Beneficial bacteria of agricultural importance

  title={Beneficial bacteria of agricultural importance},
  author={O. Babalola},
  journal={Biotechnology Letters},
  • O. Babalola
  • Published 16 July 2010
  • Biology, Medicine
  • Biotechnology Letters
The rhizosphere is the soil–plant root interphase and in practice consists of the soil adhering to the root besides the loose soil surrounding it. Plant growth-promoting rhizobacteria (PGPR) are potential agents for the biological control of plant pathogens. A biocontrol strain should be able to protect the host plant from pathogens and fulfill the requirement for strong colonization. Numerous compounds that are toxic to pathogens, such as HCN, phenazines, pyrrolnitrin, and pyoluteorin as well… 
Plant Beneficial Rhizospheric Microbes (PBRMs): Prospects for Increasing Productivity and Sustaining the Resilience of Soil Fertility
The efficient microorganisms in the vicinity of plant roots that exert positive effects on plant growth are known as plant beneficial rhizospheric microbes (PBRMs). One of the salient features for
Plant Growth-Promoting Rhizobacteria as Biological Tools for Nutrient Management and Soil Sustainability
This chapter presents a detailed insight into the mechanisms utilized by PGPR in rhizosphere to boost plant growth and some factors that affect PGPR-plant associations are elaborated.
Plant health: feedback effect of root exudates-rhizobiome interactions
To optimize the growth and productivity of host plants, rhizobiome microbial diversity and modulatory techniques need to be clearly understood for improved plant health.
Plant Growth-Promoting Rhizobacteria: Harnessing Its Potential for Sustainable Plant Disease Management
This review helps in understanding the dynamics and existence of PGPR in the soil, their role in disease management, and their interaction with the pathogens which explore the possibility of identifying new proteins/genes in host-pathogen interaction.
Isolation of bacterial strains for improved maize production
To get the best out of the host plants, research should be directed towards understanding the rhizobiome diversity in the plant’s rhizosphere, so that the best modulatory methods and techniques for the rhzobiome for improved plant health can be well understood.
Plant Growth-Promoting Rhizobacteria: Context, Mechanisms of Action, and Roadmap to Commercialization of Biostimulants for Sustainable Agriculture
The concept and role of the phytomicrobiome and the agricultural context underlying food security in the 21st century are introduced and mechanisms of plant growth promotion by PGPR are discussed, including signal exchange between plant roots and PGPR and how these relationships modulate plant abiotic stress responses via induced systemic resistance.
Rhizobacteria from Rhizosphere of Sunflower ( Helianthus annuus L.) and their effect on Plant Growth
Rhizosphere harbors a vast population of bacteria; among them a beneficial group is the Plant Growth Promoting Rhizobacteria (PGPR) that help plant growth promotion and these bacteria mainly belonged to the Azotobacter, Pseudomonads, and the Bacillus group.
Applications of beneficial plant growth promoting rhizobacteria and mycorrhizae in rhizosphere and plant growth: A review
This research reviewed the role of single and combination of PGPR, mycorrhizal fungi in plant development and modulation of the stress as well as factors affecting the microbiome in the rhizosphere.
Phosphorus disequilibrium in the tripartite plant-ectomycorrhiza-plant growth promoting rhizobacterial association
As a metaorganism, the tripartite ectomycorrhizas increase the ecological breadth of host trees and influence the structure and function of forested ecosystems.
Antagonistic features displayed by Plant Growth Promoting Rhizobacteria (PGPR): A Review
This review highlights the antagonistic feature of Plant Growth Promoting Rhizobacteria (PGPR), which could be used as biopesticides and biofertilizers for better plant health and growth improvement.


Effects of inoculation with plant growth-promoting rhizobacteria on resident rhizosphere microorganisms.
Rhizobacterial communities are also affected by the plant, engineered genes, environmental stresses and agricultural practices, and these factors appear to determine community structure more than an exogenous, active PGPR introduced at high levels.
Plant Growth Promoting Properties of Rhizobacteria Isolated from Wheat and Pea Grown in Loamy Sand Soil
The results showed that the colonisation of bacteria was higher in the rhizosphere as compared to the phyllosphere of both plants, which most probably accounted for the overall synergistic effect on growth of peas and wheat.
Interactions of Bacillus spp. and plants--with special reference to induced systemic resistance (ISR).
Screening of free-living rhizospheric bacteria for their multiple plant growth promoting activities.
Inoculation with the Plant-Growth-Promoting Rhizobacterium Azospirillum brasilense Causes Little Disturbance in the Rhizosphere and Rhizoplane of Maize (Zea mays)
A DGGE fingerprint analysis revealed that plant inoculation with A. brasilense had no effect on the structural composition of the bacterial communities, which were also found to be very similar at the root tip and at zones of root branching, however, rhizobacterial populations were strongly influenced by plant age, and their complexity decreased in the rhizoplane–endorhizosphere in comparison to rhizosphere soil.
Gravitational water flow enhances the colonization of spinach roots in soil by plant growth-promoting Pseudomonas
The results indicated that the effect of the gravitational water flow by irrigation is important for the spread of colonization of spinach roots by Pseudomonas strains.
Efficacy of Plant Growth-Promoting Rhizobacteria, Acibenzolar-S-Methyl, and Soil Amendment for Integrated Management of Bacterial Wilt on Tomato.
This is the first report of Actigard-mediated reduction of bacterial wilt incidence in a susceptible tomato cultivar.
Plant growth-promoting rhizobacteria do not pose any deleterious effect on cowpea and detectable amounts of ethylene are produced
Bacterial type significantly influenced the cowpea varieties with better performance over the non-inoculated control and promoted a significant increase in pod weight, fresh biomass, and improved pod number and pod wall thickness with no deleterious effect on plant health.
It was concluded that coinoculation of V. faba plant roots in oily sand with nodule bacteria and PGPR enhances the phytoremediation potential of this plant for oily desert sand through improving plant growth and nitrogen fixation.
Perspective of plant growth promoting rhizobacteria (PGPR) containing ACC deaminase in stress agriculture
Inoculation with PGPR containing ACC deaminase activity could be helpful in sustaining plant growth and development under stress conditions by reducing stress-induced ethylene production.