Effective control of the tomato wilt pathogen using TiO₂ nanoparticles as a green nanopesticide

Abstract

Here, TiO2 nanoparticles (NPs), with rod-like morphology, were synthesised under hydrothermal conditions as a green and efficient nanopesticide against bacterial wilt Ralstonia solanacearum. The NPs had a rutile crystal structure...

A dual pesticide–fertilizer silicon-base nanocomposite to synergistically control fungal disease and provide nutrition

“…The higher the value, the more severe the cell membrane damage. 46,47 Fig. 9 shows that the ergosterol content in R. solani after Pro@Cu-MSNs-ZnO/Hym Np treatment (1.03 mg g −1 ) was lower than that of Pro+Hym TC (control, 1.25 mg g −1 ).…”

Comparative analysis of chemically and green synthesized titanium dioxide nanoparticles for the regulation of photosynthesis in Lactuca sativa L.

“…4 It has been reported that Ag-based, Ti-based, and Cubased nanomaterials are the commonest analyzed metalbased nanopesticides, where titanium dioxide (TiO 2 ) NPs with excellent photocatalytic properties, high stability, and low cost are widely used as antimicrobial agents. 4,5 Nonetheless, TiO 2 NPs are identified by the Organisation for Economic Co-operation and Development (OECD) as priority contaminants for ecotoxicity testing. 6 Furthermore, considering the limitations of conventional pesticides, there is an urgent need to carefully review pesticides in the form of NPs to ensure their efficacy and safety.…”

“…It is generally believed that NPs can accumulate in plant tissues through roots or leaves, but no consistent results have been obtained regarding the effects of NPs on plants. TiO 2 NPs not only improve crop growth 14 and enhance stress tolerance, 5 but also cause abnormalities in metabolism, 15 gene expression, 16 and mineral nutrient uptake. 17 Typically, mitochondria and chloroplasts are the main organelles attacked by nanopesticides, where chloroplasts are closely related to plant growth and very sensitive to environmental pollutants as the energy synthesis factory of plants.…”

Biosynthesis of high antibacterial silver chloride nanoparticles against Ralstonia solanacearum using spent mushroom substrate extract

“…Recently, nanomaterials have been applied to control and manage agricultural diseases. For example, it was reported that nano-TiO 2 as an efficient nanopesticide exhibited a strong antimicrobial effect against R. solanacearum and had no significant effect on tomato growth [27]. Thus, we should take full advantage of nanomaterials' physical and chemical properties to resist pathogens in agriculture.…”