Zinc Oxide Nanoparticles Induced Oxidative Stress and Changes in the Photosynthetic Apparatus in Fenugreek (Trigonella foenum graecum L.)
The aim of this work was to study the toxicity of nanosheet zinc oxide nanoparticle with the size of 45 nm. The penetration of nanoparticles at an exposure by a localized spray does not make it possible to understand the mechanism of transport and bioavailability of the nanoparticles. In contrast, nanoparticles penetrated, via the roots, as a function of their diameter, the smaller ones having caused leaf stress (by translocation) at low concentrations. So that the choice of method of root application. Plants treated with 50 mg L−1 of ZnO-NPs presented disturbance in leaf due to changes in chlorophyll’s biosynthesis. The highest value of the photosynthetic pigments was recorded at 5 mg L−1 of ZnO-NPs. However, the treatment with 50 mg L−1 of ZnO-NPs caused a decrease in the levels of chlorophyll a and b. Moreover, ZnO-NPs leaves significantly enhanced antioxidant enzymes activities.
KeywordCo-precipitation Zinc oxide nanoparticles Photosynthetic Oxidative stress Trigonella foenum graecum L
Financial support for this work was received from the Tunisian Ministry of Higher Education, Scientific Research, and Technology (LR15CERTE04).
Compliance with Ethical Standards
Conflict of interest
The authors declare that they have no competing interest.
- Çimrin KM, Türkmen Ö, Turan M, Tuncer B (2010) Phosphorus and humic acid application alleviate salinity stress of pepper seedling. Afr J Biotechnol 9:5845–5851Google Scholar
- Hoagland DR, Arnon DI, Hause B, Eiche E et al (1950) The water-culture method for growing plants without soil. Circ Calif Agric Exp Stat 347:1-32Google Scholar
- Koller E (2004) Traitement des pollutions industrielles. Paris 59–90,Google Scholar
- Larue C, Khodja H, Herlin-Boime N et al (2011) Investigation of titanium dioxide nanoparticles toxicity and uptake by plants. J Phys Conf Ser 304Google Scholar
- Rico C, Hong J, Morales MI, Zhao L, Barrios AC et al (2013) Effect of cerium oxide nanoparticles on rice: a study involving the antioxidant defense system and in vivo fluorescence imaging. Environ Sci Technol 47:11–33Google Scholar
- Schützendübel A, Polle A (2002) Plant responses to abiotic stresses: heavy metal-induced oxidative stress and protection by mycorrhization. J Exp Bot 53:1351–1365Google Scholar
- Siani NG, Fallah S, Rostamnejadi A (2016) Evaluation of Iinhibition effect of ZnO nanoparticles concentration regarding seed germination and seedling growth of Fenugreek (Trigonella foenum-graecum L.). J Med Plants By-prod 2:235–243Google Scholar