The spines of the centric diatomCorethron criophilum: Light microscopy of vegetative cell division

RichardM. Crawford; Friedel Hinz

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The spines of the centric diatomCorethron criophilum: Light microscopy of vegetative cell division

机译：中心硅藻的棘：营养细胞分裂的光学显微镜

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As part of a study of the biology of the marine planktonic centric diatomCorethron criophilum, cells have been followed through the vegetative cell cycle from immediately before cytokinesis until separation of the two daughter cells. After cytoplasmic cleavage, which lasts 30 min, each of the daughter cells becomes shorter and leaves space for the spines to develop on each of the new hypovalves. The relationship of the two cingula of each cell remains static for approximately 12 h while the new valves are developed. Expansion of both of the daughter cells in the pervalvar axis then withdraws the girdles from one another thus revealing the mature spines of the new hypovalves which now spring out to assume their final positions. The function of the cingulum in protecting and releasing the spines in this diatom is discussed.

机译：作为海洋浮游生物中心硅藻Corethron criophilum生物学研究的一部分，从胞质分裂之前到两个子细胞分离，细胞一直被跟踪到营养细胞周期。在持续 30 分钟的细胞质切割后，每个子细胞变短，并为棘在每个新的下瓣膜上发育留出空间。在开发新瓣膜时，每个细胞的两个扣带的关系保持静止约12小时。然后，两个子细胞在全卵轴上的扩张将腰带彼此撤出，从而揭示了新的下瓣膜的成熟棘，这些棘现在弹出来承担它们的最终位置。讨论了扣带在保护和释放该硅藻中的棘中的作用。

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《european journal of phycology》 |1995年第2期|95-105|共页
作者
RichardM. Crawford; Friedel Hinz;
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正文语种英语
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关键词
Cell division; cingulum; Corethron; diatoms; light microscopy; spines;

机译：细胞分裂;扣带;Corethron;硅藻;光学显微镜;刺;

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The spines of the centric diatomCorethron criophilum: Light microscopy of vegetative cell division

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