title: Bioassimilable sulphur provides effective control of Oidium neolycopersici in tomato, enhancing the plant immune system.
abstract: BACKGROUND
  Developments of alternatives to the use of chemical pesticides to control pests are focused on the induction of natural plant defences. The study of new compounds based on liquid bioassimilable sulphur and its effect as an inductor of the immune system of plants would provide an alternative option to farmers to enhance plant resistance against pathogen attacks such as powdery mildew. In order to elucidate the efficacy of this compound in tomato against powdery mildew, we tested several treatments: curative foliar, preventive foliar, preventive in soil drench and combining preventive in soil drench and curative foliar.
  
  
  RESULTS
  In all cases, treated plants showed lower infection development, better physiological parameters and a higher level of chlorophyll. We also observed better performance in parameters involved in plant resistance such as antioxidant response, callose deposition and hormonal levels.
  
  
  CONCLUSIONS
  The results indicate that preventive and curative treatments can be highly effective for the prevention and control of powdery mildew in tomato plants. Foliar treatments are able to stop the pathogen development when they are applied as curative. Soil drench treatments induce immune response mechanisms of plants, increasing significantly callose deposition and promoting plant development. © 2016 Society of Chemical Industry.
authors: Group of Biochemistry and Biotechnology, Department of Agricultural Sciences, Universitat Jaume I (UJI) of Castellon, c/Vicent Sos Baynat, s/n, 12071, Castellon de la Plana, Spain.
authors: Eugenio
authors: E
authors: Llorens
authors: Research and Development Department, IDAI Nature SL, La Pobla de Vallbona, Valencia, Spain.
authors: Carlos
authors: C
authors: Agustí-Brisach
authors: Group of Biochemistry and Biotechnology, Department of Agricultural Sciences, Universitat Jaume I (UJI) of Castellon, c/Vicent Sos Baynat, s/n, 12071, Castellon de la Plana, Spain.
authors: Ana I
authors: AI
authors: González-Hernández
authors: Group of Biochemistry and Biotechnology, Department of Agricultural Sciences, Universitat Jaume I (UJI) of Castellon, c/Vicent Sos Baynat, s/n, 12071, Castellon de la Plana, Spain.
authors: Pilar
authors: P
authors: Troncho
authors: Group of Biochemistry and Biotechnology, Department of Agricultural Sciences, Universitat Jaume I (UJI) of Castellon, c/Vicent Sos Baynat, s/n, 12071, Castellon de la Plana, Spain.
authors: Begonya
authors: B
authors: Vicedo
authors: Research and Development Department, IDAI Nature SL, La Pobla de Vallbona, Valencia, Spain.
authors: Teresa
authors: T
authors: Yuste
authors: Research and Development Department, IDAI Nature SL, La Pobla de Vallbona, Valencia, Spain.
authors: Mayte
authors: M
authors: Orero
authors: Research and Development Department, IDAI Nature SL, La Pobla de Vallbona, Valencia, Spain.
authors: Carlos
authors: C
authors: Ledó
authors: Group of Biochemistry and Biotechnology, Department of Agricultural Sciences, Universitat Jaume I (UJI) of Castellon, c/Vicent Sos Baynat, s/n, 12071, Castellon de la Plana, Spain.
authors: Pilar
authors: P
authors: García-Agustín
authors: Group of Biochemistry and Biotechnology, Department of Agricultural Sciences, Universitat Jaume I (UJI) of Castellon, c/Vicent Sos Baynat, s/n, 12071, Castellon de la Plana, Spain.
authors: Leonor
authors: L
authors: Lapeña
mesh_terms: D001203:Ascomycota / Q000187:drug effects* / Q000502:physiology*; D002734:Chlorophyll / Q000378:metabolism; D005936:Glucans / Q000378:metabolism; D006861:Hydrogen Peroxide / Q000378:metabolism; D018551:Solanum lycopersicum / Q000187:drug effects* / Q000276:immunology* / Q000378:metabolism / Q000382:microbiology; D010935:Plant Diseases / Q000276:immunology / Q000382:microbiology; D010937:Plant Growth Regulators / Q000378:metabolism; D013455:Sulfur / Q000378:metabolism* / Q000494:pharmacology*
chemical_list: D005936:Glucans; D010937:Plant Growth Regulators; D002734:Chlorophyll; D013455:Sulfur; C048306:callose; D006861:Hydrogen Peroxide
keywords: Oidium neolycopersici; Solanum lycopersicum; bioassimilable sulphur; induced resistance