Compartmentation of metals in foliage of  Populus tremula  grown on soils with mixed contamination. II. Zinc binding inside leaf cell organelles

Vollenweider, Pierre; Bernasconi, Petra; Gautschi, Hans Peter; Menard, Terry; Frey, Beat; Günthardt‐Goerg, Madeleine S.

doi:10.1016/j.envpol.2010.03.016

Cited by 19 publications

(24 citation statements)

References 31 publications

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“…Populus tremula, and these crystals had different structures and composition compared to the Zncrystals (Vollenweider et al, 2011a). The presence of Zn-rich crystals with a variety of crystalline shapes in the freeze-dried leaf samples was consistent with previous research using SEM of freezedried samples (Dinh et al, 2015).…”

Section: Distribution Of Zn Cu and Pb In Plant Leavessupporting

confidence: 77%

“…tremula had a high Zn/phosphorus (P) ratio (Vazquez et al, 1994;Vollenweider et al, 2011a) and were identified as ligands of Zn-phytic acid (Vollenweider et al, 2011a).…”

Section: Biochemical Mechanismmentioning

confidence: 99%

“…Crystals found in the roots of both N. caerulescens and P. tremula had a high Zn/P ratio (Vazquez et al, 1994;Vollenweider et al, 2011a) and were identified as ligands of Zn-phytic acid (Vollenweider et al, 2011a). Kopittke et al (2011) reported that 60-85 % of the total Zn uptake by cowpeas was stored as Zn phytate within three hours of root exposure.…”

Section: Introductionmentioning

confidence: 99%

“…Interaction between Zn and P in plant tissues was reported to impact Zn uptake and detoxification in some hyperaccumulators by forming precipitates of Zn-phosphate (Vazquez et al, 1994;Kupper et al, 1999;Vollenweider et al, 2011a). According to Cakmak & Marschner (1987), high levels of P in plant tissues reduces the physiological availability of Zn, and the level of water-soluble Zn can be considered as an indicator for phosphorus-induced Zn deficiency.…”

Section: Introductionmentioning

confidence: 99%

“…High Zn concentrations did not, however, suppress the uptake of either Ni, Cd or Co (Henk et al, 1999). Vollenweider et al (2011a) showed that in the hyperaccumulator Populus tremula, there was a systematic increase in P with excess Zn. In contrast, studies by Li et al (2009) and found that P reduced Zn concentration in some plant crop species Li et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Phytoextraction of zinc by the hyperaccumulator Noccaea caerulescens: accumulation, distribution and multi-element interactions

Dinh¹

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Phytoextraction involves the removal of heavy metals from contaminated sites using hyperaccumulators such as Noccaea caerulescens F.K.Meyer (formerly Thlaspi caerulescens) which is a well-known Zn hyperaccumulator and a model species for hyperaccumulator studies.This PhD thesis investigates the zinc response of the hyperaccumulator in terms of accumulation, distribution and multi-element interactions. The impact of Zn, Pb and Cu on the growth, Zn accumulation and distribution, and interaction between the metals and between the metals and other plant nutrients were examined in soution culture to provide insights into the physiological and biochemical mechanisms of metal hyperaccumulation and detoxification.Noccaea caerulescens were treated with a range of Zn concentrations to investigate uptake, tolerance and distribution of Zn, and these were compared with the responses in a related nonhyperaccumulator, Thlaspi arvense. Noccaea caerulescens showed a high Zn requirement for growth and a higher Zn accumulation and tolerance, with in excess of 2.5 % Zn in the shoot dry mass occurring without visible toxicity symptoms. Thlaspi arvense displayed Zn toxicity symptoms within two weeks of comparable Zn treatment. Increasing shoot Zn concentrations in N.caerulescens reduced Ca and P concentrations by up to 50% and 35%, respectively. Scanning electron microscopy with energy-dispersive X-ray (SEM-EDS) showed that Zn-containing crystals were abundant in leaf epidermal cells and the cortex of the roots during the later growth phase of N. caerulescens.The impact of Pb and Cu on Zn phytoextraction in N. caerulescens was investigated and these metals in solution were found to inhibit both growth and Zn accumulation when present in combination with Zn. Plants were more sensitive to Cu than Pb with Cu being more readily transported to the shoots while almost all Pb was retained in the roots. Concentrations of other essential nutrients such as Ca, Mg, P, S, Fe, and K were decreased in shoots but increased in roots when there was a prolonged period of metal exposure. Higher levels of Zn accumulation decreased the concentrations of Ca, Mg, S and Fe in shoots. Sub-cellular elemental localization analysis using SEM-EDS revealed that Zn accumulated primarily inside the vacuoles of leaf epidermal cells. Znrich crystals were observed in the SEM freeze-dried leaf samples of the control and the Zn plus Pb treatment after extended exposure, but no crystals were found in the cryo-SEM leaf samples.Copper and Pb were not detected in the Zn-rich crystals of the freeze-dried samples or the cryo-SEM samples.ii A fluorescent probe technique was developed and applied to investigate the distribution of Zn ion in fresh plant tissues. Noccaea caerulescens was found to have not only a high capacity for Zn accumulation, but also a high tolerance to Pb. Both these characteristics were more prominent in younger plants. Zinc in combination with Pb had less impact on plant growth than Zn alone. In this thesis, a number of novel techniques were succe...

