Written in English
|Statement||by Shelley Diane Leben.|
|The Physical Object|
|Pagination||viii, 65 leaves, bound :|
|Number of Pages||65|
Pseudomonas fluorescens is an aerobic, gram-negative, ubiquitous organism present in agricultural soils and well adapted to grow in the rhizosphere. This rhizobacterium possesses many traits to act as a biocontrol agent and to promote the plant growth ability. It grows rapidly in vitro and can be mass- by: Hossain M. () The Antagonistic Effects of Fluorescent Pseudomonas Spp. on Plant Growth and the Control of Softrot and Blackleg of Potato. In: Civerolo E.L., Collmer A., Davis R.E., Gillaspie A.G. (eds) Plant Pathogenic Bacteria. Current Plant Science and Author: M. Hossain. PDF | Effect of isolates of bacteria from cucumber rhizosphere were studied as potential biocontrol agents for control of cucumber wilt disease | Find, read and cite all the research you. Five pre-selected bacterial isolates and four plant extracts (canola, rapeseed, seaweed, and Canada milkvetch) were tested, under both growth room and field conditions during two growing seasons at two locations, for their ability to protect two potato cultivars (Russet Burbank, moderately susceptible and Kennebec, highly susceptible) against Verticillium dahliae.
Aims: A screening approach was developed to assess the potential of rhizobacterial strains to control Verticillium wilt caused by Verticillium dahliae Kleb. Methods and Results: Sixty randomly chosen antagonistic bacterial strains originally isolated from rhizosphere of three different host plants of V. dahliae – strawberry, potato and oilseed rape – were evaluated for biocontrol and plant. The effect of the culture filtrate for isolates of Bacillus megaterium, B. pumilus, B. subtilis, Pseudomonas fluorescens and on the linear growth of V. dahliae was tested using the method by Dennis et al. 12 One hundred ml. of nutrient peptone medium were put in ml flasks and sterilized by steamer for three successive days. The. Many plant-associated Pseudomonas promote plant growth by suppressing pathogenic micro-organisms, synthesizing growth-stimulating plant hormones and promoting increased plant disease resistance. Others inhibit plant growth and cause disease symptoms ranging from rot and necrosis through to developmental dystrophies such as galls. Control of Rhizoctonia solani on Cotton Seedlings with Pseudomonas fluorescens and With an Antibiotic Produced by the Bacterium C. R. Howell and R. D. Stipanovic Research plant pathologist and research chemist, respectively, U.S. Department of Agriculture, Science and Education Administration, and Verticillium dahliae. A Fusarium sp. was.
The present study evaluated the effects of Pseudomonas fluorescens, P. aeruginosa, P. putida, and P. cepacia on tomato early blight pathogen and . The colonization process of Olea europaea by the defoliating pathotype of Verticillium dahliae, and the in planta interaction with the endophytic, biocontrol strain Pseudomonas fluorescens PICF7 were determined. Differential fluorescent protein tagging was used for the simultaneous visualization of P. fluorescens PICF7 and V. dahliae in olive tissues. To study the effect of plant species on the abundance and diversity of bacterial antagonists, the abundance, the phenotypic diversity, and the genotypic diversity of rhizobacteria isolated from potato, oilseed rape, and strawberry and from bulk soil which showed antagonistic activity towards the soilborne pathogen Verticillium dahliae Kleb. were analyzed. and B8 did not significantly reduce the disease. In general, P. fluorescens isolates were more effective than Bacillus isolates. This study suggests that bacterial antagonists might be potential biological control agents of cotton. Key words: Bacillus subtilis, B. coagulans, B. polymyxa, Cotton, Pseudomonas fluorescens, Verticillium dahliae.