真菌毒素对植物细胞的遗传变化的影响。

Cytogenetic changes in plant cells as influenced by mycotoxins.

机构信息

Department of Plant Breeding and Seed Production, University of Agriculture and Technology, Olsztyn, Poland.

出版信息

Mycotoxin Res. 1991 Sep;7 Suppl 2:150-5. doi: 10.1007/BF03192201.

DOI:10.1007/BF03192201

Abstract

The effect of mycotoxins DON, DAS and F-2 on actively dividing cells of cereals and field bean was studied. In general, mycotoxins resulted in a decrease of mitotic activity. However, the F-2 treatment increased the mitotic index in rye. DON appeared a strong inhibitor of cell divisions in wheat and field bean. DAS retarded divisions at the stage of methaphase and changes spiralization and colourabi1ity of metaphase chromosomes. The cytological picture of the DAS-treated cells indicates that this compound disturbs the functioning of the karyokinetic spindle leading to the formation of cells of multiplied number of chromosomes.

摘要

研究了真菌毒素 DON、DAS 和 F-2 对谷物和野豌豆活跃分裂细胞的影响。总的来说，真菌毒素导致有丝分裂活性下降。然而，F-2 处理增加了黑麦的有丝分裂指数。DON 对小麦和野豌豆的细胞分裂有很强的抑制作用。DAS 使中期分裂延迟，并改变中期染色体的螺旋化和着色性。用 DAS 处理的细胞的细胞学图像表明，该化合物扰乱了核分裂纺锤体的功能，导致形成染色体数目倍增的细胞。