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首页> 外文期刊>Journal of King Saud University >DNA damage in Cicer plant grown on soil polluted with heavy metals
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DNA damage in Cicer plant grown on soil polluted with heavy metals

机译：在重金属污染的土壤中生长的 Cicer 植物的DNA损伤

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摘要

In recent years industrialization is growing rapidly due to which the pollution load in water, air and soil is increasing day by day. Heavy metal pollution of the soil has raised concern in recent years due to its possible impact not only on human health but also on the plant system. To understand the consequences on plant systems, in the present study we cultivated the Cicer plant in soil polluted with heavy metals (Cd, Pb, Cr and Zn) collected from the Jhansi City of Uttar Pradesh, India with a geographical area of 502.75 thousand hectares. Seeds of Cicer were germinated in polluted soil sites such as T1 (Garden Soil, Control); T2 (Bharat Heavy Electrical Limited (BHEL)-Industrial); T3 (BHEL-Agricultural); T4 (Bijouli-Industrial); T5 (Bijouli-Agricultural). The effect of soil polluted with the heavy metals was analyzed by studying the percentage of seed germination, radicle length (RL), mitotic index (MI) and chromosomal aberrations (CAs) in root tip meristems. The results revealed that polluted soil with heavy metals T2 (BHEL-Industrial site) and T4 (Bijouli-Industrial site) had a significant impeding effect on the root meristem activity in Cicer as noticed by the reduction in seed germination percentage and RL compared to the control. Additionally, the variation in the percentage of mitotic abnormalities was observed. In general, increased percentage of chromosomal aberrations was observed in root tip cells of seedlings grown in polluted soil. Among these abnormalities laggards, bridges, stickiness, precocious separation and fragments were the most common. The obtained results demonstrated that heavy metal polluted soils led to a significant MI reduction and CA increase in root tip meristems of Cicer .
机译：近年来，由于水，空气和土壤中的污染负荷日益增加，工业化发展迅速。近年来，土壤的重金属污染不仅对人类健康而且对植物系统都可能产生影响，因此引起了人们的关注。为了了解对植物系统的影响，在本研究中，我们在污染重金属（镉，铅，铬和锌）的土壤中种植了西塞植物，该土壤从印度北方邦的詹西市采集，地理面积为50.275万公顷。 Cicer的种子在受污染的土壤场所（例如T1（花园土壤，对照））发芽; T2（巴拉特重型电气有限公司（BHEL）-工业）; T3（BHEL-农业）; T4（Bijouli-Industrial）; T5（Bijouli-农业）。通过研究根尖分生组织中种子的发芽百分比，胚根长度（RL），有丝分裂指数（MI）和染色体畸变（CA），分析了重金属污染土壤的影响。结果表明，重金属为T2（BHEL-工业位点）和T4（Bijouli-工业位点）的土壤对Cicer的根分生组织活性具有显着的阻碍作用，与种子发芽率和RL相比，降低了。控制。另外，观察到有丝分裂异常百分比的变化。通常，在污染土壤中生长的幼苗的根尖细胞中观察到染色体畸变的百分比增加。在这些异常中，最常见的是落后，桥梁，粘性，过早分离和碎片。获得的结果表明，重金属污染的土壤导致显着的MI降低和CA根尖分生组织的增加。

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