Journal of Plant Pathology & Microbiology

Rajyasri Ghosh

Publications

• Research Article
  Enzymatic Responses of Ginger Plants to Pythium Infection after SAR Induction
  Author(s): Rajyasri Ghosh Rajyasri Ghosh
  
  A variety of enzymatic responses of ginger plants to Pythium infection after induction of SAR (systemic acquired resistance) have been investigated. Results of pathogenicity test of P. aphanidermatum on a susceptible ginger cultivar showed that disease intensity increased with time up to 28 days but Polyphenol oxidase (PPO), Lipoxygenase (LOX) and Phenyl alanine ammonia lyase (PAL) activities increased up to 14 days following inoculation and then declined whereas Peroxidase (PO) activity reached their peaks on 21st day after inoculation and then decreased sharply. To induce SAR, rhizome seeds were soaked separately in salicylic acid (SA-5 mM) and Acalypha leaf extract (ALE – 10%) for 1 hour prior to sowing. Significant disease reduction was observed in both SA and ALE treated plants. SA and ALE treatment enhanced activities of all four defence r.. View More»
  DOI: 10.4172/2157-7471.1000283

  Abstract PDF