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Evaluation of Phytoremediation Potential of Pteris vittata L. on Arsenic Contaminated Soil Using Allium cepa Bioassay
Bulletin of Environmental Contamination and Toxicology ( IF 2.7 ) Pub Date : 2021-06-25 , DOI: 10.1007/s00128-021-03291-8
Kiran Gupta 1 , Sudhakar Srivastava 2 , Gauri Saxena 1 , Amit Kumar 1
Affiliation  

The present study assessed the utility of Allium cepa based cyto-genotoxicity bioassays in evaluating the arsenic toxicity and remediation potential of Pteris vittata on contaminated soil of Lakhimpur-Kheri district. Untreated and P. vittata treated soil extracts were used for cyto-genotoxicity tests in A. cepa. Results showed that P. vittata extracted high concentration of arsenic, which ranged from 220 to 1420 mgkg−1 in different soils. Cyto-genotoxic assessment of A. cepa showed that extract of P. vittata treated soil had lower cyto-genotoxic effects as compared to untreated soil. A higher mitotic index (10%) while lower mitotic depression (29%), relative abnormality rate (10%), chromosomal aberrations (1%) and micronuclei (2%) were detected in root meristematic cells of A. cepa exposed to remediated soil extract in comparison to untreated soil. The studies provide a simple, rapid and economic cyto-genotoxicity bioassay tool for evaluating toxicity of contaminated soils of contaminated soils as well as revealed the phytoremdiation property of P. vittata against arsenic toxicity.



中文翻译:

使用洋葱洋葱生物测定法评价蕨类植物对砷污染土壤的植物修复潜力

本研究评估了基于洋葱 cepa的细胞遗传毒性生物测定法在评估Pteris vittata对 Lakhimpur-Kheri 地区污染土壤的砷毒性和修复潜力的效用。未经处理和P. vittata处理的土壤提取物用于A. cepa的细胞遗传毒性测试。结果表明,P. vittata提取的砷浓度较高,在不同土壤中的砷含量在220 到1420 mgkg -1之间。A. cepa的细胞遗传毒性评估表明P. vittata的提取物与未经处理的土壤相比,处理过的土壤具有较低的细胞遗传毒性作用。在暴露于修复的洋葱的根分生细胞中检测到较高的有丝分裂指数 (10%) 而较低的有丝分裂抑制 (29%)、相对异常率 (10%)、染色体畸变 (1%) 和微核 (2%)与未经处理的土壤相比,土壤提取物。这些研究提供了一种简单、快速和经济的细胞遗传毒性生物测定工具,用于评估受污染土壤的毒性,并揭示了P. vittata对砷毒性的植物修复特性。

更新日期:2021-06-25
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