Accumulation, speciation and uptake pathway of ZnO nanoparticles in maize
By Jitao Lv, Shuzhen Zhang, L. Luo, Jing Zhang, Ke-Qian Yang, P. Christie. 2015
192 citations recorded by the source corpus.
Engineered nanomaterials such as ZnO nanoparticles (NPs) will inevitably enter the environment because of the large quantities produced and their widespread application. Plants comprise a fundamental living component of terrestrial ecosystems; thus, understanding the interaction between ENMs and plants is important. In the present study we conducted an integrated study by employing a combination of microscopic and spectroscopic techniques to comparatively investigate the uptake of ZnO NPs and Zn2+ ions by maize in order to further elucidate plant uptake pathways of ZnO NPs. The results demonstrate that the majority of Zn taken up was derived from Zn2+ released from ZnO NPs, and Zn accumulated in the form of Zn phosphate. ZnO NPs were observed mainly in the epidermis, a small fraction of ZnO NPs were present in the cortex and root tip cells, and some further entered the vascular system through the sites of the primary root-lateral root junction. However, no ZnO nanoparticle was observed to translocate to shoots, possibly due to the dissolution and transformation of ZnO NPs inside the plants.
Subfields: Geochemistry and Petrology, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/fafcc0fd62f713f8af82086491c7bc28bf5d5dfb
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In Geochemistry and Petrology
In Materials Chemistry
Citations in the corpus
- Zinc oxide nanoparticles: a review of their biological synthesis, antimicrobial activity, uptake, translocation and biotransformation in plants (2017, background): “[54] investigated that a large amount of Zn was taken up resulting from Zn released from ZnO NPs and Zn accumulated in the form of ZnPO4 ZnO NPs adsorbed on root surfaces move into the root cortex as a result of quick cell division and elongation of the root tips, and hence the ZnO NPs were detected”
- Interaction of Nanomaterials with Plants: What Do We Need for Real Applications in Agriculture? (2017, background): “Some nanoparticles could be transformed or degraded by the plant after some time (Wang et al., 2012; Zhang et al., 2012; Lv et al., 2015), or simply being stored in tissues that will not be used after harvesting.”
- Barriers, pathways and processes for uptake, translocation and accumulation of nanomaterials in plants – Critical review (2016, background): “can dissolve completely before uptake in extreme cases (Badireddy et al., 2014; Lv et al., 2015; Vannini et al., 2014; Zhang et al., 2012b).”