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Accumulation of cadmium, zinc, and copper by Helianthus annuus L.: impact on plant growth and uptake of nutritional elements.
Int J Phytoremediation. 2012 Apr; 14(4):320-34.IJ

Abstract

We investigated the effects on physiological response, trace elements and nutrients accumulation of sunflower plants grown in soil contaminated with: 5 mg kg(-1) of Cd; 5 and 300 mg kg(-1) of Cd and Zn, respectively; 5, 300, and 400 mg kg(-1) of Cd, Zn, and Cu, respectively. Contaminants applied did not produce large effects on growth, except in Cd-Zn-Cu treatment in which leaf area and total dry matter were reduced, by 15%. The contamination with Cd alone did not affect neither growth nor physiological parameters, despite considerable amounts of Cd accumulated in roots and older leaves, with a high bioconcentration factor from soil to plant. By adding Zn and then Cu to Cd in soil, significant were the toxic effects on chlorophyll content and water relations due to greater accumulation of trace elements in tissues, with imbalances in nutrients uptake. Highly significant was the interaction between shoot elements concentration (Cd, Zn, Cu, Fe, Mg, K, Ca) and treatments. Heavy metals concentrations in roots always exceeded those in stem and leaves, with a lower translocation from roots to shoots, suggesting a strategy of sunflower to compartmentalise the potentially toxic elements in physiologically less active parts in order to preserve younger tissues.

Authors+Show Affiliations

Rivelli AR
Department of Crop Systems, Forestry and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, Potenza, Italy. annarita.rivelli@unibas.it
De Maria S
No affiliation info available
Puschenreiter M
No affiliation info available
Gherbin P
No affiliation info available

MeSH

Biodegradation, EnvironmentalBiological TransportCadmiumCopperHelianthusMetals, HeavyPlant LeavesPlant RootsPlant StemsRandom AllocationSoilSoil PollutantsTrace ElementsWaterZinc

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22567714

Citation

Rivelli, Anna Rita, et al. "Accumulation of Cadmium, Zinc, and Copper By Helianthus Annuus L.: Impact On Plant Growth and Uptake of Nutritional Elements." International Journal of Phytoremediation, vol. 14, no. 4, 2012, pp. 320-34.
Rivelli AR, De Maria S, Puschenreiter M, et al. Accumulation of cadmium, zinc, and copper by Helianthus annuus L.: impact on plant growth and uptake of nutritional elements. Int J Phytoremediation. 2012;14(4):320-34.
Rivelli, A. R., De Maria, S., Puschenreiter, M., & Gherbin, P. (2012). Accumulation of cadmium, zinc, and copper by Helianthus annuus L.: impact on plant growth and uptake of nutritional elements. International Journal of Phytoremediation, 14(4), 320-34.
Rivelli AR, et al. Accumulation of Cadmium, Zinc, and Copper By Helianthus Annuus L.: Impact On Plant Growth and Uptake of Nutritional Elements. Int J Phytoremediation. 2012;14(4):320-34. PubMed PMID: 22567714.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Accumulation of cadmium, zinc, and copper by Helianthus annuus L.: impact on plant growth and uptake of nutritional elements. AU - Rivelli,Anna Rita, AU - De Maria,Susanna, AU - Puschenreiter,Markus, AU - Gherbin,Piergiorgio, PY - 2012/5/10/entrez PY - 2012/5/10/pubmed PY - 2014/5/23/medline SP - 320 EP - 34 JF - International journal of phytoremediation JO - Int J Phytoremediation VL - 14 IS - 4 N2 - We investigated the effects on physiological response, trace elements and nutrients accumulation of sunflower plants grown in soil contaminated with: 5 mg kg(-1) of Cd; 5 and 300 mg kg(-1) of Cd and Zn, respectively; 5, 300, and 400 mg kg(-1) of Cd, Zn, and Cu, respectively. Contaminants applied did not produce large effects on growth, except in Cd-Zn-Cu treatment in which leaf area and total dry matter were reduced, by 15%. The contamination with Cd alone did not affect neither growth nor physiological parameters, despite considerable amounts of Cd accumulated in roots and older leaves, with a high bioconcentration factor from soil to plant. By adding Zn and then Cu to Cd in soil, significant were the toxic effects on chlorophyll content and water relations due to greater accumulation of trace elements in tissues, with imbalances in nutrients uptake. Highly significant was the interaction between shoot elements concentration (Cd, Zn, Cu, Fe, Mg, K, Ca) and treatments. Heavy metals concentrations in roots always exceeded those in stem and leaves, with a lower translocation from roots to shoots, suggesting a strategy of sunflower to compartmentalise the potentially toxic elements in physiologically less active parts in order to preserve younger tissues. SN - 1522-6514 UR - https://www.unboundmedicine.com/medline/citation/22567714/Accumulation_of_cadmium_zinc_and_copper_by_Helianthus_annuus_L_:_impact_on_plant_growth_and_uptake_of_nutritional_elements_ DB - PRIME DP - Unbound Medicine ER -