Toxic Effects of Aluminum Oxide (Al2O3) Nanoparticles on Root Growth and Development in Triticum aestivum

Potential Environmental Impact of Nanoenergetics

“…73,70 One of the possible reasons for conflicting root elongation results is the variability among the applied nanoparticle size. In a study by Yanik and Vardar, 74 different concentrations of 13-nm Al2O3 inhibited wheat root growth consistent with the study of Yang and Watts. 71 Their results also confirmed that toxicity was closely associated with a decrease in particle size.…”

Transformation and bioavailability of metal oxide nanoparticles in aquatic and terrestrial environments. A review

“…images. Al 2 O 3 -NPs can also have a significant effect on root growth and development of Triticum aestivum (Yanık and Vardar, 2015) which indicate its bioavailability to plants. Rajeshwari et al (2015) also reported the uptake of Al 2 O 3 -NPs (R D , 142.4e169.2 nm) by Allium cepa (exposure concentration, 0.01e100 mg/mL), and uptake of the nano-particulate may lead to ROS generation, which in turn contribute to the induction of chromosomal aberrations.…”

Plant Response to Engineered Metal Oxide Nanoparticles

“…Al 2 O 3 nanoparticles (40 nm) had no effect on root elongation of Triticum aestivum [ 172 ]. However, in a recent study, Yanık and Vardar [ 173 ] have reported that Al 2 O 3 nanoparticles inhibit root elongation, callose formation, lignin deposition, cellular deformation, enhancement of peroxidase activity, decrease in total protein content and DNA fragmentation in T. aestivum . It has been suggested that the negative effects of Al 2 O 3 nanoparticles were time and dose dependent.…”