Assessment of trace element and macronutrient accumulation capacity of two native plant species in three different Egyptian mine areas for remediation of contaminated soils

Rizwan, Muhammad; Elshamy, Maha M.; Abdel-Aziz, Heba M. M.

doi:10.1016/j.ecolind.2019.105463

Cited by 6 publications

(3 citation statements)

References 48 publications

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“…Therefore, the combined plant-microbes method can improve the heavy metal resistance of plants and achieve an ideal remediation effect. In recent years, it has also been found the limited efficiency of phytoremediation with a single plant (Buscaroli et al, 2017;Rizwan et al, 2019;Hosseinniaee et al, 2022) and the co-planting pattern of complementary plants for metals enrichment may be more efficient. The co-plantation of Solanum nigrum with Quercus nuttallii or Quercus pagoda effectively improved the enrichment of cadmium (>40%) and zinc (>30%) (Qu et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Role of the rhizosphere bacterial community in assisting phytoremediation in a lead-zinc area

Xiao

Chen

et al. 2023

Front. Plant Sci.

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Heavy metals (HMs) contamination and vegetation destruction in the mining area caused by mining activities are severely increasing. It is urgent to restore vegetation and stabilize HMs. In this study, we compared the ability of HMs phytoextraction/phytostabilization of three dominant plants, including Artemisia argyi (LA), Miscanthus floridulus (LM), and Boehmeria nivea (LZ) in a lead-zinc mining area in Huayuan County (China). We also explored the role of the rhizosphere bacterial community in assisting phytoremediation using 16S rRNA sequencing technology. Bioconcentration factor (BCF) and translocation factor (TF) analysis showed that LA preferred accumulating Cd, LZ preferred accumulating Cr and Sb, and LM preferred accumulating Cr and Ni. Significant (p < 0.05) differences were found among the rhizosphere soil microbial communities of these three plants. The key genera of LA were Truepera and Anderseniella, that of LM were Paracoccus and Erythrobacter, and of LZ was Novosphingobium. Correlation analysis showed some rhizosphere bacterial taxa (e.g., Actinomarinicola, Bacillariophyta and Oscillochloris) affected some soil physicochemical parameters (e.g., organic matter and pH) of the rhizosphere soil and enhanced the TF of metals. Functional prediction analysis of soil bacterial community showed that the relative abundances of genes related to the synthesis of some proteins (e.g., manganese/zinc-transporting P-type ATPase C, nickel transport protein and 1-aminocyclopropane-1-carboxylate deaminase) was positively correlated with the phytoextraction/phytostabilization capacity of plants for heavy metals. This study provided theoretical guidance on selecting appropriate plants for different metal remediation applications. We also found some rhizosphere bacteria might enhance the phytoremediation of multi-metals, which could provide a reference for subsequent research.

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Section: Introductionmentioning

confidence: 99%

Role of the rhizosphere bacterial community in assisting phytoremediation in a lead-zinc area

Xiao

Chen

et al. 2023

Front. Plant Sci.

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“…The lack of topsoil, compaction, and a lack of vital nutrients are further detrimental concerns for vegetation in addition to high hazardous metal concentrations (Anic et al, 2010;Shrivastava & Kumar, 2015). Previous research demonstrated that some plants may thrive in these harsh settings and frequently could evolve into metal-tolerant ecotypes, particularly in the vicinity of mining operations (Xiao et al, 2008;García-Lorenzo et al, 2009;Pérez-López et al, 2014;Rizwan et al, 2019;. The phytoremediation of mine tailings with high levels of heavy metals would bene t from the usage of these plant species.…”

Section: Introductionmentioning

confidence: 99%

Potentialities of Medicinal Indigenous taxa for accumulation of macro- and micro elements increasing nearby Abu-Tartur phosphate mining ore, Egypt

