Letter | Published:

Delayed ‘Primary’ Effects in Chara vulgaris L. subjected to X-Rays


‘PRIMARY’ or ‘non-localized’ effects in the form of clumping of metaphase chromosomes or the sticking together of sister chromatids in cells that complete mitosis shortly after irradiation during the period when mitotic frequency is decreasing have already been described by numerous investigators.

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    Delay, C., Rev. Cyt. Biol. végét., 21, 3–4, 315 (1949).

  2. 2

    See discussion in Carlson, J. G., and Harrington, N. G., Rad. Res., 84 (1955).

  3. 3

    Moutschen, J., and Dahmen, M., Rev. Cyt. Biol. végét., 17, 3–4, 433 (1956).

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