A New Composition of Nanosized Silica-Silver for Control of Various Plant Diseases

By Hae-Jun Park, S. -. Kim, H. Kim, S. Choi. 2006

422 citations recorded by the source corpus.

The present study addressed the efficacy of nanosized silica-silver for controlling plant pathogenic microorganisms. The nanosized silica-silver consisted of nano-silver combined with silica molecules and water soluble polymer, prepared by exposing a solution including silver salt, silicate and water soluble polymer to radioactive rays. The nanosized silica-silver showed antifungal activity against the tested phytopathogenic fungi at 3.0 ppm with varied degrees. In contrast, a number of beneficial bacteria or plant pathogenic bacteria were not significantly affected at 10 ppm level but completely inhibited by 100 ppm of nanosized silicasilver. Among the tested plant pathogenic fungi, the new product effectively controlled powdery mildews of pumpkin at 0.3 ppm in both field and greenhouse tests. The pathogens disappeared from the infected leaves 3 days after spray and the plants remained healthy thereafter. Our results suggested that the product developed in this study was effective in controlling various plant fungal diseases.

Subfields: Cell Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/df54f7b3393f42a1f3a5f108d259a19b26db1a71

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Citations in the corpus

Antifungal activity of silver nanoparticles synthesized using turnip leaf extract (Brassica rapa L.) against wood rotting pathogens (2014, background): “However, until now, only limited research provided evidences of applicability of silver nanoparticles for controlling plant diseases (Park et al. 2006).”
Silver nanoparticles in soil–plant systems (2013, background): “Nevertheless, Ag and/or AgNPs composites are also widely applicable in various agricultural activities including for the control of various phytopathogens and for plant disease management (Liu et al. 2002; Park et al. 2006; Jo et al. 2009).”
A unique and profound effect of MgO and ZnO nanoparticles on some plant pathogenic fungi (2012, background): “These nanoparticles have a great potential in the management of plant diseases as compared to synthetic fungicides (Park et al., 2006).”
Green Synthesis of Metallic Nanoparticles via Biological Entities (2015, background): “Futhermore, Ag nanoparticles can be used to control a number of plant pathogens in a safer way compared to conventional fungicides [281] and these metallic Ag nanoparticles have also been found to be active against cancer cells and plasmodial pathogens [282–285].”
An In Vitro Study of The Antifungal Activity of Silver/Chitosan Nanoformulations Against Important Seed Borne Pathogens. (2012, background): “Silver displays multiple modes of inhibitory action against microorganisms [11]; therefore, it may be used with relative safety for control of various plant pathogens, compared to synthetic fungicides [12].”
Nanoparticles for pest control: current status and future perspectives (2017, background): “The absence of phytotoxicity was also demonstrated for several plants sprayed with concentrations up to 3200 mg/l (Park et al. 2006).”