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Silver nanoparticle toxicity effect on growth and cellular viability of the aquatic plant Lemna gibba.
Environ Toxicol Chem. 2013 Apr; 32(4):902-7.ET

Abstract

The toxicity effect of silver nanoparticles (AgNPs) on growth and cellular viability was investigated on the aquatic plant Lemna gibba exposed over 7 d to 0, 0.01, 0.1, 1, and 10 mg/L of AgNPs. Growth inhibition was demonstrated by a significant decrease of frond numbers dependent on AgNP concentration. Under these conditions, reduction in plant cellular viability was detected for 0.1, 1, and 10 mg/L of AgNPs within 7 d of AgNPs treatment. This effect was highly correlated with the production of intracellular reactive oxygen species (ROS). A significant increase of intracellular ROS formation was triggered by 1 and 10 mg/L of AgNP exposure. The induced oxidative stress was related to Ag accumulation within L. gibba plant cells and with the increasing concentration of AgNP exposure in the medium. The authors' results clearly suggested that AgNP suspension represented a potential source of toxicity for L. gibba plant cells. Due to the low release capacity of free soluble Ag from AgNP dissolution in the medium, it is most likely that the intracellular uptake of Ag was directly from AgNPs, triggering cellular oxidative stress that may be due to the release of free Ag inside plant cells. Therefore, the present study demonstrated that AgNP accumulation in an aquatic environment may represent a potential source of toxicity and a risk for the viability of duckweeds.

Authors+Show Affiliations

Department of Chemistry, University of Quebec in Montreal, Quebec, Canada.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

23341248

Citation

Oukarroum, Abdallah, et al. "Silver Nanoparticle Toxicity Effect On Growth and Cellular Viability of the Aquatic Plant Lemna Gibba." Environmental Toxicology and Chemistry, vol. 32, no. 4, 2013, pp. 902-7.
Oukarroum A, Barhoumi L, Pirastru L, et al. Silver nanoparticle toxicity effect on growth and cellular viability of the aquatic plant Lemna gibba. Environ Toxicol Chem. 2013;32(4):902-7.
Oukarroum, A., Barhoumi, L., Pirastru, L., & Dewez, D. (2013). Silver nanoparticle toxicity effect on growth and cellular viability of the aquatic plant Lemna gibba. Environmental Toxicology and Chemistry, 32(4), 902-7. https://doi.org/10.1002/etc.2131
Oukarroum A, et al. Silver Nanoparticle Toxicity Effect On Growth and Cellular Viability of the Aquatic Plant Lemna Gibba. Environ Toxicol Chem. 2013;32(4):902-7. PubMed PMID: 23341248.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Silver nanoparticle toxicity effect on growth and cellular viability of the aquatic plant Lemna gibba. AU - Oukarroum,Abdallah, AU - Barhoumi,Lotfi, AU - Pirastru,Laura, AU - Dewez,David, Y1 - 2013/02/27/ PY - 2012/05/31/received PY - 2012/08/19/revised PY - 2012/11/30/accepted PY - 2013/1/24/entrez PY - 2013/1/24/pubmed PY - 2013/7/19/medline SP - 902 EP - 7 JF - Environmental toxicology and chemistry JO - Environ Toxicol Chem VL - 32 IS - 4 N2 - The toxicity effect of silver nanoparticles (AgNPs) on growth and cellular viability was investigated on the aquatic plant Lemna gibba exposed over 7 d to 0, 0.01, 0.1, 1, and 10 mg/L of AgNPs. Growth inhibition was demonstrated by a significant decrease of frond numbers dependent on AgNP concentration. Under these conditions, reduction in plant cellular viability was detected for 0.1, 1, and 10 mg/L of AgNPs within 7 d of AgNPs treatment. This effect was highly correlated with the production of intracellular reactive oxygen species (ROS). A significant increase of intracellular ROS formation was triggered by 1 and 10 mg/L of AgNP exposure. The induced oxidative stress was related to Ag accumulation within L. gibba plant cells and with the increasing concentration of AgNP exposure in the medium. The authors' results clearly suggested that AgNP suspension represented a potential source of toxicity for L. gibba plant cells. Due to the low release capacity of free soluble Ag from AgNP dissolution in the medium, it is most likely that the intracellular uptake of Ag was directly from AgNPs, triggering cellular oxidative stress that may be due to the release of free Ag inside plant cells. Therefore, the present study demonstrated that AgNP accumulation in an aquatic environment may represent a potential source of toxicity and a risk for the viability of duckweeds. SN - 1552-8618 UR - https://www.unboundmedicine.com/medline/citation/23341248/Silver_nanoparticle_toxicity_effect_on_growth_and_cellular_viability_of_the_aquatic_plant_Lemna_gibba_ L2 - https://doi.org/10.1002/etc.2131 DB - PRIME DP - Unbound Medicine ER -