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Enhancing lettuce yield via Cu/Fe-layered double hydroxide nanoparticles spraying.
J. Nanobiotechnology 21:417 (2023)
Publ. Version/Full Text
DOI
PMC
Layered double hydroxides (LDHs) have been widely used in the field of plant engineering, such as DNA/RNA transformation and enhancing plant disease resistance. However, few studies have examined the direct effects of LDHs on plants and their potential utility as nanofertilizers. In this study, the retention capacity of Cu/Fe-layered double hydroxide nanoparticles (CuFe-LDHs) was assessed by comparative experiments on vegetables. The results showed that the retention of CuFe-LDHs in leafy vegetables was high, such as lettuce. Phenotypic analysis revealed that the fresh and dry weights of lettuce leaves were both increased by spraying 10-100 μg/mL CuFe-LDHs. Using the optimal concentration of 10 μg/mL, we conducted further experiments to elucidate the mechanism of CuFe-LDHs promoting lettuce growth. It was found that the application of CuFe-LDHs had a significant effect on growth and induced physiological, transcriptomic, and metabolomic changes, including an increase in the chlorophyll b content, net photosynthetic rate, and intercellular carbon dioxide concentration, as well as modifications in gene expression patterns and metabolite profiles. This work provides compelling evidence that CuFe-LDHs can efficiently adsorb on the surface of lettuce leaves through hydrogen bonding, promote lettuce growth, mitigate the toxicity of heavy metal ions compared to their raw materials at the same concentration and offer a molecular-scale insight into the response of leafy vegetables to CuFe-LDHs.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Layered Double Hydroxides ; Lettuce ; Phenotypic Analysis; Plant-growth; Nanosheets; Stress; Copper; Photosynthesis; Homeostasis; Challenges; Transport; Impact; Cells
e-ISSN
1477-3155
Journal
Journal of Nanobiotechnology
Quellenangaben
Volume: 21,
Issue: 1,
Article Number: 417
Publisher
BioMed Central
Publishing Place
Campus, 4 Crinan St, London N1 9xw, England
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Epidemiology II (EPI2)
Grants
National Natural Science Foundation of China
National Key Research and Development Program
the National Natural Science Foundation of China
National Key Research and Development Program
the National Natural Science Foundation of China