Center for Biodiversity, Functional & Integrative Genomics (BioFIG), Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, rua do Campo Alegre s/n, 4169-007 Porto, Portugal.
Chemosphere. 2011 Oct;85(5):744-50. doi: 10.1016/j.chemosphere.2011.06.049. Epub 2011 Jul 7.
In this work, the phytoremediation potential of metalaxyl, a commonly used persistent, mobile and leachy fungicide, by Solanum nigrum L. plants was studied. The study revealed that this plant species can be used as an excellent metalaxyl phytoremediation tool, thus providing a cost effective and environmentally friendly clean technology for the decontamination of sites and effluents. As it can be sowed directly in the remediation site, is able to complete its life cycle without suffering major stress. Because it accumulates high amounts of the fungicide in the aboveground tissues, enables its concentration and proper disposal by cutting off the corresponding plant part. The study also suggests that the tolerance to metalaxyl is due to a suitable antioxidant response comprising proline accumulation and guaiacol peroxidase and glutathione-S-transferase enhanced activities, that reduce oxidative damage to the plant organs.
本工作研究了常用的持久性、移动性和淋溶性杀菌剂金属砜在龙葵植物中的植物修复潜力。研究表明，该植物物种可用作优异的金属砜植物修复工具，从而为场地和废水的去污提供具有成本效益且环境友好的清洁技术。由于它可以直接播种在修复现场，并且在没有遭受重大压力的情况下能够完成其生命周期。由于它在地上组织中积累了大量的杀菌剂，因此可以通过切断相应的植物部分来浓缩和适当处理。该研究还表明，对金属砜的耐受性是由于适当的抗氧化响应，包括脯氨酸积累和愈创木酚过氧化物酶和谷胱甘肽-S-转移酶活性增强，从而减少了对植物器官的氧化损伤。
