Efficient Repair of DNA Damage Induced by Heavy Ion Particles in Meiotic Prophase I Nuclei of Caenorhabditis elegans

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概要

• 論文の詳細を見る

• The effects of heavy ion particle irradiation on meiosis and reproductive development in the nematode Caenorhabditis elegans were studied. Meiotic pachytene nuclei are significantly resistant to particle irradiation by the heavy ions carbon and argon, as well as to X-rays, but not UV, whereas diplotene to diakinesis stage oocytes and early embryonic cells are not. Chromosomal abnormalities appear in mitotic cells and in maturing oocytes irradiated with heavy ion particles during the diplotene to the early diakinesis stages, but not in oocytes irradiated during the pachytene stage. The pachytene nuclei of ced-3 mutants, which are defective in apoptosis, are similarly resistant to ionizing radiation, but pachytene nuclei depleted for Ce-atl-1 (ataxia-telangiectasia like 1) or Ce-rdh-1/rad-51 are more sensitive. Pachytene nuclei thus appear to effectively repair heavy ion-induced DNA damage by the meiotic homologous recombination system.

• 日本放射線影響学会の論文

著者

• Yoshida Shigeo

  Plant Science Center, RIKEN

• Takahashi Hideyuki

  Graduate School Of Life Sciences Tohoku University

• ABE TOMOKO

  Plant Functions Lab. RIKEN

• ABE Tomoko

  Institute of Physical and Chemical Research

• TAKANAMI Takako

  Graduate School of Life Sciences, Tohoku University

• HIGASHITANI Atsushi

  Graduate School of Life Sciences, Tohoku University

• HIGASHIBATA Akira

  Japan Aerospace Exploration Agency (JAXA)

• Abe T

  Plant Science Center Riken.

• ZHANG YONGZHAO

  Graduate School of Life Sciences, Tohoku University

• AOKI HIDETOSHI

  Graduate School of Life Sciences, Tohoku University

• HORIUCHI SABURO

  School of Medicine, Iwate Medical University

• Zhang Y

  Graduate School Of Life Sciences Tohoku University

• Aoki Hidetoshi

  Graduate School Of Life Sciences Tohoku University

• Horiuchi Saburo

  School Of Medicine Iwate Medical University

• Yoshida Shigeo

  Plant Functions Lab. The Inst. Of Phys. And Chem. Res. (riken)

• Higashibata Akira

  Kagoshima University Graduate School Of Medical And Dental Sciences Space Environmental Medicine

• Higashitani Atsushi

  Graduate School Of Life Sciences Tohoku Univ.

• Zhang Yongzhao

  Graduate School Of Life Sciences Tohoku University

• Yoshida S

  Plant Science Center Riken.

• Takahashi Hideyuki

  Graduate School Of Agricultural And Life Sciences The University Of Tokyo

• Tsuji Hiroyuki

  National Agricultural Research Center For Hokkaido Region (narch)

• Higashibata Akira

  Space Utilization Research Center National Space Development Agency Of Japan (nasda)

• Takanami Takako

  Graduate School Of Life Sciences Tohoku Univ.

• Abe Tomoko

  Plant Function Laboratory Institute Of Physical And Chemical Research

• Yoshida Shigeo

  Plant Function Laboratory The Institute Of Physical And Chemical Research (riken)

• Yoshida Shigeo

  Plant Funct. Lab.

• Takahashi Hirokazu

  Laboratory Of Plant Molecular Genetics Graduate School Of Agricultural And Life Sciences The Univers

• Takahashi Hirokazu

  School Of Agriculture Meiji University

• Higashibata Akira

  Graduate School Of Life Sciences Tohoku University

• Takahashi Hirokazu

  Laboratory Of Plant Molecular Genetics Graduate School Of Agricultural And Life Sciences The University Of Tokyo

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