Journal of Plant Pathology & Microbiology

William-Setzer N

Publications

• Research Article
  Phenylpropanoids Produced by Piper divaricatum, A Resistant Species to Infection by Fusarium solani f. sp. piperis, the Pathogenic Agent of Fusariosis in Black Pepper
  Author(s): Erisléia-Meireles N, Luciana-Xavier P, Alessandra-Ramos R, José-Guilherme MS, William-Setzer N and Kelly-da-Silva JR Erisléia-Meireles N, Luciana-Xavier P, Alessandra-Ramos R, José-Guilherme MS, William-Setzer N and Kelly-da-Silva JR
  
  In a previous study, the essential oil (EO) of Piper divaricatum showed strong antifungal activity in vitro against Fusarium solani F. sp. piperis. For this reason, the seedlings of P. divaricatum were inoculated with the pathogen to evaluate the in-vivo resistance. Evaluation of symptoms and analysis of secondary metabolite production from infected and non-infected plants occurred at 7, 21, 30 and 45 days post inoculation (dpi). Throughout the experiment, the infected seedlings did not display symptoms of infection or significant variation of total phenolic compounds. However, lipoxygenase (LOX) enzymatic activity, which is involved in the defense mechanism, had increased in the 21 and 45 dpi. In addition, the EOs were analyzed by GC-MS. The EOs from infected plants showed a substantial increase in the concentrations of phenylpropanoid .. View More»
  DOI: 10.4172/2157-7471.1000333

  Abstract PDF