Potential of Eucalyptus globulus for the phytoremediation of metals in a Moroccan iron mine soil—a case study

Rasafi, Taoufik El; Pereira, Ruth; Pinto, Glória; Gonçalves, Fernando; Haddioui, Abdelmajid; Ksibi, Mohamed; Römbke, Jörg; Sousa, José Paulo; Marques, Catarina R.

doi:10.1007/s11356-020-11494-5

Cited by 11 publications

(3 citation statements)

References 69 publications

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“…Because these elements are not hazardous metals, their harmful effects take a long time to manifest and can be taken by plants at any concentration. Other studies identical to the current study have been carried out in which the concentration of Fe and Cu elements was lower than international standards (Baldantoni et al 2014;El Rasa et al 2021;Lorestani et al 2011;Poschenrieder et al 2001). However, the ndings of this study will aid in the understanding of salicornia's heavy metal uptake and bioaccumulation to utilize this plant in a phytoremediation process to eliminate these metals from contaminated soils.…”

Section: Introductionsupporting

confidence: 64%

Effect of manure and biochar on the aluminum, copper, and iron bioaccumulation by Salicornia species in soil

Ashrafi,

Heidari,

Farzam

et al. 2023

Toxicol. Environ. Health Sci.

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Experiments were conducted to investigate the ability of two species of Salicornia persica and Salicornia perspolitana to extract heavy metals, including aluminum, iron, and copper. In this study, manure and biochar were applied to improve performance. The two species of S. persica and S. perspolitana were grown outdoor in experimental pots. The effect of experimental treatments including manure and biochar on the two species was investigated. The results showed that biochar signi cantly in uenced (P < 0.05) the accumulation of heavy metals in both S. persica and S. perspolitana. In biochar treatment, the values of heavy metals in roots and shoots were found to be 3327 mg/kg, 109.17 mg/kg for aluminum, 3527 mg/kg and 142.17 mg/kg for iron, and 73.93 mg/kg and 11.90 mg/kg for copper, respectively. In the manure treatment, the values of heavy metals in the roots and shoots were reported as 3993 mg/kg and 119.29 mg/kg for aluminum, 5542 mg/kg and 179.17 mg/kg for iron, and 78.67 mg/kg and 12.74 mg/kg for copper, respectively. In general, our ndings showed that using biochar and manure in the soil allowed heavy metals to be stabilized, which reduced heavy metal accumulation in both S. persica and S. perspolitana. Heavy metal accumulation was higher in S. perspolitana than in S. persica.

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Section: Introductionsupporting

confidence: 64%

Effect of manure and biochar on the aluminum, copper, and iron bioaccumulation by Salicornia species in soil

Ashrafi,

Heidari,

Farzam

et al. 2023

Toxicol. Environ. Health Sci.

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“…The increase in M-C was two times greater than non-ectomycorrhizal seedlings (NM-C) after 8 and 12 months of exposure to heavy metal contaminated soil (Figure 2). Other results have demonstrated an adverse effect of heavy metals on gas exchange parameters [25,62,63]. This was evaluated through analysis of maximum quantum yield of PSII photochemistry (F v /F m ), which is considered to be a critical parameter of plant photosynthetic performance and a useful tool for evaluating plant tolerance to heavy metal toxicity.…”

Section: Discussionmentioning

confidence: 99%

Water Relations, Gas Exchange, Chlorophyll Fluorescence and Electrolyte Leakage of Ectomycorrhizal Pinus halepensis Seedlings in Response to Multi-Heavy Metal Stresses (Pb, Zn, Cd)

et al. 2021

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The success of mine site restoration programs in arid and semi-arid areas poses a significant challenge and requires the use of high-quality seedlings capable of tolerating heavy metal stresses. The effect of ectomycorrhizal fungi on different physiological traits was investigated in Pinus halepensis seedlings grown in soil contaminated with heavy metals (Pb-Zn-Cd). Ectomycorrhizal (M) and non-ectomycorrhizal (NM) seedlings were subjected to heavy metals stress (C: contaminated, NC: control or non-contaminated) soils conditions for 12 months. Gas exchange, chlorophyll fluorescence, water relations parameters derived from pressure–volume curves and electrolyte leakage were evaluated at 4, 8 and 12 months. Ectomycorrhizal symbiosis promoted stronger resistance to heavy metals and improved gas exchange parameters and water-use efficiency compared to the non-ectomycorrhizal seedlings. The decrease in leaf osmotic potentials (Ψπ100: osmotic potential at saturation and Ψπ0: osmotic potential with loss of turgor) was higher for M-C seedling than NM-C ones, indicating that the ectomycorrhizal symbiosis promotes cellular osmotic adjustment and protects leaf membrane cell against leakage induced by Pb, Zn and Cd. Our results suggest that the use of ectomycorrhizal symbiosis is among the promising practices to improve the morphophysiological quality of seedlings produced in forest nurseries, their performance and their tolerance to multi-heavy metal stresses.

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“…The genus Eucalyptus sp. has been successfully used worldwide in both in vivo [22,23] and in vitro assays [24,25] in soils contaminated with heavy metals. Eucalyptus plantations, especially E. globulus are extensively spread in Portugal, for pulp production, mainly in 10-12 years rotations and currently occupying 812,000 ha in the mainland [26].…”

Section: Introductionmentioning

confidence: 99%

Soil Arsenic Toxicity Impact on the Growth and C-Assimilation of Eucalyptus nitens

et al. 2023

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The selection of adequate plants that can cope with species that can live in contaminated/degraded and abandoned mining areas is of utmost importance, especially for environmental management and policymakers. In this framework, the use of a fast-growing forestry species, such as Eucalyptus nitens, in the recovery of arsenic (As) from artificially contaminated soils during a long-term experiment was studied. Roots can accumulate to levels ranging between 69.8 and 133 μg g−1 for plants treated with 100 and 200 µg As mL−1, respectively, while leaves between 9.48 μg g−1 (200 As) and 15.9 μg g−1 (100 As) without apparent morphological damage and toxicity symptoms. The C-assimilation machinery performance revealed a gradual impact, as evaluated through some gas exchange parameters such as the net photosynthetic rate (Pn), stomatal conductance to H2O (gs), and transpiration rate (E), usually with the greater impacts at the highest As concentration (200 As), although without significantly impacting the PSII performance. The As effects on the uptake and translocation of Ca, Fe, K, and Zn revealed two contrasting interferences. The first one was associated with Zn, where a moderate antagonism was detected, whereas the second one was related to Fe, where a particular enrichment in leaves was noted under both As treatments. Thus, it seems to exist a synergistic action with an impact on the levels of the photosynthetic pigments in As-treated plant leaves, compared with control plants. E. nitens must be considered as an alternative when phytoremediation processes are put into practice in our country, particularly in areas with cool climatic conditions.

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Potential of Eucalyptus globulus for the phytoremediation of metals in a Moroccan iron mine soil—a case study

Cited by 11 publications

References 69 publications

Effect of manure and biochar on the aluminum, copper, and iron bioaccumulation by Salicornia species in soil

Effect of manure and biochar on the aluminum, copper, and iron bioaccumulation by Salicornia species in soil

Water Relations, Gas Exchange, Chlorophyll Fluorescence and Electrolyte Leakage of Ectomycorrhizal Pinus halepensis Seedlings in Response to Multi-Heavy Metal Stresses (Pb, Zn, Cd)

Soil Arsenic Toxicity Impact on the Growth and C-Assimilation of Eucalyptus nitens

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