Journal of
Agricultural Biotechnology and Sustainable Development

  • Abbreviation: J. Agric. Biotech. Sustain. Dev.
  • Language: English
  • ISSN: 2141-2340
  • DOI: 10.5897/JABSD
  • Start Year: 2009
  • Published Articles: 143

Article in Press

Growth inhibitory properties of Pseudomonas fluorescens against wheat pathogen fungus

Geetika Vajpayee, Sugandha Asthana, Shanthy Sundaram

Pseudomonas species possess a variety of promising properties of antifungal and growth promoting activities in wheat plant. The present study focuses on the variety of promising properties of the bacteria which grows at an optimum temperature of 25ºC; this makes it a better bio control agent. Different gram positive and gram negative bacteria were tested against wheat pathogenic fungi, T. indica for their antagonistic effects. The growth of T. indica was measured for 14 days. The results indicated that Pseudomonas fluorescens inhibited the growth of T. indica by 82.5%. The secondary metabolites extracted from the bacteria were tested for their antifungal activity against T. indica. The production of various antifungal metabolites like hydrogen cyanide, hydrolytic enzymes, iron- chelating siderophores and other fungicidal potentials from the bacteria makes it an effective bio-fungicide against phytopathogenic fungi. Thus, these promising properties of P. fluorescens obtained from the present study may be commercially formulated as effective biocontrol agent for the management soil-borne fungal pathogen of wheat. Key words: Biocontrol, Karnal bunt, Pseudomonas fluorescens, Tilletia indica, wheat

Keywords: Biocontrol, Karnal bunt, Pseudomonas fluorescens, Tilletia indica, wheat