Does a plant-growth promoting rhizobacteria (PGPR) enhance agricultural productivity and sustainability?
Plant Growth Promoting Rhizobacteria (PGPR) are a group
of bacteria that enhances plant growth and yield via various
plant growth promoting substances as well as biofertilizers.
Given the negative environmental impact of artificial fertilizers
and their increasing costs, the use of beneficial soil microorganisms
such as PGPR for sustainable and safe agriculture
has increased globally during the last couple of decades.
PGPR as biofertilizers are well recognized as efficient soil
microbes for sustainable agriculture and hold great promise
in the improvement of agriculture yields
Although the PGPR has been proved to to be useful to enhance the health and the potential production of plant in Lab, there is still a long way to go for agricultural practices beacuse of the existence of uncontrollable and variable enviromental conditions. It has been remianed a nigtmare as how to keep the PGPR more strong competition than native bacteria in soil after inoculation.
https://www.researchgate.net/publication/259428798_PLANT_GROWTH-PROMOTING_BACTERIAL_ENDOPHYTES_FROM_SUGARCANE_AND_THEIR_POTENTIAL_IN_PROMOTING_GROWTH_OF_THE_HOST_UNDER_FIELD_CONDITIONS
Article Plant growth-promoting bacterial endophytes from sugarcane a...
You can ONLY call a bacteria PGPR if it has positive effects. Otherwise is deleterious or pathogen. But inoculation responses are erratic and variables with plant species and environmental conditions.....
yes
PGPR can promot the plant growth and huge number of report are available.
One imp things comes in mind the survivibility of pgpr under field conditions. Our group is working on formulation development of pgpr.still u can have some book chapters and papers on my profile. It will be helpful to u. Also some publication are under review in this aspect so keep looking on it.
Thanks, to all for part of discussion,
The basis for PGPR function, Plant growth promoting rhizobacteria (PGPR) are a group of beneficial microorganisms that have the ability to enhance plant growth and crop yield by various plant growth promoting (PGP) metabolites"),
only metabolites are involved and not effects such as occupying the ground thus not allowing pathogens to thrive. Furthermore, among the activities tested, nitrogen fixation considered one of the main aspects of PGPR
Conversely, cellulase and pectinase were assayed but these should be considered negative activities for PGPR.
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