Differential induction of chitinase and Β-1,3-glucanase in response to inoculation with a pathogen (Rhizoctonia solani) and a non-pathogen (Pestalotia palmarum)

R. Velazhahan, S. D. Deborah, A. Palaniswami

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Rice leaf sheaths were inoculated with R. solani (pathogen) and P. palmarum (non-pathogen) and were analyzed for the accumulation of pathogenesis-related (PR) proteins. Inoculation of rice plants with R. solani and P. palmarum resulted in a marked increase in activities of chitinase and β-1.3-glucanase. The levels of both enzymes were higher in incompatible interactions than in compatible interactions. Western blot analysis indicated that two proteins with molecular weights of 33 and 35 kDa cross-reacting with barley chitinase antibody were induced in rice in response to inoculation with R. solani. The appearance of these chitinases was correlated with increase in enzyme activity.

Original languageEnglish
Pages (from-to)67-74
Number of pages8
JournalActa Phytopathologica et Entomologica Hungarica
Issue number1-2
Publication statusPublished - 2001



  • Compatible interaction
  • Incompatible interaction
  • Oryza sativa
  • Pestalotia palmarum
  • PR-proteins
  • Rhizoctonia solani

ASJC Scopus subject areas

  • Plant Science
  • Insect Science

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