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首页> 外文期刊>Acta Physiologiae Plantarum >Cytophysiological impacts of Metosulam herbicide on Vicia faba plants
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Cytophysiological impacts of Metosulam herbicide on Vicia faba plants

机译：元磺草胺除草剂对蚕豆的细胞生理影响

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摘要

The hazardous potential of the Metosulam herbicide, particularly the cytogenetic and physiological effects on Vicia faba cv Assuit 25 plants has been studied. The results showed that the mitotic index (MI) decreased and chromosomal aberrations frequency increased by increasing of the concentration of herbicide and prolonging the duration of treatment. In the roots treated with highest concentration used (1 × 10~(-5) %) for 24 h, complete inhibition of cell division was observed. The chromosomal anomalies include chromosomal bridges and breaks that are regarded were indicative of a mutagenic potential of the herbicide. Seedling growth (fresh and dry weight) adversely affected as the duration and concentration of Metosulam herbicide increased. Soluble sugars, soluble proteins, total free amino acids and photosynthetic pigment content decreased significantly in root, stem and leaves of Vicia faba with increasing both the herbicide concentration and treatment duration. In contrast, proline content washighly accumulated, especially at the highest concentration (10~(-4) %) and the longest duration used (24 h). The results of antioxidant enzymes reveal that while the peroxidase activity decreased by increasing the concentration of herbicide and duration, the activities of catalase and ascorbate peroxidase increased.
机译：研究了Metosulam除草剂的潜在危害，特别是对蚕豆Vicia faba cv Assuit 25植物的细胞遗传学和生理学影响。结果表明，随着除草剂浓度的增加和治疗时间的延长，有丝分裂指数（MI）降低，染色体畸变频率增加。在使用最高浓度（1×10〜（-5）％）处理的根系中处理24小时，观察到完全抑制了细胞分裂。染色体异常包括染色体桥和断裂，这些断裂被认为指示了除草剂的诱变潜力。随Metosulam除草剂的持续时间和浓度增加，幼苗生长（新鲜和干重）受到不利影响。随着除草剂浓度和处理时间的增加，蚕豆根，茎和叶中的可溶性糖，可溶性蛋白，总游离氨基酸和光合色素含量显着下降。相反，脯氨酸含量高，特别是在最高浓度（10〜（-4）％）和最长使用时间（24h）时。抗氧化酶的结果表明，虽然通过增加除草剂的浓度和使用时间会降低过氧化物酶的活性，但过氧化氢酶和抗坏血酸的过氧化物酶的活性却增加了。

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