Editorial: New insights in nanotechnology for plant stress management
Résumé
New insights in nanotechnology for plant stress managementAgriculture on our planet faces many challenges due to environmental stresses (biotic and abiotic), limiting plant growth and causing yield loss, thus inciting food crises across the world (Fisher et al., 2018).To attain sustainable agricultural production and ensure food safety, there is a demand to elevate the stress forbearance in plants.In recent years, nanotechnology has emerged as a viable platform in the era of agriculture, attracting the interest of researchers from a variety of disciplines, for resolving challenges associated with biotic and abiotic stresses to assure agricultural sustainability (Duhan et al., 2017;Du et al., 2020;Hossain et al, 2020; Baazaoui et al, 2021; Baazaoui and Sghaier-Hammami, 2021;Baazaoui et al., 2023).Nanoparticles (NPs) have positive impacts on plant growth and development and tolerance against biotic and abiotic stresses, by increasing the activities of antioxidants (Emamverdian et al., 2020;Ahmed et al., 2021), and maintaining the efficiency of the photosynthetic apparatus (Soares et al., 2018).Nanotechnology application in agriculture will help to reduce the environmental release of agrochemicals like pesticides, herbicides, and fertilizers (Adisa et al., 2019;Ali et al., 2021).This will not only help in reducing pollution but also help in reducing the input cost of cropping.Five articles focused on providing comprehensive reviews of the role of NPs utilized to tolerate different abiotic stresses in plants.The work on the nickel-silica nanoparticles by Abdallah et al. provides useful insights into the significance of these NPs on the suppression of bacterial (Xoo) leaf blight (BLB) disease in rice (Oryza sativa L.).The obtained results demonstrate that the saffron (Crocus sativus L.) stigma extracts represent a good candidate to synthesize pure nanocomposite (Ni-SiO 2 ).The in vitro experiments showed that Ni-SiO 2 composite inhibits bacterial growth in nutrient broth and hindered biofilm development of Xoo cells in a dosedependent manner.The research showed that the incubation of Xoo with Ni-SiO 2 NPs composite (200 mg/ml) drastically increased the apoptosis of the bacterial cells to 99.61%.The application of Ni-SiO 2 NPs composite at a concentration of 200 mg/ml significantly improves plant growth (leaf length and high, shoot and root length, plant fresh and dry weight) and reduces disease severity of BLB in rice.
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