Skip to main content
Journal cover image

Stomata facilitate foliar sorption of silver nanoparticles by Arabidopsis thaliana.

Publication ,  Journal Article
He, J; Zhang, L; He, SY; Ryser, ET; Li, H; Zhang, W
Published in: Environmental pollution (Barking, Essex : 1987)
January 2022

Application of nanopesticides may substantially increase surface attachment and internalization of engineered nanoparticles (ENPs) in food crops. This study investigated the role of stomata in the internalization of silver nanoparticles (Ag NPs) using abscisic acid (ABA)-responsive ecotypes (Ler and Col-7) and ABA-insensitive mutants (ost1-2 and scord7) of Arabidopsis thaliana in batch sorption experiments, in combination with microscopic visualization. Compared with those of the ABA-free control, stomatal apertures were significantly smaller for the Ler and Col-7 ecotypes (p ˂ 0.05) but remained unchanged for the ost1-2 and scord7 mutants, after exposure to 10 μM ABA for 1 h. Generally Ag NP sorption to the leaves of the Ler and Col-7 ecotypes treated with 10 μM ABA was lower than that in the ABA-free control, mainly due to ABA-induced stomatal closure. The difference in Ag NP sorption with and without ABA was less pronounced for Col-7 than for Ler, suggesting different sorption behaviors between these two ecotypes. In contrast, there was no significant difference in foliar sorption of Ag NPs by the ost1-2 and scord7 mutants with and without ABA treatment. Ag NPs were widely attached to the Arabidopsis leaf surface, and found at cell membrane, cytoplasm, and plasmodesmata, as revealed by scanning electron microscopy and transmission electron microscopy, respectively. These results highlight the important role of stomata in the internationalization of ENPs in plants and may have broad implications in foliar application of nanopesticides and minimizing contamination of food crops by ENPs.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Environmental pollution (Barking, Essex : 1987)

DOI

EISSN

1873-6424

ISSN

0269-7491

Publication Date

January 2022

Volume

292

Issue

Pt B

Start / End Page

118448

Related Subject Headings

  • Silver
  • Signal Transduction
  • Reactive Oxygen Species
  • Protein Kinases
  • Plant Stomata
  • Mutation
  • Metal Nanoparticles
  • Environmental Sciences
  • Arabidopsis Proteins
  • Arabidopsis
 

Citation

APA
Chicago
ICMJE
MLA
NLM
He, J., Zhang, L., He, S. Y., Ryser, E. T., Li, H., & Zhang, W. (2022). Stomata facilitate foliar sorption of silver nanoparticles by Arabidopsis thaliana. Environmental Pollution (Barking, Essex : 1987), 292(Pt B), 118448. https://doi.org/10.1016/j.envpol.2021.118448
He, Jianzhou, Li Zhang, Sheng Yang He, Elliot T. Ryser, Hui Li, and Wei Zhang. “Stomata facilitate foliar sorption of silver nanoparticles by Arabidopsis thaliana.Environmental Pollution (Barking, Essex : 1987) 292, no. Pt B (January 2022): 118448. https://doi.org/10.1016/j.envpol.2021.118448.
He J, Zhang L, He SY, Ryser ET, Li H, Zhang W. Stomata facilitate foliar sorption of silver nanoparticles by Arabidopsis thaliana. Environmental pollution (Barking, Essex : 1987). 2022 Jan;292(Pt B):118448.
He, Jianzhou, et al. “Stomata facilitate foliar sorption of silver nanoparticles by Arabidopsis thaliana.Environmental Pollution (Barking, Essex : 1987), vol. 292, no. Pt B, Jan. 2022, p. 118448. Epmc, doi:10.1016/j.envpol.2021.118448.
He J, Zhang L, He SY, Ryser ET, Li H, Zhang W. Stomata facilitate foliar sorption of silver nanoparticles by Arabidopsis thaliana. Environmental pollution (Barking, Essex : 1987). 2022 Jan;292(Pt B):118448.
Journal cover image

Published In

Environmental pollution (Barking, Essex : 1987)

DOI

EISSN

1873-6424

ISSN

0269-7491

Publication Date

January 2022

Volume

292

Issue

Pt B

Start / End Page

118448

Related Subject Headings

  • Silver
  • Signal Transduction
  • Reactive Oxygen Species
  • Protein Kinases
  • Plant Stomata
  • Mutation
  • Metal Nanoparticles
  • Environmental Sciences
  • Arabidopsis Proteins
  • Arabidopsis