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

@article{Todeschini2011EffectsOH,
  title={Effects of high zinc concentration on poplar leaves: A morphological and biochemical study},
  author={V. Todeschini and G. Lingua and G. D'agostino and F. Carniato and E. Roccotiello and G. Berta},
  journal={Environmental and Experimental Botany},
  year={2011},
  volume={71},
  pages={50-56}
}
Abstract Plants growing under zinc excess store it in leaves, the organs in charge with carbon assimilation. Therefore, leaf modifications can help to understand the plant responses to environmental stresses. In this study, we tested the hypothesis that high zinc concentration can affect leaf anatomy and physiology of Populus alba cv. Villafranca, a tree species with interesting perspectives of application in phytoremediation. Plants were supplemented or not with 300 mg zinc per kg of soil and… Expand
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References

SHOWING 1-10 OF 74 REFERENCES
Cadmium-induced changes in the growth and oxidative metabolism of pea plants.
TLDR
Results obtained suggest that growth of pea plants with CdCl(2) can induce a concentration-dependent oxidative stress situation in leaves, characterized by an accumulation of lipid peroxides and oxidized proteins as a result of the inhibition of the antioxidant systems. Expand
High zinc concentrations reduce rooting capacity and alter metallothionein gene expression in white poplar (Populus alba L. cv. Villafranca).
TLDR
The developmental and molecular data reveal that the in vitro model is a sensitive and reliable system to study heavy metal stress responses in Populus alba. Expand
Effects of Copper Toxicity on Leaves of Oregano (Origanum vulgare subsp. hirtum)
TLDR
The effects of copper toxicity on oregano leaves comprised significant structural alterations which reflect reduced metabolic activity and the number of stomata and glandular and non-glandular hairs increased significantly. Expand
Quantitative changes in protein expression of cadmium‐exposed poplar plants
TLDR
Accumulation of CD in stems of poplar, coupled with a low impact of Cd on physiological parameters, promotes the use of poplr trees for phytoremediation purposes. Expand
Arbuscular mycorrhizal fungi differentially affect the response to high zinc concentrations of two registered poplar clones.
TLDR
Results indicate that poplars are suitable for phytoremediation purposes, and underscore the importance of appropriate combinations of plant genotypes and fungal symbionts. Expand
Effects of external phosphorus on the cell ultrastructure and the chlorophyll content of maize under cadmium and zinc stress.
TLDR
The results indicated that the complex pollution involving Cd and Zn resulted in the membrane system of chloroplasts being damaged, and treatment with phosphorus conduced an increased chlorophyll content in plants compared with those that did not receive external phosphorus. Expand
Zinc distribution and speciation in Arabidopsis halleri x Arabidopsis lyrata progenies presenting various zinc accumulation capacities.
TLDR
Results support the role of carboxyl and/or hydroxyl groups as major Zn ligands in these cells and the depletion of the veins in the stronger accumulators are attributed to a higher xylem unloading and vacuolar sequestration in the leaf cells. Expand
Responses of the Populus × euramericana clone I-214 to excess zinc: Carbon assimilation, structural modifications, metal distribution and cellular localization
TLDR
This study demonstrates the advantages of combining cryo-SEM/EDXMA, gas exchange and chemical analyses for studying metal localization and structural as well as physiological responses in plants. Expand
Clonal differences in survival capacity, copper and zinc accumulation, and correlation with leaf polyamine levels in poplar: a large-scale field trial on heavily polluted soil.
TLDR
The results indicate that, given the high GD of Populus even within populations, it is possible to identify genotypes best suited for soil clean-up, and useful also for investigating physiological markers associated with high metal accumulation/tolerance. Expand
Zinc hyperaccumulation and cellular distribution in Arabidopsis halleri
TLDR
In a hydroponic experiment, A. halleri grew healthily with Zn concentrations varying from 1 to 1000 μM, without showing phytotoxicity or reduction in root or shoot dry weights, and Cellular distribution of Zn, Ca and K in frozen hydrated leaf tissues was examined using energy-dispersive X-ray microanalysis. Expand
...
1
2
3
4
5
...