Stress responses of Erica andevalensis Cabezudo &amp; Rivera plants induced by polluted water from Tinto River (SW Spain)

Oliva, Sabina Rossini; Bargagli, Roberto; Monaci, Fabrizio; Valdés, B.; Mingorance, M.D.; Leidi, Eduardo O.

doi:10.1007/s10646-009-0366-6

Cited by 13 publications

(6 citation statements)

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“…The analysis of root tissues by SEM-EDX demonstrates further evidence that the root epidermal and cortex cells were only partially able to prevent Cu reaching the stele (Table 4). In agreement with a previous report on soil grown Erica plants (Rossini Oliva et al 2009a) the element was not accumulated in any particular root tissue at low Cu concentration. The high amount of Cu retained in roots (Fig.…”

Section: Discussionsupporting

confidence: 93%

“…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). Although it might behave as metal-excluder (Soldevilla et al 1992), no further attempt has been carried out to know the heavy metal tolerance range and possible mechanisms to avoid metal toxicity.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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

et al. 2009

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“…Seeds of Erica andevalensis and E. australis were collected in the mining area of Riotinto (Huelva) and sown in Rockwool for germination and further cultivation in fully aerated nutrient solutions at pH 4 ( Rossini Oliva et al, 2009b ). Basically, the nutrient solution contains (in mM): K, 4 mM; Ca, 2mM; Mg, 1 mM; NH 4 + , 1mM; NO 3 − , 5; SO 4 2− , 1; H 2 PO 4 − , 1; and (in μM): B, 50; Fe, 100; Mn, 10; Cu, 1; Zn, 1; Mo, 0.5.…”

Section: Methodsmentioning

confidence: 99%

“…They grow in mixed communities or in mono-specific patches in heavily polluted mining spots of the Iberian Pyrite Belt ( Abreu et al, 2008 ; Monaci et al, 2011 ). However, the endemic species ( E. andevalensis ) seems to thrive best in the vicinity of water courses carrying highly acidic waters (pH 2.3) ( Rodríguez et al, 2007 ; Rossini Oliva et al, 2009b ; Monaci et al, 2011 ). Soil pH was a distinctive trait associated with the distribution of the species in South Portugal ( E. australis not found at pH values below 3.5) ( Rodríguez et al, 2007 ; Abreu et al, 2008 ).…”

Section: Introductionmentioning

confidence: 99%

Active proton efflux, nutrient retention and boron-bridging of pectin are related to greater tolerance of proton toxicity in the roots of two Erica species

Oliva

Mingorance

Sanhueza

et al. 2018

Plant Physiology and Biochemistry

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Background and aimsTolerance to soil acidity was studied in two species of Ericaceae that grow in mine-contaminated soils (S Portugal, SW Spain) to find out if there are interspecific variations in H+ tolerance which might be related to their particular location.MethodsTolerance to H+ toxicity was tested in nutrient solutions using seeds collected in SW Spain. Plant growth and nutrient contents in leaves, stems and roots were determined. Viability tests and proton exchange were studied in roots exposed, short-term, to acidic conditions. Membrane ATPase activity and the cell-wall pectic polysaccharide domain rhamnogalacturonan-II (RG-II) were analysed to find out interspecific differences.ResultsVariation in survival, growth and mineral composition was found between species. The H+-tolerant species (Erica andevalensis) showed greater concentration of nutrients than E. australis. Very low pH (pH 2) produced a significant loss of root nutrients (K, P, Mg) in the sensitive species. Root ATPase activity was slightly higher in the tolerant species with a correspondingly greater H+ efflux capacity. In both species, the great majority of the RG-II domains were in their boron-bridged dimeric form. However, shifting to a medium of pH 2 caused some of the boron bridges to break in the sensitive species.ConclusionsVariation in elements linked to the cell wall-membrane complex and the stability of their components (RG-II, H+-ATPases) are crucial for acid stress tolerance. Thus, by maintaining root cell structure, active proton efflux avoided toxic H+ build-up in the cytoplasm and supported greater nutrient acquisition in H+-tolerant species.

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“…In order to withstand oxidative stress, plants have developed several ecophysiological mechanisms/strategies of tolerance such as, the decrease of elements absorption and/or translocation to the aboveground organs, the intracellular sequestration as well as stimulation of the activities of antioxidative enzymes and production of non-enzymatic compounds (e.g. glutathione, ascorbic acid, carotenoids) involved in the scavenging of ROS (Abreu et al 2014 ; Caverzan et al 2012 ; Hall 2002 ; Márquez-García and Córdoba 2009 ; Pang et al 2003 ; Rossini Oliva et al 2009a ; Santos et al 2009 , 2016c ). Many plant species growing in soils with multielemental contamination from the IPB mining areas have developed these strategies (Abreu et al 2008 , 2012a , b ; Pérez-López et al 2014 ; Rossini Oliva et al 2009a , b ; Santos et al 2012 , 2014 , 2016c ).…”

Section: Introductionmentioning

confidence: 99%

Cistus monspeliensis L. as a potential species for rehabilitation of soils with multielemental contamination under Mediterranean conditions

Arenas-Lago

Santos

Carvalho

et al. 2017

Environ Sci Pollut Res

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The Iberian Pyrite Belt (IPB; SW of the Iberian Peninsula) is one of the most important volcanogenic massive sulphide ore deposits in the world. Cistus monspeliensis L. is a native woody shrub that grows spontaneously in non-contaminated soils as well as in soils with multielemental contamination from the IPB. In this study, different ecophysiological parameters of C. monspeliensis growing in soils with different levels of metal(loid)s were evaluated to assess the potential of this species for revegetation of degraded areas. Composite samples of plants and rhizosphere soils were sampled in São Domingos and Lousal mines and in a reference area without soil contamination (Pomarão, Portugal) (Portuguese sector of IPB). Classical characterisation of the soils and quantification of their total and available metal(loid) concentrations were done. Multielemental concentration was determined in plants (shoots and roots). Ecophysiological parameters were also determined in shoots: concentrations of pigments (chlorophylls, anthocyanins and carotenoids), antioxidants (glutathione and ascorbate) and hydrogen peroxide as well as activities of several antioxidative enzymes. Although mining soils present high total concentrations of potentially hazardous elements, their available fractions were low and similar among studied areas. Soil pH as well as concentrations of extractable P, total concentrations of As, Cd and Ni and concentrations of Cu, Cr, Ni, Pb and Sb in the soil available fraction differentiate the studied areas. Only concentrations of Cd, Pb and Sb in roots and shoots were explained by the concentrations of the same elements in the soil available fraction. Although the majority of elements were translocated from roots to shoots, the shoots concentrations were below the toxic values for domestic animals and only As, Mn and Zn reached phytotoxic concentrations. Ecophysiological parameters were similar independently of the studied area. Due to its adaptability, tolerance and standard plant features, C. monspeliensis is a good choice for rehabilitation of soils with multielemental contamination under similar climatic characteristics.

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Stress responses of Erica andevalensis Cabezudo & Rivera plants induced by polluted water from Tinto River (SW Spain)

Cited by 13 publications

References 41 publications

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

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

Active proton efflux, nutrient retention and boron-bridging of pectin are related to greater tolerance of proton toxicity in the roots of two Erica species

Cistus monspeliensis L. as a potential species for rehabilitation of soils with multielemental contamination under Mediterranean conditions

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