Thrust Area at Plant Pathology

Thrust Area


  • Induction of defense-related proteins and chemicals by fluorescent pseudomonads
  • Basic research on biocontrol agents for effective utilization in ecofriendly disease management
  • Improving the fitness of biocontrol agents by selection
  • Integration of candidate biological control agents under integrated disease management for the management of economically important crop diseases
  • Quality control and registration of new biocontrol agents
  • Strategies to promote commercialization of bioagents viz., Pseudomonas fluorescens, Bacillus subtilis and Trichoderma asperellum
  • Popularization of biocontrol agents


  • Isolation of α-Glucosidase gene from Trichoderma viride for management of rice sheath blight pathogens
  • Exploitation of chitinase gene for the management of rice sheath blight and sheath rot
  • Agrobacterium mediated or biolistic gene transfer of Xa-21 of BLB of rice
  • Cloning of PR-5 (TLP) protein for resistant to rice sheath blight
  • Elicitor of Rhizoctonia solani induced PR-proteins (PR-2 and PR-3)
  • Genetic improvement of bio-control agents viz., Trichoderma viride and Pseudomonas fluorescens


  • Studying the epidemiology of economically important diseases of Tamil Nadu
  • Developing forecast models for the important diseases


  • Cultivation technology developed for oyster mushroom, paddy straw mushroom and button mushroom.
  • Conducting training on “Mushroom cultivation” to farmers every month.
  • Production and distribution of spawns and mother spawns to farmers
  • Strain improvement of mushrooms using biotechnology


  • Post harvest losses of mango, banana and vegetables
  • Standardization of early detection of post harvest diseases
  • Management of post harvest diseases using nonchemical methods especially with the botanicals


  • Monitoring and Identification of important seed-borne pathogen in crop plants
  • Losses due to seed-borne pathogens
  • Disease-free seed production
  • Mycotoxins and their management


  • The virology division of this Department was started as early as 1960 with the development of infrastructure facilities like automated glass house, electron microscope etc.
  • Identification, characterization and biodiversity of new virus diseases affecting major crops (Rice, pulses, oil seeds, vegetables and flowers)
  • Diagnosis of virus diseases (includes immuno and molecular diagnosis)
  • Epidemiology and Management of virus diseases using botanical pesticides (Antiviral principles)
  • Chemical control of vectors transmitting virus diseases