Bradyrhizobium japonicum (B. japonicum) and legumes live in mutually beneficial symbiosis. The legumes produce organic matter through photosynthesis, which is partly supplied to the rhizobia, and the ammonia produced by the B. japonicum through biological N fixation is supplied to the legumes.
CD BioSciences provides an advanced technology platform for B. japonicum-based PGPR (Plant Growth Promoting Rhizobacteria) screening service. Hoping to find antagonistic strains. Our MicroScanTM technology platform is development to meet customer's personalized customization needs.
Overview of B. japonicum
Basics about B. japonicum
- B. japonicum is one of the Gram-negative, rod-shaped bacteria. It is common referred to as Rhizobium.
- Each species can only form Bradyrhizobium on one or several leguminous organisms, establishing a symbiotic relationship and exhibiting their own specificity.
Colonization of Plant Roots by B. japonicum
- B. japonicum invade the host root and stimulate certain cells of the root cortex and mesocolonial sheath, causing strong growth of these cells and local expansion of the root to form a rhizome.
- The Bradyrhizobium settles in the root, the plant supplies the rhizobia with mineral nutrients and energy, and the rhizobia fix free N in the atmosphere to provide N nutrients for the plant, and the two are in equilibrium in the antagonistic parasitic relationship and show symbiosis.
The Biological Activity of B. japonicum
Biological N Fixation
B. japonicum, in mutually beneficial symbiosis with host plants, can reduce free N in the air to ammonia by their own N-fixing enzymes at low oxygen concentrations. In this way, it provides an adequate source of N for the host plant.
Regulating Plant Growth
B. japonicum, promote the growth of plant roots and above-ground parts by secreting growth hormones and growth regulators. B. japonicum produce many natural hormones during growth and survival, such as growth hormone, indole acetic acid, cytokinin, gibberellin and growth regulator, etc.
Improving Plant Resilience
B. japonicum can secrete P-glycoprotein bioactive molecules containing unique ability to diminish oxidative stress. They are colonized in plant tissues and can repair fungicide polluted soils and improve the host plant's resistance.
Our Services
CD BioSciences provides plant growth promoting rhizobacteria screening service using B. japonicum 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.
References
- Boiero, L. et al. (2007). "Phytohormone production by three strains of Bradyrhizobium japonicum and possible physiological and technological implications." Applied microbiology and biotechnology. 74 (4).
- Shahid, M. and M. S. Khan. (2019). "Fungicide tolerant Bradyrhizobium japonicum mitigate toxicity and enhance greengram production under hexaconazole stress." J Environ Sci (China). 78: 92-108.