Elshamy

Al-Balawi²,

Ramadan³

2023

Preprint

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Background and Aims Some wild taxa (Astragalus vogalii, Sesbania sesban, Trigonella hamosa, Melilotus indicus, Senna italica, Bidens pilosa and Conyza bonariensis) growing around Abu-Tartur phosphate mining ore in Egypt, were conducted to identify species accumulation of Fe, Mn, Zn, Cu, Mo, Se, B, Pb, Cr, Cd, Ni, Ag, Si and Na in plants and soils. Methods These metals levels were measured by atomic spectroscopy techniques, including flame-AAS, GF-AAS, and ICP-AES. Results The bioavailability of trace elements to plants was affected by soil factors such as soil pH, organic matter (OM) content. Soil considered alkali soil (pH range from 7.4- 8.6) with low organic contents (1.26-1.80 %). By comparing the soil content around the phosphate mining area in the Western Desert as part of the extremely dry deserts range with the ideal agricultural soil content of macronutrients, it was found that there were low contents of them. Bioconcentration Factor, Translocation Factor (TF), Biological Accumulation Coefficient (BAC) and element accumulation index (EAI) were calculated for the studied metals associated with phosphate mining process. BF and BAC for all metals are more than unity. Conclusion Our study showed that these native plants with a high BF and low (TF) and have the potential for phytostabilization and will be used in phytoremediation of the metallic pollutants in soils after further research in accumulation mechanism of phosphate mining spoils.

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“…Hyperaccumulating plants exhibit metallic or metalloid elements in aerial tissues to levels that exceed usual physiological requirements for most plant species [ 15 ]. HM concentrations in tissues of such plants are commonly used to monitor environmental contamination resulting from iron mining [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Eco-biochemical responses, phytoremediation potential and molecular genetic analysis of Alhagi maurorum grown in metal-contaminated soils

et al. 2022

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Background Alhagi maurorum Medik. (camelthorn) is a dominant desert plant indigenous in various habitats, including the Western Desert of Egypt. The plant is especially prevalent in and around economic iron ore deposits. Nutrient and heavy metal levels in A. maurorum tissues and soil samples were assessed to identify associations between heavy metal levels in plants and soil. The objective was to evaluate this species as an indicator of heavy metal pollution. Photosynthetic pigments, protein, proline, alkaloids, flavonoids, 2,2-diphenyl-1-picrylhydrazylscavenging, reduced glutathione, malondialdehyde, antioxidant enzymes, and stress-related gene expression were assessed to determine their functional roles in metal stress adaptation in ultra- and molecular structure. Additionally, the molecular genetic variation in A. maurorum samples was assessed using co-dominant sequence-related amplified polymorphism (SRAP) and inter simple sequence repeats (ISSR). Results A substantial difference in enzymatic and non-enzymatic antioxidants of A. maurorum was observed in samples collected from three sites. A. maurorum is suited to the climate in mineralized regions. Morphologically, the stem shows spines, narrow leaves, and a reduced shoot system. Anatomically, modifications included a cuticle coating on leaves and stems, sunken stomata, a compact epidermis, and a thick cortex. Significant anatomical-physiological differences were observed with varying heavy metal soil content, antioxidative enzyme activities increased as a tolerance strategy, and glutathione levels decreased in response to heavy metal toxicity. Heavy metal accumulation also affected the expression of stress-related genes. The highest levels of expression of GST, G6PDH, 6PGD, nitrate reductase 1, and sulfate transporter genes were found in plants collected from site A1. However, auxin-induced protein exhibited its highest expression in plants collected from A2. Six SRAP combinations yielded 25 scoreable markers with a polymorphism rate of 64%, and 5 ISSR markers produced 11 bands with a polymorphism rate of 36.36% for three A. maurorum genotypes. The ME1xEM7 primer combinations provided the most polymorphic information content and resolving power, making it the most useful primer for differentiating A. maurorum genotypes. SRAP markers exhibited a higher diversity index (0.24) than ISSR markers (0.16). Conclusions A. maurorum displayed adaptive characteristics for heavy metal sequestration from mining site soils and is proposed as a strong candidate for phytoremediation.

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Assessment of trace element and macronutrient accumulation capacity of two native plant species in three different Egyptian mine areas for remediation of contaminated soils

Cited by 6 publications

References 48 publications

Role of the rhizosphere bacterial community in assisting phytoremediation in a lead-zinc area

Role of the rhizosphere bacterial community in assisting phytoremediation in a lead-zinc area

Potentialities of Medicinal Indigenous taxa for accumulation of macro- and micro elements increasing nearby Abu-Tartur phosphate mining ore, Egypt

Eco-biochemical responses, phytoremediation potential and molecular genetic analysis of Alhagi maurorum grown in metal-contaminated soils

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