Plant microtubule studies: past and present
Plant microtubule studies: past and present
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DOI：
10.1007/s10265-006-0063-y
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发表时间：
2007-01-01
影响因子：
2.8
通讯作者：
Mineyuki, Yoshinobu
中科院分区：
文献类型：
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作者：
Mineyuki, Yoshinobu
在这里，我简要回顾了植物微管研究的历史和形态学方面的陆地植物。微管是由微管蛋白形成的，其聚合构型表现为单线态、双线态和三重态微管。双微管出现在纤毛和鞭毛的轴突中，三微管出现在基体和中心体中。双微管和三微管在所有被子植物和一些没有鞭毛精子的裸子植物中都缺失。在有鞭毛精子的陆地植物中，向心中心体在精子发生过程中转化为基体。然而，在开花植物中，大多数雄性配子（精子）在没有纤毛或鞭毛的情况下被传递给卵子；因此，高等植物缺乏向心中心体和双、三重微管。开花植物生命周期中中心粒中心体的丢失可能影响了植物微管系统的进化。通过对陆生植物和开花植物有丝分裂装置的比较，揭示了从中心微管系统到非中心微管系统的进化过程。
Here, I briefly review historical and morphological aspects of plant microtubule studies in land plants. Microtubules are formed from tubulins, and the polymeric configurations appear as singlet, doublet, and triplet microtubules. Doublet microtubules occur in the axoneme of cilia and flagella, and triplet microtubules occur in the basal bodies and centrosomes. Doublet and triplet microtubules are lost in all angiosperms and some gymnosperms that do not possess flagellated sperm. In land plants with flagellated sperm, centriolar centrosomes transform into basal bodies during spermatogenesis. In flowering plants, however, most male gametes ( sperm) are conveyed to eggs without the benefit of cilia or flagella; thus, higher plants lack centriolar centrosome and doublet and triplet microtubules. The loss of centriolar centrosomes from the life cycle of flowering plants may have influenced the evolution of the plant microtubule system. Comparison of mitotic apparatuses in basal land plants and flowering plants illuminates the evolutionary transition from the centriolar microtubule system to the acentriolar microtubule system.