Chromosomal Aberrations Induced by Pesticides in Meiotic Cells of Barley

摘要: Cytological observations on meitotic cells of barley plants (Hordeum vulgare) grown after seed treatment (1000 ppm, 12 hours), or seedling spraying (500 ppm), with one 15 pesticides (Herbicides: Alanap-3, Atrazine, Banvel-D, Cytrol, Embutox E, Hyvar X, Lorox, Monuron, Simazine; Insecticides: Endrin, Phosphamidon, Sevin; Insect chemosterilants: ENT-50612, Botran) indicated that all the were capable inducing chromosome aberrations and, in certain cases, abnormal cellular behavior, such as cytoplasmic furrowing. The chromosomal observed included stickiness, extreme clumping coales-cence (“chromatin bodies”), bridges and fragments micronuclei. In addition, asynchronous nuclear divisions observed. Chromosome meiotic C1 generation ranged from 0.26 to 66.50% C2 0 11.34%. seedlings 8.70%. Certain pesticide treatments produced which exceeded X-ray (5, 500 R) ethylmethanesulfonate (EMS, 1000 hours) used for comparative purposes.