Effects of high zinc concentration on poplar leaves: A morphological and biochemical study

Todeschini, Valeria; Lingua, Graziano; D’Agostino, Giovanni; Carniato, Fabio; Roccotiello, Enrica; Berta, Graziella

doi:10.1016/j.envexpbot.2010.10.018

Cited by 124 publications

(76 citation statements)

References 67 publications

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“…; cw: cell wall; mc: mitochondrion; v: vacuole; N: nucleus; nu: nucleolus; Cp: chloroplast; pG: plastoglobule; s: starch grain; dp: metal deposition of advanced induced senescence (Todeschini et al, 2011). Consistent with our study, Todeschini et al (2011) reported an increase in the number of plastoglobuli of chloroplasts induced by high Zn concentration. Occurring more frequently during senescence, increased plastoglobuli of chloroplasts is one of the ultrastructural changes under abiotic stresses such as heavy metals (Brehelin et al, 2007).…”

Section: Discussionsupporting

confidence: 81%

“…Disintegration of double-membrane organelles, such as chloroplasts and mitochondria, was also reported in poplar leaves treated with excess Zn, which may be considered a sign ; cw: cell wall; mc: mitochondrion; v: vacuole; dp: metal deposition; N: nucleus; pl: plastid; s: starch grain; ER: endoplasmic reticulum. ; cw: cell wall; mc: mitochondrion; v: vacuole; N: nucleus; nu: nucleolus; Cp: chloroplast; pG: plastoglobule; s: starch grain; dp: metal deposition of advanced induced senescence (Todeschini et al, 2011). Consistent with our study, Todeschini et al (2011) reported an increase in the number of plastoglobuli of chloroplasts induced by high Zn concentration.…”

Section: Discussionsupporting

confidence: 81%

“…In the present study, the Zn content of leaves was 1600 mg/kg dry weight. Many studies have reported that high Zn accumulation can result in functional and structural changes in different parts of the plant (Maruthi Sridhar et al, 2005;Jiang et al, 2007;Todeschini et al, 2011). Since the root is the first target tissue exposed to high concentrations of heavy metals, it seems that functional and structural disorders appear more often in roots than in the aboveground parts of the plant.…”

Section: Discussionmentioning

confidence: 99%

“…Progress toward creating modified plants that are more efficient in phytoremediation requires an understanding of the ultrastructural, biochemical, physiological, and molecular mechanisms involved in heavy metal accumulation in different parts of the plant (Li et al, 2006). Since anatomical and ultrastructural changes can reflect and/or lead to biochemical, physiological, and molecular alterations in the plant (Todeschini et al, 2011), investigating these changes can help to understand the overall process of phytoremediation (Maruthi Sridhar et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Anatomical and ultrastructural responses of Brassica napus after long-termexposure to excess zinc

Kouhi¹,

Lahouti²,

Ganjeali³

et al. 2016

Turk J Biol

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Heavy metal contamination resulting from anthropogenic activities is one of the major environmental problems in the modern world. Progress toward creating modified plants that are more efficient in phytoremediation requires an understanding of the anatomical and ultrastructural changes involved in heavy metal accumulation. A large supply of zinc (Zn) is toxic for plants and can lead to functional and structural disorders. The present study investigates the anatomical and ultrastructural responses of Brassica napus (rapeseed) to excess Zn after long-term exposure. Results showed that Zn bioaccumulation in the roots and leaves of plants treated with 350 µM Zn 2+ was severely increased, leading to a variety of anatomical and ultrastructural alterations in several cell types. Overall, although B. napus has been reported as a metal-accumulator species, our data revealed that B. napus cultivar Hayola 401 could not tolerate a high concentration of Zn and thus is not a good candidate for Zn phytoremediation.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Anatomical and ultrastructural responses of Brassica napus after long-termexposure to excess zinc

Kouhi¹,

Lahouti²,

Ganjeali³

et al. 2016

Turk J Biol

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“…The metal might be recovered in the aerial parts (Castiglione et al 2007). At leaf level, heavy metals can strongly alter leaf morphology and ultrastructure (Lingua et al 2008, Castiglione et al 2009, and negatively affect PSII activity, decreasing D1 and D2 reaction center proteins, but not light harvesting antenna system (LHCII) and protein expression (Todeschini et al 2011). Iori et al (2012) have observed that the high tolerance of a clone might be associated to the activity of antioxidative enzymes and the ability to increase thiol and phytochelatin concentrations in response to metal exposure.…”

Section: Response Of Salicaceae To Pollutants and Monitoring Of The Cmentioning

confidence: 99%

Shaping the multifunctional tree: the use of Salicaceae in environmental restoration

Tognetti¹,

Cocozza²,

Marchetti³

2013

iForest

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Poplars and willows (and other fast growing tree species) form an important component of agroforestry systems, providing a wide range of ecosystem services and products. The workshop held in Capracotta (6th and 7th June 2012) has communicated the latest research on poplars and willows in the field of environmental restoration conducted in Italy, providing a condensed overview on their basic response to pollutants and use in environmental monitoring, highlighting future challenges of phytotechnology issues. In the frame of the project MIUR-PRIN 2008 “Molecular, physiological, and agronomic analyses for selecting and managing Salicacee in phytoremediation”, 17 talks were delivered to an audience of more than 50 researchers. Prominence was given to stress biology and the importance of poplar and willow breeding in meeting the needs of ecological restoration. The aim of this review is provide a timely account of the questions related to phytotechnology in shaping the multifunctional tree, particularly with regard to tree responses to environmental pollution. While the question is scientifically challenging, progress may be achieved by exposing the different environmental restoration models and underlying guiding principles to tests against experimental data and each other. Research and development should focus simultaneously on maximizing the yield of multipurpose tree plantations, while preserving or restoring ecosystem services of close-to-nature willow-poplar stands (e.g., riparian forests). We hope that this review will stimulate further studies in this interesting area of tree biology

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Trace Elements – A Threat or Benefit?

Chojnacka

Michalak

Saeid

et al. 2018

Recent Advances in Trace Elements

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Effects of high zinc concentration on poplar leaves: A morphological and biochemical study

Cited by 124 publications

References 67 publications

Anatomical and ultrastructural responses of Brassica napus after long-termexposure to excess zinc

Anatomical and ultrastructural responses of Brassica napus after long-termexposure to excess zinc

Shaping the multifunctional tree: the use of Salicaceae in environmental restoration

Trace Elements – A Threat or Benefit?

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