Tags

Type your tag names separated by a space and hit enter

Alleviation of silver toxicity by calcium chloride (CaCl2) in Lemna gibba L.
Plant Physiol Biochem. 2013 Oct; 71:235-9.PP

Abstract

The toxicity effects of silver (Ag) and the protective role of calcium chloride (CaCl2) was studied in Lemna gibba L. (L. gibba) plants. Silver speciation showed that silver toxicity in L. gibba culture medium can be attributed to free ionic Ag(+) concentration. Frond abscission, intracellular reactive oxygen species (ROS) formation and intracellular uptake of Ag(+) were investigated when L. gibba plants were exposed to AgNO3 concentrations (0.5, 1, 5, and 10 μM) supplemented or not by 10 μM CaCl2. An increase in frond abscission, intracellular ROS and intracellular uptake of Ag(+) were detected in L. gibba plants for all tested concentrations of AgNO3 after 24 h treatment. However, addition of 10 μM CaCl2 to the L. gibba culture medium reduced the toxic effects of Ag by decreasing silver uptake into the plant and intracellular ROS formation. The results suggest that Ag-induced toxicity was attributed to Ag(+) accumulation and chloride was able to protect L. gibba plants against Ag toxicity by formation of complexes with Ag and then alleviation of the metal induced oxidative stress.

Authors+Show Affiliations

Department of Chemistry and Biochemistry, University of Québec in Montréal, Case Postal 8888, Succursale Centre-Ville, Montréal, Québec H3C 3P8, Canada. Electronic address: Oukarroum.abdallah@uqam.ca.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

23974355

Citation

Oukarroum, Abdallah, et al. "Alleviation of Silver Toxicity By Calcium Chloride (CaCl2) in Lemna Gibba L." Plant Physiology and Biochemistry : PPB, vol. 71, 2013, pp. 235-9.
Oukarroum A, Gaudreault MH, Pirastru L, et al. Alleviation of silver toxicity by calcium chloride (CaCl2) in Lemna gibba L. Plant Physiol Biochem. 2013;71:235-9.
Oukarroum, A., Gaudreault, M. H., Pirastru, L., & Popovic, R. (2013). Alleviation of silver toxicity by calcium chloride (CaCl2) in Lemna gibba L. Plant Physiology and Biochemistry : PPB, 71, 235-9. https://doi.org/10.1016/j.plaphy.2013.07.019
Oukarroum A, et al. Alleviation of Silver Toxicity By Calcium Chloride (CaCl2) in Lemna Gibba L. Plant Physiol Biochem. 2013;71:235-9. PubMed PMID: 23974355.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Alleviation of silver toxicity by calcium chloride (CaCl2) in Lemna gibba L. AU - Oukarroum,Abdallah, AU - Gaudreault,Marie-Hélène, AU - Pirastru,Laura, AU - Popovic,Radovan, Y1 - 2013/08/07/ PY - 2013/05/21/received PY - 2013/07/29/accepted PY - 2013/8/27/entrez PY - 2013/8/27/pubmed PY - 2014/5/3/medline KW - Calcium KW - Frond abscission KW - Lemna gibba KW - Reactive oxygen species KW - Silver ions SP - 235 EP - 9 JF - Plant physiology and biochemistry : PPB JO - Plant Physiol Biochem VL - 71 N2 - The toxicity effects of silver (Ag) and the protective role of calcium chloride (CaCl2) was studied in Lemna gibba L. (L. gibba) plants. Silver speciation showed that silver toxicity in L. gibba culture medium can be attributed to free ionic Ag(+) concentration. Frond abscission, intracellular reactive oxygen species (ROS) formation and intracellular uptake of Ag(+) were investigated when L. gibba plants were exposed to AgNO3 concentrations (0.5, 1, 5, and 10 μM) supplemented or not by 10 μM CaCl2. An increase in frond abscission, intracellular ROS and intracellular uptake of Ag(+) were detected in L. gibba plants for all tested concentrations of AgNO3 after 24 h treatment. However, addition of 10 μM CaCl2 to the L. gibba culture medium reduced the toxic effects of Ag by decreasing silver uptake into the plant and intracellular ROS formation. The results suggest that Ag-induced toxicity was attributed to Ag(+) accumulation and chloride was able to protect L. gibba plants against Ag toxicity by formation of complexes with Ag and then alleviation of the metal induced oxidative stress. SN - 1873-2690 UR - https://www.unboundmedicine.com/medline/citation/23974355/Alleviation_of_silver_toxicity_by_calcium_chloride__CaCl2__in_Lemna_gibba_L_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0981-9428(13)00289-1 DB - PRIME DP - Unbound Medicine ER -