Heavy Metal Content in<i>Erica andevalensis</i>: An Endemic Plant from the Extreme Acidic Environment of Tinto River and its Soils

Rodríguez, Núria; Amils, Ricardo; Jiménez‐Ballesta, Raimundo; Rufo, Lourdes; Fuente, Vicenta de la

doi:10.1080/15324980601074578

Cited by 41 publications

(33 citation statements)

References 9 publications

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“…This regional endemism has developed adaptative mechanisms to survive in extremely acid substrates with elevated concentrations of heavy metals Rodríguez et al 2007). …”

Section: Soil and Bioclimatic Featuresmentioning

confidence: 99%

Heavy Metal Pollution in Soils Around the Abandoned Mine Sites of the Iberian Pyrite Belt (Southwest Spain)

Fernández-Caliani

Barba-Brioso

González

et al. 2008

Water Air Soil Pollut

144

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This paper investigates the pollution load of selected trace elements in 32 soil samples collected around 21 different mining areas of the Iberian Pyrite Belt (Southwest Spain), integrating chemical data with soil parameters to help understand the partitioning and mobility of pollutants. The minesoils are depleted in acid neutralising minerals and show limiting physicochemical properties, including low pH values and very high anomalies of potentially hazardous metals. The total concentrations of As (up to 1,560 mg kg −1 ) and certain heavy metals (up to 2,874 mg kg −1 Cu, 6,500 mg kg −1 Pb, 6,890 mg kg −1 Zn, 62 mg kg −1 Hg and 22 mg kg −1 Cd) are two orders of magnitude above the soil background values. The close association of Cd and Zn with the carbonate content in limeamended minesoils suggests metal immobilisation through adsorption and/or co-precipitation mechanisms, after acid neutralisation, whereas As and Pb are similarly partitioned into the soil and mostly associated with iron oxy-hydroxides.

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“…This regional endemism has developed adaptative mechanisms to survive in extremely acid substrates with elevated concentrations of heavy metals Rodríguez et al 2007). …”

Section: Soil and Bioclimatic Featuresmentioning

confidence: 99%

Heavy Metal Pollution in Soils Around the Abandoned Mine Sites of the Iberian Pyrite Belt (Southwest Spain)

Fernández-Caliani

Barba-Brioso

González

et al. 2008

Water Air Soil Pollut

144

View full text Add to dashboard Cite

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“…It also grows in Portugal, where it has been found on sedimentary soils along São Domingos River, that carries acid water from an abandoned mine (Quental et al 2002). Its main interest relies on its potential use for soil reclamation and landscape restoration because it tolerates acidic and metal-contaminated soils (Soldevilla et al 1992;Abreu et al 2007;Rodríguez et al 2007). However, the evaluation of potential mechanisms for stress tolerance has been only partially performed (Rossini Oliva et al 2009a, b).…”

Section: Introductionmentioning

confidence: 99%

“…The variation in Cu contents of E. andevalensis grown was studied in mine waste affected sites (Asensi et al 1999;Rodríguez et al 2007) but plant tolerance mechanisms to enhanced Cu availability were not investigated. The aims of our study were to investigate E. andevalensis response to increasing Cu concentration through the analysis of uptake, accumulation and distribution in plant tissues, possible interactions with the uptake and transport of other essential elements and the effects of plant growth rate, concentration of photosynthetic pigments, amino acids and polyamines related to plant reaction to Custress conditions.…”

Section: Introductionmentioning

confidence: 99%

Uptake, localisation and physiological changes in response to copper excess in Erica andevalensis

et al. 2009

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Copper uptake, localisation and biochemical and physiological traits were studied in hydroponically-grown Erica andevalensis plants at different increasing concentrations of Cu (1 µM, 50 µM, 100 µM, 250 µM, and 500 µM). Increasing Cu concentration in the nutrient medium led to a significative reduction in plant growth rate, an increase in root Cu concentration, leaf photosynthetic pigments and root peroxidase activity. Copper accumulation followed the pattern roots>stems>leaves, a typical behaviour of metal-excluders. Copper treatments led to significant changes in the free amino acid composition in shoots and roots and the concentration of polyamines in shoots. Analysis by scanning electron microscopy coupled with elemental X-ray analysis (SEM-EDX) showed a partial restriction of upward Cu transport by root vascular tissues. In leaf tissues, Cu mostly accumulated in the abaxial epidermis, suggesting a mechanism of compartmentalization to restrict mesophyll accumulation. The toxic effects of excess Cu were avoided to a certain extent by root immobilization, tissue compartmentalization, synthesis of complexing amino acids and induction of enzymes to prevent oxidative damage are among mechanisms adopted by Erica andevalensis to thrive in acidic-metalliferous soils.

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“…Erica andevalensis are reported to colonize the fluvial terraces of the mining areas of the Tinto River, Spain from drier to more humid soils, reaching its optimum in the proximity of rivers and streams (Rodríguez et al 2007). Erica andevalensis shows a remarkable capacity to survive with meager quantities of nutrients and an extraordinary tolerance to high concentrations of heavy metals.…”

Section: Macrophytes In Amd Remediationmentioning

confidence: 99%

Eukaryotes in acidic mine drainage environments: potential applications in bioremediation

Das

Roy

Singh

et al. 2009

Rev Environ Sci Biotechnol

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Passive remediation of Acid Mine Drainage (AMD) is a popular technology continuously under development for more than 50 years now. Roles of eukaryotes, the natural residents of AMD and its attenuator are not emphasized adequately. Studies suggest that macrophyte distinctively generate alkalinity through benthic sediments as part of root respiration. Other eukaryotic populations effectively enrich the carbon source for maintaining sulphate reducing bacterial (SRB) populations and act symbiotically. Algae produce anoxic zones for SRB action and help in biogenic alkalinity generation. While studies on algal populations and actions are relatively available those on fungal population are limited. Fungi show capacity to absorb significant amount of metals in their cell wall, or by extra cellular polysaccharide slime. This review examines the roles of these microorganisms and documents their activities in holistic form in the mine water environment. This work discusses the potential areas of likely future research that could enable AMD remediation using active eukaryotes to be made on sound understanding.

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Heavy Metal Content inErica andevalensis: An Endemic Plant from the Extreme Acidic Environment of Tinto River and its Soils

Cited by 41 publications

References 9 publications

Heavy Metal Pollution in Soils Around the Abandoned Mine Sites of the Iberian Pyrite Belt (Southwest Spain)

Heavy Metal Pollution in Soils Around the Abandoned Mine Sites of the Iberian Pyrite Belt (Southwest Spain)

Uptake, localisation and physiological changes in response to copper excess in Erica andevalensis

Eukaryotes in acidic mine drainage environments: potential applications in bioremediation

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