Multimodal Generally Recognized As Safe Zno/Nanocopper Composite: A Novel Antimicrobial Material For The Management Of Citrus Phytopathogens
Keywords
antimicrobial; citrus canker; copper; nanotechnology; silica gel; zinc oxide
Abstract
Copper (Cu) bactericides/fungicides are used extensively for crop protection in agriculture. Concerns for Cu accumulation in soil, Cu leaching into the surrounding ecosystem, and development of Cu resistance in phytopathogenic bacteria are evident. While there is no suitable alternative to Cu available to date for agricultural uses, it is possible to reduce Cu per application by supplementing with Zn and improving Cu bioavailability using nanotechnology. We have prepared a non-phytotoxic composite material consisting of generally recognized as safe ZnO 800 particles and nanocopper-loaded silica gel (ZnO-nCuSi). The morphology of the ZnO-nCuSi material was characterized using scanning electron microscopy, showing ZnO particles dispersed in the silica gel matrix. ZnO-nCuSi demonstrated strong in vitro antimicrobial properties against several model plant bacterial species. Two consecutive year field efficacy results showed that agri-grade ZnO-nCuSi was effective in controlling citrus canker disease at less than half the metallic rate of the commercial cuprous oxide/zinc oxide pesticide.
Publication Date
7-5-2018
Publication Title
Journal of Agricultural and Food Chemistry
Volume
66
Issue
26
Number of Pages
6604-6608
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1021/acs.jafc.7b02526
Copyright Status
Unknown
Socpus ID
85047453950 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/85047453950
STARS Citation
Young, Mikaeel; Ozcan, Ali; Myers, Monty E.; Johnson, Evan G.; and Graham, James H., "Multimodal Generally Recognized As Safe Zno/Nanocopper Composite: A Novel Antimicrobial Material For The Management Of Citrus Phytopathogens" (2018). Scopus Export 2015-2019. 10213.
https://stars.library.ucf.edu/scopus2015/10213