Plant beneficial bacteria from rhizosphere as biocontrol agents of phytopathogens

Short Communications | Published:

Print ISSN : 0970-4078.
Online ISSN : 2229-4473.
Pub Email:
Doi: 10.1007/s42535-022-00555-4
First Page: 1566
Last Page: 1569
Views: 1370

Keywords: Plant Growth Promoting Rhizobacteria, Biocontrol, Antagonism, Allelochemicals


Bacteria present in the rhizosphere can be beneficial for the plant, called: Plant Growth Promoting Rhizobacteria (PGPR). They are able to promote directly the growth of plants (biofertilization and phytostimulation) or indirectly by protecting the plant (biocontrol) against diseases of different origins; biotic like bacterial, fungal, viral or parasitic and/or abiotic like environmental stress. Biocontrol mainly involves the production of inhibitory susbtance by the so-called antagonistic biocontrol agents (BCA) through antibiosis phenomenon, lytic enzymes, siderophores, biofilm formation, competition and allelochemicals. Therefore, this short communication focus on the biocontrol aspect and different mechanisms of action of PGPR to manage plant diseases.

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Author Information

Benaissa Asmaa
Laboratory of Biology and Physiology of Organisms, Faculty of Biological Sciences, USTHB - Bab Ezzouar, Algiers, Algeria