| Titre |
Plant growth promoting rhizobacteria: Beneficial effects for healthy and sustainable agriculture |
| Auteurs |
Noumavo Agossou Daniel Pacôme [1],
Agbodjato Nadège Adoukè [2],
BABA-MOUSSA FARID [3],
ADJANOHOUN Adolphe [4],
BABA-MOUSSA LAMINE [5],
|
| Journal: |
African Journal of Biotechnology |
| Catégorie Journal: |
|
| Impact factor: |
0 |
| Volume Journal: |
15 |
| DOI: |
10.5897/AJB2016.15397 |
| Resume |
It is unanimously admitted that the chemical fertilizers and pesticides used in modern agriculture create
a real environmental and public health problems. One of the promising solutions to substitute these
agrochemicals products is the use of bio-resources, including plant growth promoting rhizobacteria
(PGPR). The PGPR focused more and more scientific attention in recent decades. These rhizospheric
bacteria colonize actively the root system of plants and improve their growth and yield. The PGPR use
different mechanisms of action to promote plant growth. These mechanisms were grouped into three
clusters according to the PGPR effects on plant physiology. These groups are as follow: (i)
biofertilization including biological fixation of atmospheric nitrogen, phosphate solubilization,
siderophores production and exopolysaccharides production; (ii) phytostimulation including
production of indole acetic acid, gibberellins, cytokinins and ethylene; and (ii) biocontrol including
induction of systemic resistance, competition for iron, nutrient and space, production of antibiotics,
lytic enzymes, hydrogen cyanide and volatile compounds. In view of the latest advances in PGPR
biotechnology, this paper proposes to do the review on PGPR in rhizosphere and describes the
different mechanisms used by PGPR to promote the plants growth and health. In prospect to a healthy
and sustainable agriculture, respectful of environment, the PGPR approach revealed as one of the best
alternatives. |
| Mots clés |
Rhizosphere, plant growth promoting rhizobacteria (PGPR), root colonization, biofertilization,
biocontrol, biostimulation, interaction plant-microorganisms, sustainable agriculture. |
| Pages |
1452 - 1463 |
| Fichier |
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