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Section: Distribution Of Zn Cu and Pb In Plant Leavessupporting

confidence: 77%

“…tremula had a high Zn/phosphorus (P) ratio (Vazquez et al, 1994;Vollenweider et al, 2011a) and were identified as ligands of Zn-phytic acid (Vollenweider et al, 2011a).…”

Section: Biochemical Mechanismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Phytoextraction of zinc by the hyperaccumulator Noccaea caerulescens: accumulation, distribution and multi-element interactions

Dinh¹

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Heavy metals and arsenic phytoavailability index in pioneer plants from a semipermanent natural wetland

Gómez-Bernal

Ruíz-Huerta

Armienta

et al. 2017

Env Prog and Sustain Energy

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The total concentration of Pb, Zn, Cu, Fe, Mn, and As in mining‐impacted soils and pioneer plants from a semi‐permanent natural wetland was determined by X‐ray fluorescence. Results showed that the maximum values in soil were Fe > Zn > Pb > Mn > As > Cu and in plants were Zn > Pb > As > Cu, and Mn and Fe were found in variable concentrations. Bouteloa repens showed the highest translocation factor (TF) for all heavy metals, and the highest phytoavailability index (PI) for Fe, Cu, As, and Mn. However, Typha dominguensis was the plant species with the most elevated bioconcentration factor (BCF) for Mn and Fe and PI for Pb and Zn, while Cyperus manimae showed the maximum BCF for As, Pb, and Cu, and the highest PI for Mn. For Eleocharis ovata the maximum BCF and PI were for Zn and As, respectively. The PI indicates the availability of heavy metals and As in the environment and their bioaccumulation in plants. The plant species reported in this study are pioneer plants that can easily become established due to their environmental resilience and physiologic characteristics. This study shows that B. repens and T. dominguensis are species that translocate heavy metals and accumulate them in their various organs, and therefore, these plants are suggested as good candidates for phytostabilization in similar semi‐permanent natural wetlands. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 980–988, 2018

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“Microscopic evidences of heavy metals distribution and anatomic alterations in breaching-leaves of Cupressuslindleyigrowing around mining wastes”

Gómez-Bernal

Mortón-Bermea

Aurora

et al. 2014

Microsc. Res. Tech.

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In this article a study of the distribution of heavy metals in Cupressus lindleyi breaching-leaves was done in Taxco, Guerrero. At the same, heavy metals micro-localization was conducted in the breaching-leaves to understand the structural changes provoked by mining waste on plants. The most abundant contaminants in soils, tailings and different plant organs (roots, stems, and leaves) were Zn, Mn, and Pb. Nevertheless, As was more accumulated in the stem and breaching-leaves. The translocation factor and the bio-concentration factor were less than 1. The structural changes observed were the great accumulation of starch grains and phenolic compounds in the palisade parenchyma, changes in the hypodermis cell wall and necrotic zones in the palisade parenchyma. The distribution of heavy metals in breaching-leaves tissues was homogeneous in most of the elements. These results showed that C. lindleyi is a species that can be employed in phytostabilization of contaminated zones with mining waste because it is a native plant that does not require a lot of conditions for its development.

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Compartmentation of metals in foliage of Populus tremula grown on soils with mixed contamination. II. Zinc binding inside leaf cell organelles

Cited by 19 publications

References 31 publications

Phytoextraction of zinc by the hyperaccumulator Noccaea caerulescens: accumulation, distribution and multi-element interactions

Phytoextraction of zinc by the hyperaccumulator Noccaea caerulescens: accumulation, distribution and multi-element interactions

Heavy metals and arsenic phytoavailability index in pioneer plants from a semipermanent natural wetland

“Microscopic evidences of heavy metals distribution and anatomic alterations in breaching-leaves of Cupressuslindleyigrowing around mining wastes”

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