title: Phytoremediation of lead-contaminated soil by Sinapis arvensis and Rapistrum rugosum.
abstract: Nowadays, public concern relating to ecological deleterious effects of heavy metals is on the rise. To evaluate the potential of Rapistrum rugosum and Sinapis arvensis in lead- contaminate phytoremediate, a pot culture experiment was conducted. The pots were filled by soil treated with different rates of leadoxide (PbO) including 0 (control), 100, 200, 300, 400, and 500 mg Pb per 1 kg soil. Germinated seeds were sown. Surprisingly, with increasing concentration of Pb, dry weight of R. rugosum and S. arvensis did not decrease significantly. In both of species, the concentration of Pb was higher in roots than shoots. In general, S.arvensis was absorbed more Pb compared to R. rugosum. The results revealed high potential of R. rugosum and S. arvensis in withdrawing Pb from contaminated soil. For both species, a positive linear relation was observed between Pb concentration in soil and roots. However, linear relationship was not observed between Pb concentration in the soil and shoots. Although both species test had low ability in translocation Pb from roots to shoots but they showed high ability in uptake soil Pb by roots. Apparently, these plants are proper species for using in phytoremediation technology.
authors.affiliation: a Department of Agriculture , Mashhad Branch, Islamic Azad University , Mashhad , Iran.
authors.forename: Abolghasem
authors.initials: A
authors.lastname: Saghi
authors.affiliation: a Department of Agriculture , Mashhad Branch, Islamic Azad University , Mashhad , Iran.
authors.forename: Mohammad Hassan
authors.initials: MH
authors.lastname: Rashed Mohassel
authors.affiliation: a Department of Agriculture , Mashhad Branch, Islamic Azad University , Mashhad , Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Parsa
authors.affiliation: b Department of Agronomy and Plant Breeding , College of Agriculture, University of Birjand , Birjand , Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Hammami
mesh_terms: D001673:Biodegradation, Environmental; D019607:Brassicaceae / Q000737:chemistry / Q000378:metabolism*; D052918:Environmental Restoration and Remediation / Q000295:instrumentation / Q000379:methods*; D007854:Lead / Q000032:analysis / Q000378:metabolism*; D019216:Metals, Heavy; D018517:Plant Roots / Q000737:chemistry / Q000378:metabolism; D031226:Sinapis / Q000737:chemistry / Q000378:metabolism*; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*
chemical_list: D019216:Metals, Heavy; D012989:Soil Pollutants; D007854:Lead
keywords: Rapistrum rugosum; Sinapis arvensis; heavy metals; lead; phytoremediation technology