EFFECTS OF THE FUNGICIDE TRIDEMORPH ON MITOSIS IN ALLIUM-CEPA

  • 1 January 1982
    • journal article
    • research article
    • Vol. 34  (135-) , 181-189
Abstract
A mitodepressive effect of Tridemorph on the meristematic cells of A. cepa was observed. This effect increases with the concentration of the fungicide and the length of treatment, until complete inhibition of cell division occurs under certain conditions. This chemical is a strong c-mitotic agent, although there are clear differences between its action and that of colchicine and other c-mitotic drugs. Other important features are the alterations observed in the development of the different mitotic phases depending on the dose employed. A high degree of chromosome contraction was observed since the cells are in prophase until they reach telophase. Multipolar anaphases and micronuclei, and anomalous chromosome separation and anaphase migration are other important modifications induced by the treatment on the development of mitosis.

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