Pseudomonas fluorescens (P. fluorescens) is a symbiotic bacterium that grows on the leaves and roots of plants. It helps plants obtain key nutrients, degrade pollutants in the environment, and suppress pathogens.
P. fluorescens plays an important role in control of agricultural diseases. Its study is interesting. CD BioSciences provides an advanced technology platform for P. fluorescens-based PGPR (Plant Growth Promoting Rhizobacteria) screening service. Our MicroScanTM technology platform is development to meet customer's personalized customization needs.
Overview of P. fluorescens
- Basics about P. fluorescens
P. fluorescens is a Gram-negative bacterium that was first isolated from agricultural soil. Its optimal growth temperature is between 25-30°C. When in a low iron environment, P. fluorescens is able to secrete a soluble fluorescein, a pigment called pyoverdin that acts as a siderophore. P. fluorescens contains abundant flagella with a very rich metabolic profile.
- Colonization of Plant by P. fluorescens
P. fluorescens reaches the root surface, wraps around the entire root periderm in pairs, and then densely covers the entire root system, colonizing the root surface. It then invades in an active manner, infesting from the roots all the way to the leaves and other parts, exerting a probiotic effect.
The Biological Activity of P. fluorescens
Production of Secondary Metabolites
P. fluorescens can produce a rich variety of secondary metabolites. It produces antibiotics, such as phenazine-1-carboxylic acid pyocyanin, pyrrolnitrin and 2,4-diacetylphloroglucinol, which have antibacterial, antifungal and anthelmintic effects. The metabolite of plant antioxidant pyrroloquinoline quinone (PQQ) is produced to enhance plant health. In addition, it inhibits the growth of harmful bacteria by limiting iron availability.
Promoting Plant Growth
Plant growth hormones are important for the regulation of plant growth. P. fluorescens can produce phytohormones such as indoleacetic acid (IAA), cytokinin, gibberellins, and inhibitors of ethylene production. These phytohormones help host plants resist environmental stress and promote the ability of plant roots to absorb water and nutrients.
Induction of Systemic Resistance in Plants
The colonization of roots by P. fluorescens resulted in enhanced host physiological tolerance, cell wall strengthening, increased production of various defense enzymes, etc., which in turn induced ISR production in host plants such as tobacco, cucumber, and tomato.
Our Service
CD BioSciences provides plant growth promoting rhizobacteria screening service using P. fluorescens as an indicator strain. Our MicroScanTM technology platform can discovery bacteria strains that promote the growth of the indicator strain, which together can be further developed as plant growth promoting rhizobacteria. This platform provides a new approach for screening and detecting microbial interactions and it can be applied to any microbial flora. The platform provides technical support for scientific research and agricultural development.
- Single Bacteria Strain Discovery
Identifying single bacterial stains that can be mixed with B. subtilis - Combination of Bacteria Strains Discovery
Identifying a mixture of bacteria strains that can be mixed with B. subtilis
Features of Our Services
 Accelerating Innovation |
 Convenience for Customers |
 High Quality Results |
| The platform will accelerate innovative research on plant growth promoting rhizobacteria. | Complete one-stop service is provided. Convenience for your staff. Simplify the lab. | Streamline your workflow, reduce costs and time, and deliver high quality results. |
CD BioSciences is committed to providing professional and efficient service to our customers around the world. As a pioneer in biotechnology, CD BioSciences has grown into one of the largest independent biotechnology companies in the world. If you are interested in our service, please contact us.
Reference
- Jain, A. and S. Das. (2016). "Insight into the Interaction between Plants and Associated Fluorescent Pseudomonas spp." International Journal of Agronomy. 2016.