Tags

Type your tag names separated by a space and hit enter

Macroelemental composition of cadmium stressed lettuce plants grown under conditions of intensive sulphur nutrition.
J Environ Manage. 2016 Sep 15; 180:24-34.JE

Abstract

Lettuce (Lactuca sativa L.) is moderately sensitive to cadmium (Cd) and shows high accumulation of this metal. Thus, this species is considered to be a good model for both identifying determinants controlling Cd accumulation in plant tissues and for developing breeding strategies aimed at limiting the accumulation of this metal in edible tissues. Simultaneously, lettuce is characterised by medium requirements for sulphur (S) - a macronutrient whose role is associated not only with proper growth and development, but also with stress tolerance. The common use of NPK fertilizers without sulphates (S-SO4) together with the progressive process of reducing emissions of S compounds to the natural environment may lead to deficiency of this element in plants. The present study evaluated the changes in macronutrient content and accumulation in Cd-stressed lettuce 'Justyna' supplied with different S doses. Four concentrations of Cd (0, 0.0002, 0.02 or 0.04 mM) and three levels of S applied in the form of S-SO4 (2, 6 or 9 mM S) were used. Cd exposure impaired the macronutrient balance and accumulation in lettuce. Intensive S nutrition to some extent alleviated Cd-induced toxicity. High S doses, especially 6 mM S, partially improved macronutrient status and restored the macronutrient balance. In Cd-stressed plants supplemented with additional S, an increase in root and shoot biomass and in the content of N, K and Mg was found, without significant changes in the Ca content. Simultaneously, the P and S contents in the biomass of both above- and underground organs remained unchanged. In the leaves, as opposite to the roots, intensive S nutrition reduced the accumulation of Cd. However, the foliar Cd concentration still exceeded the acceptable limits established for consumption. All the obtained results concerning the content of macronutrients and their ratios were referred, inter alia, to the standards i.e. the Diagnosis and Recommendation Integrated System (DRIS) norms.

Authors+Show Affiliations

Department of Plant Physiology, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland. Electronic address: renata.matraszek@up.lublin.pl.Department of Plant Physiology, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland. Electronic address: bhawrylak@yahoo.com.Department of Agricultural and Environmental Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland. Electronic address: stanislaw.chwil@up.lublin.pl.Department of Botany, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland. Electronic address: miroslawa.chwil@up.lublin.pl.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27203699

Citation

Matraszek, Renata, et al. "Macroelemental Composition of Cadmium Stressed Lettuce Plants Grown Under Conditions of Intensive Sulphur Nutrition." Journal of Environmental Management, vol. 180, 2016, pp. 24-34.
Matraszek R, Hawrylak-Nowak B, Chwil S, et al. Macroelemental composition of cadmium stressed lettuce plants grown under conditions of intensive sulphur nutrition. J Environ Manage. 2016;180:24-34.
Matraszek, R., Hawrylak-Nowak, B., Chwil, S., & Chwil, M. (2016). Macroelemental composition of cadmium stressed lettuce plants grown under conditions of intensive sulphur nutrition. Journal of Environmental Management, 180, 24-34. https://doi.org/10.1016/j.jenvman.2016.05.017
Matraszek R, et al. Macroelemental Composition of Cadmium Stressed Lettuce Plants Grown Under Conditions of Intensive Sulphur Nutrition. J Environ Manage. 2016 Sep 15;180:24-34. PubMed PMID: 27203699.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Macroelemental composition of cadmium stressed lettuce plants grown under conditions of intensive sulphur nutrition. AU - Matraszek,Renata, AU - Hawrylak-Nowak,Barbara, AU - Chwil,Stanisław, AU - Chwil,Mirosława, Y1 - 2016/05/18/ PY - 2015/11/11/received PY - 2016/05/05/revised PY - 2016/05/08/accepted PY - 2016/5/21/entrez PY - 2016/5/21/pubmed PY - 2017/4/25/medline KW - Cadmium KW - Lactuca sativa L. KW - Macronutrients balance KW - Sulphur SP - 24 EP - 34 JF - Journal of environmental management JO - J Environ Manage VL - 180 N2 - Lettuce (Lactuca sativa L.) is moderately sensitive to cadmium (Cd) and shows high accumulation of this metal. Thus, this species is considered to be a good model for both identifying determinants controlling Cd accumulation in plant tissues and for developing breeding strategies aimed at limiting the accumulation of this metal in edible tissues. Simultaneously, lettuce is characterised by medium requirements for sulphur (S) - a macronutrient whose role is associated not only with proper growth and development, but also with stress tolerance. The common use of NPK fertilizers without sulphates (S-SO4) together with the progressive process of reducing emissions of S compounds to the natural environment may lead to deficiency of this element in plants. The present study evaluated the changes in macronutrient content and accumulation in Cd-stressed lettuce 'Justyna' supplied with different S doses. Four concentrations of Cd (0, 0.0002, 0.02 or 0.04 mM) and three levels of S applied in the form of S-SO4 (2, 6 or 9 mM S) were used. Cd exposure impaired the macronutrient balance and accumulation in lettuce. Intensive S nutrition to some extent alleviated Cd-induced toxicity. High S doses, especially 6 mM S, partially improved macronutrient status and restored the macronutrient balance. In Cd-stressed plants supplemented with additional S, an increase in root and shoot biomass and in the content of N, K and Mg was found, without significant changes in the Ca content. Simultaneously, the P and S contents in the biomass of both above- and underground organs remained unchanged. In the leaves, as opposite to the roots, intensive S nutrition reduced the accumulation of Cd. However, the foliar Cd concentration still exceeded the acceptable limits established for consumption. All the obtained results concerning the content of macronutrients and their ratios were referred, inter alia, to the standards i.e. the Diagnosis and Recommendation Integrated System (DRIS) norms. SN - 1095-8630 UR - https://www.unboundmedicine.com/medline/citation/27203699/Macroelemental_composition_of_cadmium_stressed_lettuce_plants_grown_under_conditions_of_intensive_sulphur_nutrition_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0301-4797(16)30266-3 DB - PRIME DP - Unbound Medicine ER -