title: Synergistic effects of nanochitin on inhibition of tobacco root rot disease.
abstract: Nanomaterials have great potential for use in various fields, due to their unique properties. In order to explore the bioactivity of nanochitin on tobacco, the effects of nanochitin suspensions on tobacco seed germination, seedling growth, and synergistic effects with fungicides were studied in indoor and field trials. Results showed that 0.004% (w/v) of nanochitin improved tobacco seed germination and shortened mean time to germination significantly; 0.005% (w/v) of nanochitin increased tobacco stem length, stem girth, leaf number and leaf area, and 0.001% (w/v) of nanochitin had synergistic effects on inhibition of tobacco root rot when mixed with metalaxyl mancozeb and thiophanate methyl fungicides. This indicates that nanochitin suspensions have a strong potential to protect tobacco from tobacco root rot diseases and reduce the use of chemical fungicides in tobacco plantations.
authors.affiliation: NanoAgro Center, Henan Agricultural University, Zhengzhou 450002, China; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: NanoAgro Center, Henan Agricultural University, Zhengzhou 450002, China; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Shijun
authors.initials: S
authors.lastname: Jiang
authors.affiliation: College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Yongji
authors.initials: Y
authors.lastname: Jiao
authors.affiliation: NanoAgro Center, Henan Agricultural University, Zhengzhou 450002, China. Electronic address: hezhong.wang@henau.edu.cn.
authors.forename: Hezhong
authors.initials: H
authors.lastname: Wang
mesh_terms: D000818:Animals; D002686:Chitin / Q000737:chemistry* / Q000494:pharmacology* / Q000627:therapeutic use; D004357:Drug Synergism; D005659:Fungicides, Industrial / Q000494:pharmacology*; D005670:Fusarium / Q000502:physiology*; D018525:Germination / Q000187:drug effects; D049329:Nanostructures / Q000737:chemistry*; D010935:Plant Diseases / Q000382:microbiology*; D036226:Seedlings / Q000187:drug effects / Q000254:growth & development; D014026:Nicotiana / Q000187:drug effects / Q000254:growth & development / Q000382:microbiology*
chemical_list: D005659:Fungicides, Industrial; D002686:Chitin
keywords: Nanochitin; Synergistic effect; Tobacco root rot disease