入细胞用纤毛膜包裹，然后消化猎物细胞器，包括射血菌，鞭毛，基体和鞭毛根。随着时间的流逝，猎物核突入纤毛虫的细胞质中，它们的大小和体积增加，而它们的数量减少，这表明隐生菌核可能在纤毛虫的细胞质中彼此融合。饥饿4周后，M。cf.没有隐生植物核的红细胞开始出现。饥饿10周时，只有两个M. cf.仍然具有隐生植物核的红细胞具有相对完整的叶绿体-线粒体复合物（CMCs），而M.没有隐生植物核的红细胞有一些受损的CMC。这是第一项超微结构研究，表明隐孢子虫核在获得后，在大小分布，形状和数量方面都发生了巨大变化。 （C）2016 Elsevier B.V.保留所有权利。

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  • 来源
    《Harmful Algae》 |2016年第11期|19-30|共12页
  • 作者

    Nam Seung Won; Park Jong Woo; Yih Wonho; Park Myung Gil; Shin Woongghi;

  • 作者单位

    Chungnam Natl Univ, Dept Biol, Deajeon 34134, South Korea|Chonnam Natl Univ, Dept Oceanog, LOHABE, Gwangju 61186, South Korea|Nakdonggang Natl Inst Biol Resources, Bioresources Culture Collect Div, Sangju 37242, South Korea;

    Kunsan Natl Univ, Dept Oceanog, Kunsan 54150, South Korea|Natl Inst Fisheries Sci, Ocean Climate & Ecol Res Div, Busan 46083, South Korea;

    Kunsan Natl Univ, Dept Oceanog, Kunsan 54150, South Korea;

    Chonnam Natl Univ, Dept Oceanog, LOHABE, Gwangju 61186, South Korea;

    Chungnam Natl Univ, Dept Biol, Deajeon 34134, South Korea;

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  • 正文语种 eng
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  • 关键词

    Mesodinium cf. rubrum; Teleaulax amphioxeia; Nucleus; Nuclear fusion; Acquired phototrophy;

    机译：中速cf.风疹;两栖Teleaulax;核;核融合;获得性光化;

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