17-P045 Stem cell system in sexual and asexual reproduction of Enchytraeus japonensis (Oligochaeta, Annelida)
نویسندگان
چکیده
Stem cell system in sexual and asexual reproduction of Enchytraeus japonensis (Oligochaeta, Annelida) Chikako Yoshida-Noro, Makoto Takeo, Mutsumi Sugio, Shishin Kawamoto, Shin Tochinai Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, Narasihno, Chiba, Japan Department of Dermatology, New York University School of Medicine, New York, United States Department of Natural History Sciences, Faculty of Science, Hokkaido University, Sapporo, Hokkaido, Japan
منابع مشابه
17-P046 Coordinating neural crest stem cell migration with cell specification
Stem cell system in sexual and asexual reproduction of Enchytraeus japonensis (Oligochaeta, Annelida) Chikako Yoshida-Noro, Makoto Takeo, Mutsumi Sugio, Shishin Kawamoto, Shin Tochinai Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, Narasihno, Chiba, Japan Department of Dermatology, New York University School of Medicine, New York, United States De...
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Enchytraeus japonensis is a small oligochaete that reproduces mainly asexually by fragmentation (autotomy) and regeneration. As sexual reproduction can also be induced, it is a good animal model for the study of both somatic and germline stem cells. To clarify the features of stem cells in regeneration, we investigated the proliferation and lineage of stem cells in E. japonensis. Neoblasts, whi...
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Although regeneration studies are useful for understanding how organs renew, little information is available about regeneration of reproductive organs and germ cells. We here describe the behavior of germ-cell precursors during regeneration of the oligochaete annelid worm Enchytraeus japonensis, which has the remarkable feature of undergoing asexual (by fission) and sexual reproduction . We fir...
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Asexual reproduction in the annelid Enchytraeus japonensis entails the regeneration of primordial germ cells from body parts that lack gonads. New primordial germ cells arise from piwi-expressing germline stem cells that are distinct from somatic stem cells.
متن کاملBipolar head regeneration induced by artificial amputation in Enchytraeus japonensis (Annelida, Oligochaeta).
The Enchytraeida Oligochaeta Enchytraeus japonensis propagates asexually by spontaneous autotomy. Normally, each of the 5-10 fragments derived from a single worm regenerates a head anteriorly and a tail posteriorly. Occasionally, however, a head is formed posteriorly in addition to the normal anterior head, resulting in a bipolar worm. This phenomenon prompted us to conduct a series of experime...
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عنوان ژورنال:
- Mechanisms of Development
دوره 126 شماره
صفحات -
تاریخ انتشار 2009