Contributions on enhancing the copper uptake by using natural chelators, with applications in soil phytoremediation

Dumbravă, Anca; Birghilă, Semaghiul; Munteanu, M.

doi:10.1007/s13762-013-0467-x

Cited by 11 publications

(6 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[102-104], wheat (Triticumaestivum L.) [106], sweet and grain sorghum (Sorghum bicolor) [107,108], and smilo grass (Piptatherum miliaceum) [109]. The phytoremediation process can be assisted by natural chelators, which promote the bioavailability and adsorption of heavy metals, such as copper [138].…”

Section: Phytoremediationmentioning

confidence: 99%

Environmental Restoration of Metal-Contaminated Soils

2022

View full text Add to dashboard Cite

show abstract

Section: Phytoremediationmentioning

confidence: 99%

Environmental Restoration of Metal-Contaminated Soils

2022

View full text Add to dashboard Cite

show abstract

“…[102][103][104], wheat (Triticumaestivum L.) [106], sweet and grain sorghum (Sorghum bicolor) [107,108], and smilo grass (Piptatherum miliaceum) [109]. The phytoremediation process can be assisted by natural chelators, which promote the bioavailability and adsorption of heavy metals, such as copper [138].…”

Section: Phytoremediationmentioning

confidence: 99%

Remediation of Metal/Metalloid-Polluted Soils: A Short Review

2021

View full text Add to dashboard Cite

The contamination of soil by heavy metals and metalloids is a worldwide problem due to the accumulation of these compounds in the environment, endangering human health, plants, and animals. Heavy metals and metalloids are normally present in nature, but the rise of industrialization has led to concentrations higher than the admissible ones. They are non-biodegradable and toxic, even at very low concentrations. Residues accumulate in living beings and become dangerous every time they are assimilated and stored faster than they are metabolized. Thus, the potentially harmful effects are due to persistence in the environment, bioaccumulation in the organisms, and toxicity. The severity of the effect depends on the type of heavy metal or metalloid. Indeed, some heavy metals (e.g., Mn, Fe, Co, Ni) at very low concentrations are essential for living organisms, while others (e.g., Cd, Pb, and Hg) are nonessential and are toxic even in trace amounts. It is important to monitor the concentration of heavy metals and metalloids in the environment and adopt methods to remove them. For this purpose, various techniques have been developed over the years: physical remediation (e.g., washing, thermal desorption, solidification), chemical remediation (e.g., adsorption, catalysis, precipitation/solubilization, electrokinetic methods), biological remediation (e.g., biodegradation, phytoremediation, bioventing), and combined remediation (e.g., electrokinetic–microbial remediation; washing–microbial degradation). Some of these are well known and used on a large scale, while others are still at the research level. The main evaluation factors for the choice are contaminated site geology, contamination characteristics, cost, feasibility, and sustainability of the applied process, as well as the technology readiness level. This review aims to give a picture of the main techniques of heavy metal removal, also giving elements to assess their potential hazardousness due to their concentrations.

show abstract

“…The translocation factor (TF) was calculated following the method in [30]: Cd concentration in shoots/Cd concentration in roots. The bioconcentration factor (BCF) was calculated following the method in [31]: Cd concentration in the aerial part of the plant/Cd concentration in the nutrient solution.…”

Section: Determination Of CD Concentration the Translocation Factor And The Bioconcentration Factormentioning

confidence: 99%

Exogenous Hemin Confers Cadmium Tolerance by Decreasing Cadmium Accumulation and Modulating Water Status and Matter Accumulation in Maize Seedlings

et al. 2021

View full text Add to dashboard Cite

Cadmium (Cd) contamination harms plant growth and human health. The application of hemin (ferroprotoporphyrin IX) can effectively relieve abiotic stresses in plants. This work investigates the effects of hemin on alleviating Cd toxicity and enhancing Cd tolerance in maize seedlings. In this study, maize seedlings were cultivated in nutrient solutions, with a combination of CdCl2 (464 μmol L−1) and hemin (100 μmol L−1). We measured plant growth status, water status, Cd concentration, and Cd distribution in maize seedlings. The results indicated that Cd stress increased Cd accumulation in plants and inhibited plant growth. However, hemin alleviated the growth inhibition and improved water balance, root morphology, and root vitality under Cd stress. Additionally, hemin increased 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), total phenolic content, and phenylalanine ammonia lyase (PAL) activity to enhance tolerance to Cd stress. Hemin reduced Cd concentration, the translocation factor (TF), and the bioconcentration factor (BCF) in maize seedlings under Cd stress. Furthermore, hemin increased Cd concentrations in the cell wall and the soluble fraction of seedling roots, which helped reduce Cd transport from root to shoot. In summary, exogenous hemin could be used for alleviating adverse impacts on maize seedling induced by Cd stress.

show abstract

Contributions on enhancing the copper uptake by using natural chelators, with applications in soil phytoremediation

Cited by 11 publications

References 40 publications

Environmental Restoration of Metal-Contaminated Soils

Environmental Restoration of Metal-Contaminated Soils

Remediation of Metal/Metalloid-Polluted Soils: A Short Review

Exogenous Hemin Confers Cadmium Tolerance by Decreasing Cadmium Accumulation and Modulating Water Status and Matter Accumulation in Maize Seedlings

Contact Info

Product

Resources

About