title: Chitosan Controls Postharvest Decay on Cherry Tomato Fruit Possibly via the Mitogen-Activated Protein Kinase Signaling Pathway.
abstract: The inhibitive effects of chitosan on gray mold caused by Botrytis cinerea on cherry tomato fruit were evaluated. Decay incidence was tested on tomato stored at 22 °C. Hydrogen peroxide accumulation, malondialdehyde (MDA) production, peroxidase (POD) activity, and several related gene expressions (including MPK3, MPK6, PR1a1, and PR5) were determined. Results showed that 0.2% of chitosan solution significantly inhibited the tomato gray mold 3 days after inoculation. Hydrogen peroxide accumulated in the fruit epidermal peel along with chitosan treatment, while MDA production was not increased. POD activity was remarkably enhanced by the application of chitosan. The relative expressions of MPK3, MPK6, and PR1a1 were significantly induced in 10 min after chitosan treatment, while PR5 was induced in 20 min. These findings suggested that the effects of chitosan on inhibiting gray mold in cherry tomato fruit were probably associated with the mitogen-activated protein kinase (MAPK) signaling pathway.
authors.affiliation: School of Biotechnology and Food Engineering, Hefei University of Technology , 193 Tunxi Road, Hefei, Anhui 230009, People's Republic of China.
authors.forename: Danfeng
authors.initials: D
authors.lastname: Zhang
authors.affiliation: School of Biotechnology and Food Engineering, Hefei University of Technology , 193 Tunxi Road, Hefei, Anhui 230009, People's Republic of China.
authors.forename: Hongtao
authors.initials: H
authors.lastname: Wang
authors.affiliation: School of Biotechnology and Food Engineering, Hefei University of Technology , 193 Tunxi Road, Hefei, Anhui 230009, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hu
authors.affiliation: School of Biotechnology and Food Engineering, Hefei University of Technology , 193 Tunxi Road, Hefei, Anhui 230009, People's Republic of China.
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Liu
mesh_terms: D020171:Botrytis / Q000472:pathogenicity; D048271:Chitosan / Q000494:pharmacology*; D005638:Fruit / Q000187:drug effects / Q000378:metabolism* / Q000382:microbiology; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D006861:Hydrogen Peroxide / Q000378:metabolism; D018551:Solanum lycopersicum / Q000187:drug effects / Q000378:metabolism* / Q000382:microbiology*; D008315:Malondialdehyde / Q000378:metabolism; D020928:Mitogen-Activated Protein Kinases / Q000235:genetics / Q000378:metabolism*; D010544:Peroxidases / Q000378:metabolism; D010935:Plant Diseases / Q000382:microbiology; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000378:metabolism; D015398:Signal Transduction
chemical_list: D010940:Plant Proteins; D017382:Reactive Oxygen Species; D008315:Malondialdehyde; D048271:Chitosan; D006861:Hydrogen Peroxide; D010544:Peroxidases; D020928:Mitogen-Activated Protein Kinases
keywords: MAPK; cherry tomato; chitosan; postharvest