Inhibitory effects of silver nanoparticles in two green algae, Chlorella vulgaris and Dunaliella tertiolecta

Abdallah Oukarroum, Sébastien Bras, Francois Perreault, Radovan Popovic

Research output: Contribution to journalArticle

176 Citations (Scopus)

Abstract

Freshwater microalga Chlorella vulgaris and marine microalga Dunaliella tertiolecta were used to investigate toxic effects induced by 50. nm silver nanoparticles (AgNPs). To induce AgNPs effect, we exposed Chlorella vulgaris and Dunaliella tertiolecta for 24. h to 0-10. mg/L. We showed that growth media had different effects in AgNPs agglomerates' formation. Cellular viability, reactive oxygen species (ROS) formation and lipids peroxidation were employed to assess the toxic effects of AgNPs. AgNPs were able to interact directly with the Chlorella vulgaris cells surface and large aggregates were observed. AgNPs have a negative effect on Chlorella vulgaris and Dunaliella tertiolecta, as manifested by a strong decrease in chlorophyll content, viable algal cells, increased ROS formation and lipids peroxidation. The variability in sensitivity of both algae towards AgNPs was observed. We conclude that AgNPs have a negative effect on aquatic algae and these alterations might have serious consequences on structure and function of aquatic plant communities.

Original languageEnglish (US)
Pages (from-to)80-85
Number of pages6
JournalEcotoxicology and Environmental Safety
Volume78
DOIs
StatePublished - Apr 1 2012
Externally publishedYes

Fingerprint

Chlorella vulgaris
Chlorophyta
Algae
Silver
Nanoparticles
Lipids
Oxygen
Poisons
Chlorophyll
Lipid Peroxidation
Reactive Oxygen Species
Fresh Water
Growth

Keywords

  • Chlorella vulgaris
  • Dunaliella tertiolecta
  • Lipids peroxidation
  • Reactive oxygen species
  • Silver nanoparticles

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Public Health, Environmental and Occupational Health
  • Pollution

Cite this

Inhibitory effects of silver nanoparticles in two green algae, Chlorella vulgaris and Dunaliella tertiolecta. / Oukarroum, Abdallah; Bras, Sébastien; Perreault, Francois; Popovic, Radovan.

In: Ecotoxicology and Environmental Safety, Vol. 78, 01.04.2012, p. 80-85.

Research output: Contribution to journalArticle

@article{562301a08846419ca13e20b990ff43a0,
title = "Inhibitory effects of silver nanoparticles in two green algae, Chlorella vulgaris and Dunaliella tertiolecta",
abstract = "Freshwater microalga Chlorella vulgaris and marine microalga Dunaliella tertiolecta were used to investigate toxic effects induced by 50. nm silver nanoparticles (AgNPs). To induce AgNPs effect, we exposed Chlorella vulgaris and Dunaliella tertiolecta for 24. h to 0-10. mg/L. We showed that growth media had different effects in AgNPs agglomerates' formation. Cellular viability, reactive oxygen species (ROS) formation and lipids peroxidation were employed to assess the toxic effects of AgNPs. AgNPs were able to interact directly with the Chlorella vulgaris cells surface and large aggregates were observed. AgNPs have a negative effect on Chlorella vulgaris and Dunaliella tertiolecta, as manifested by a strong decrease in chlorophyll content, viable algal cells, increased ROS formation and lipids peroxidation. The variability in sensitivity of both algae towards AgNPs was observed. We conclude that AgNPs have a negative effect on aquatic algae and these alterations might have serious consequences on structure and function of aquatic plant communities.",
keywords = "Chlorella vulgaris, Dunaliella tertiolecta, Lipids peroxidation, Reactive oxygen species, Silver nanoparticles",
author = "Abdallah Oukarroum and S{\'e}bastien Bras and Francois Perreault and Radovan Popovic",
year = "2012",
month = "4",
day = "1",
doi = "10.1016/j.ecoenv.2011.11.012",
language = "English (US)",
volume = "78",
pages = "80--85",
journal = "Ecotoxicology and Environmental Safety",
issn = "0147-6513",
publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Inhibitory effects of silver nanoparticles in two green algae, Chlorella vulgaris and Dunaliella tertiolecta

AU - Oukarroum, Abdallah

AU - Bras, Sébastien

AU - Perreault, Francois

AU - Popovic, Radovan

PY - 2012/4/1

Y1 - 2012/4/1

N2 - Freshwater microalga Chlorella vulgaris and marine microalga Dunaliella tertiolecta were used to investigate toxic effects induced by 50. nm silver nanoparticles (AgNPs). To induce AgNPs effect, we exposed Chlorella vulgaris and Dunaliella tertiolecta for 24. h to 0-10. mg/L. We showed that growth media had different effects in AgNPs agglomerates' formation. Cellular viability, reactive oxygen species (ROS) formation and lipids peroxidation were employed to assess the toxic effects of AgNPs. AgNPs were able to interact directly with the Chlorella vulgaris cells surface and large aggregates were observed. AgNPs have a negative effect on Chlorella vulgaris and Dunaliella tertiolecta, as manifested by a strong decrease in chlorophyll content, viable algal cells, increased ROS formation and lipids peroxidation. The variability in sensitivity of both algae towards AgNPs was observed. We conclude that AgNPs have a negative effect on aquatic algae and these alterations might have serious consequences on structure and function of aquatic plant communities.

AB - Freshwater microalga Chlorella vulgaris and marine microalga Dunaliella tertiolecta were used to investigate toxic effects induced by 50. nm silver nanoparticles (AgNPs). To induce AgNPs effect, we exposed Chlorella vulgaris and Dunaliella tertiolecta for 24. h to 0-10. mg/L. We showed that growth media had different effects in AgNPs agglomerates' formation. Cellular viability, reactive oxygen species (ROS) formation and lipids peroxidation were employed to assess the toxic effects of AgNPs. AgNPs were able to interact directly with the Chlorella vulgaris cells surface and large aggregates were observed. AgNPs have a negative effect on Chlorella vulgaris and Dunaliella tertiolecta, as manifested by a strong decrease in chlorophyll content, viable algal cells, increased ROS formation and lipids peroxidation. The variability in sensitivity of both algae towards AgNPs was observed. We conclude that AgNPs have a negative effect on aquatic algae and these alterations might have serious consequences on structure and function of aquatic plant communities.

KW - Chlorella vulgaris

KW - Dunaliella tertiolecta

KW - Lipids peroxidation

KW - Reactive oxygen species

KW - Silver nanoparticles

UR - http://www.scopus.com/inward/record.url?scp=84857445432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84857445432&partnerID=8YFLogxK

U2 - 10.1016/j.ecoenv.2011.11.012

DO - 10.1016/j.ecoenv.2011.11.012

M3 - Article

VL - 78

SP - 80

EP - 85

JO - Ecotoxicology and Environmental Safety

JF - Ecotoxicology and Environmental Safety

SN - 0147-6513

ER -