کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10933191 1093775 2010 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distribution and structural diversity of cilia in tadpole larvae of the ascidian Ciona intestinalis
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
Distribution and structural diversity of cilia in tadpole larvae of the ascidian Ciona intestinalis
چکیده انگلیسی
Accumulating evidence demonstrates that cilia play important roles in a variety of processes in embryogenesis. For functional survey of larval cilia at the cellular level, we exploited the simple cell organization of tadpole larvae in the ascidian Ciona intestinalis. Immunofluorescent microscopy showed distribution of cilia not only in previously described tissues but also in a subpopulation of ependymal cells in the sensory vesicle, gut primordium, papillae, apical trunk epidermal neurons, and the endodermal strand. Transmission electron microscopy revealed a variety of axonemal structures, including a 9 + 0 structure similar to vertebrate primary cilia, a 9 + 0 structure with electron-dense materials in the center, a 9 + 2 structure with no dynein arms, and an axoneme with a disorganized structure at the distal end. Extensive description of cilia in the present study gives important insights into the evolution of the ciliary structure and provides a basis for analysis of ciliary functions in establishment of chordate body plan.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Developmental Biology - Volume 337, Issue 1, 1 January 2010, Pages 42-62
نویسندگان
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