Summary
Dry and presoaked seeds ofNigella damascena were treated with aqueous extracts of the mushroomPaxillus involutus. At the first mitosis after the onset of germination, metaphase chromosomes showed damage independent of the origin of the mushrooms. The damaging substance(s) is (are) thermostable. Except a few achromatic gaps, all the lesions observed are of the chromosome type, i.e. are induced at the pre-synthetic G1 stage.
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Gilot-Delhalle, J., Moutschen, J. & Moutschen-Dahmen, M. Chromosome-breaking activity of extracts of the mushroomPaxillus involutus Fries ex Batsch. Experientia 47, 282–284 (1991). https://doi.org/10.1007/BF01958161
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DOI: https://doi.org/10.1007/BF01958161