Electron microscopic studies of giant nucleus-like structure formed by λ DNA introduced into the cytoplasma of Xenopus laevis fertilized eggs and embryos

Koichiro Shiokawa, Kosuke Tashiro, K. Yamana, Munefumi Sameshima

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

When bacteriophage λ DNA was injected into the cytoplasm of the fertilized egg of Xenopus laevis, giant nucleus-like structures were assembled around the injected DNA. These nucleus-like structures survived during cleavage and were partitioned into blastomeres at the blastula stage. The nucleus-like structures formed in the uncleaved fertilized eggs and the blastula cells were both surrounded by a bilayer nuclear membrane with nuclear pore complexes. The ultrastructural features of the λ DNA-induced nucleus-like structure were considerably different from those of the normal blastula nucleus: although the nuclear pore complexes appeared to be normal, the 'nucleoplasm' was much too homogeneous as compared with that of the normal nucleus.

本文言語英語
ページ(範囲)253-261
ページ数9
ジャーナルCell Differentiation
20
4
DOI
出版ステータス出版済み - 4 1987

All Science Journal Classification (ASJC) codes

  • 発生生物学

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