Journal of Biological Control
  • Year: 2007
  • Volume: 21
  • Issue: 1

Role of antagonistic bacteria in suppression of bakanae disease of rice caused by Fusarium moniliforme Sheld

  • Author:
  • M. Nagaraj Kumar, G. S. Laha, C. S. Reddy
  • Total Page Count: 8
  • Page Number: 97 to 104

Department of Plant Pathology, Directorate of Rice Research (JCAR), Rajendranagar, Hyderabad, 500 030, Andhra Pradesh E-mail: lahags@yahoo.co.in

Abstract

Nine selected bacteria were tested for their antagonistic activity against Fusarium moniliforme, causing bakanae disease of rice. The bacteria significantly suppressed the growth of the fungus in dual culture. The bacteria produced varying amounts of lytic enzymes (chitinase and b-l-3-glucanase), siderophores, salicylic acid and hydrogen cyanide. In greenhouse experiments, the antagonist B-44 was most effective in reducing the bakanae disease infected seedlings followed by PF-9 and PF-13.

Keywords

Antagonistic bacteria, Bakanae disease, Fusarium moniliforme, rice