Indian Journal of Nematology
SCOPUS
  • Year: 2003
  • Volume: 33
  • Issue: 2

Induction of pathogenesis-related protein by salicylic acid and resistance to root-knot nematode in tomato

  • Author:
  • B. Nandi1, N. C. Sukul1, N. Banewee2, S. Sengupta3, P. Das3, S. P. Sinha Babu1
  • Total Page Count: 5
  • Page Number: 111 to 115

1Department of Zoology, Visva-Bharati University, Santiniketan-731 235, West Bengal.

2Department of Botany, Visva-Bharati University, Santiniketan-731 235, West Bengal.

3National Institute of Cholera and Enteric Diseases, Beliaghata, Calcutta-10.

Abstract

Salicylic acid (SA), dissolved at 10 mM in potassium-phosphate buffer (pH 7) and applied as foliar spray on tomato, inoculated with Meloidogyne incognita, reduced nematode infestation and promoted plant growth. SA did not kill nematodes in an in vitro test. It enhanced synthesis of pathogenesis related-1 (PR-1) protein as compared to uninoculated untreated and inoculated untreated plants. The presence of Tween-20 enhanced the effect of salicylic acid on the accumulation of PR-1 protein. SA treatment has led to a significant increase in resistance to root-knot nematodes.

Keywords

Meloidogyne incognita, pathogenesis-related protein, salicylic acid, systemic acquired resistance, Lycopersicon esculentum