Pseudomonas fluorescens CHAO colonizes plant roots, produces several secondary metabolites in stationary growth phase, and suppresses a number of plant diseases, including Thielaviopsis basicola-induced black root rot of tobacco. We discovered that mutations in a P. fluorescens gene named gacA (for global antibiotic and cyanide control) pleiotropically block the production of the secondary meta...

Protease producing bacteria was isolated from marine soil sample from Marakkanam Saltern, Tamil Nadu. Based on their morphology, it was identified as Pseudonomonas fluorescens biovar. The bacteria were inoculated in gelatin agar for the production of protease enzyme. The crude enzyme extract was purified by ammonium sulphate precipitation method to obtain 85% saturation. The protease enzyme act...

Pseudomonas fluorescens phages from sewage were tested against P. fluorescens isolates of soil and sewage. The phages were characterized as to host range, morphology, structural proteins and genome fingerprint. Of the seven phages isolated, one was found to be abundant in sewage (5.9×10(7) pfu/mL), having broad host range, and distinct protein and DNA profile when compared to the other six phag...

Cocoa pod anthracnose is an important disease of cocoa and can reduce yields. Many attempts have been made to control rot on pods but not successful yet. This study aimed examine the potency secondary metabolite crude extracts produced by Trichoderma asperellum Pseudomonas fluorescens solely or in combination controlling field at Silo Bonto Village, Asahan Regency, North Sumatera Province. The ...

root-knot nematodes (meloidogyne spp.) are among the most important groups of plant-parasitic nematodes, causing damage and yield losses to most cultivated plants. the bacterium pseudomonas fluorescens cha0 and the fungus trichoderma harzianum bi were investigated for biological control capability and systemic induction of resistance against the nematode m. javanica under glasshouse conditions....