Tags

Type your tag names separated by a space and hit enter

Effects of zinc toxicity on sugar beet (Beta vulgaris L.) plants grown in hydroponics.
Plant Biol (Stuttg). 2009 May; 11(3):339-50.PB

Abstract

The effects of high Zn concentration were investigated in sugar beet (Beta vulgaris L.) plants grown in a controlled environment in hydroponics. High concentrations of Zn sulphate in the nutrient solution (50, 100 and 300 microm) decreased root and shoot fresh and dry mass, and increased root/shoot ratios, when compared to control conditions (1.2 microm Zn). Plants grown with excess Zn had inward-rolled leaf edges and a damaged and brownish root system, with short lateral roots. High Zn decreased N, Mg, K and Mn concentrations in all plant parts, whereas P and Ca concentrations increased, but only in shoots. Leaves of plants treated with 50 and 100 microm Zn developed symptoms of Fe deficiency, including decreases in Fe, chlorophyll and carotenoid concentrations, increases in carotenoid/chlorophyll and chlorophyll a/b ratios and de-epoxidation of violaxanthin cycle pigments. Plants grown with 300 microm Zn had decreased photosystem II efficiency and further growth decreases but did not have leaf Fe deficiency symptoms. Leaf Zn concentrations of plants grown with excess Zn were high but fairly constant (230-260 microg.g(-1) dry weight), whereas total Zn uptake per plant decreased markedly with high Zn supply. These data indicate that sugar beet could be a good model to investigate Zn homeostasis mechanisms in plants, but is not an efficient species for Zn phytoremediation.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Sagardoy R
Departamento de Nutrición Vegetal, Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, Zaragoza, Spain.
Morales F
No affiliation info available
López-Millán AF
No affiliation info available
Abadía A
No affiliation info available
Abadía J
No affiliation info available

MeSH

Beta vulgarisBiological TransportCarbon DioxideChlorophyllChlorophyll AFMN ReductaseHydroponicsMineralsNitrogenOxygenPhotosystem II Protein ComplexPlant StructuresTrace ElementsXanthophyllsZincZinc Sulfate

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19470105

Citation

Sagardoy, R, et al. "Effects of Zinc Toxicity On Sugar Beet (Beta Vulgaris L.) Plants Grown in Hydroponics." Plant Biology (Stuttgart, Germany), vol. 11, no. 3, 2009, pp. 339-50.
Sagardoy R, Morales F, López-Millán AF, et al. Effects of zinc toxicity on sugar beet (Beta vulgaris L.) plants grown in hydroponics. Plant Biol (Stuttg). 2009;11(3):339-50.
Sagardoy, R., Morales, F., López-Millán, A. F., Abadía, A., & Abadía, J. (2009). Effects of zinc toxicity on sugar beet (Beta vulgaris L.) plants grown in hydroponics. Plant Biology (Stuttgart, Germany), 11(3), 339-50. https://doi.org/10.1111/j.1438-8677.2008.00153.x
Sagardoy R, et al. Effects of Zinc Toxicity On Sugar Beet (Beta Vulgaris L.) Plants Grown in Hydroponics. Plant Biol (Stuttg). 2009;11(3):339-50. PubMed PMID: 19470105.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of zinc toxicity on sugar beet (Beta vulgaris L.) plants grown in hydroponics. AU - Sagardoy,R, AU - Morales,F, AU - López-Millán,A-F, AU - Abadía,A, AU - Abadía,J, Y1 - 2008/12/22/ PY - 2009/5/28/entrez PY - 2009/5/28/pubmed PY - 2009/9/12/medline SP - 339 EP - 50 JF - Plant biology (Stuttgart, Germany) JO - Plant Biol (Stuttg) VL - 11 IS - 3 N2 - The effects of high Zn concentration were investigated in sugar beet (Beta vulgaris L.) plants grown in a controlled environment in hydroponics. High concentrations of Zn sulphate in the nutrient solution (50, 100 and 300 microm) decreased root and shoot fresh and dry mass, and increased root/shoot ratios, when compared to control conditions (1.2 microm Zn). Plants grown with excess Zn had inward-rolled leaf edges and a damaged and brownish root system, with short lateral roots. High Zn decreased N, Mg, K and Mn concentrations in all plant parts, whereas P and Ca concentrations increased, but only in shoots. Leaves of plants treated with 50 and 100 microm Zn developed symptoms of Fe deficiency, including decreases in Fe, chlorophyll and carotenoid concentrations, increases in carotenoid/chlorophyll and chlorophyll a/b ratios and de-epoxidation of violaxanthin cycle pigments. Plants grown with 300 microm Zn had decreased photosystem II efficiency and further growth decreases but did not have leaf Fe deficiency symptoms. Leaf Zn concentrations of plants grown with excess Zn were high but fairly constant (230-260 microg.g(-1) dry weight), whereas total Zn uptake per plant decreased markedly with high Zn supply. These data indicate that sugar beet could be a good model to investigate Zn homeostasis mechanisms in plants, but is not an efficient species for Zn phytoremediation. SN - 1435-8603 UR - https://www.unboundmedicine.com/medline/citation/19470105/Effects_of_zinc_toxicity_on_sugar_beet__Beta_vulgaris_L___plants_grown_in_hydroponics_ L2 - https://doi.org/10.1111/j.1438-8677.2008.00153.x DB - PRIME DP - Unbound Medicine ER -