Jha Et Al


Jha et al

Journal of  Agricultural Sciences

Vol. 3 (
2), pp.073-084,
February 2013

 ISSN: 2276-7770 




DOI: http://dx.doi.org/10.15580/GJAS.2013.2.010313354


Association of Rhizospheric/Endophytic Bacteria with Plants: A
Potential Gateway to Sustainable Agriculture


*Prabhat N Jha, Garima Gupta, Prameela Jha

Rajesh Mehrotra


Department of Biological Sciences, Birla Institute of
Technology and Science, Pilani-333031 Rajasthan, India


Author’s Email:

prabhatjha @
Tel.: +91 1596 245073 273

Fax: +91
1596 244183.


Application of associative bacteria for sustainable
agriculture holds immense potential. These bacteria are
known to enhance growth and yield of plants by fixing
atmospheric nitrogen, solubilization of phosphate,
production of phytohormones and siderophores, possession of
antagonistic activity as well as reducing the level of
stress ethylene in host plants. Colonization of these
bacteria can be tracked by tagging them with certain
molecular markers such as β-glucuronidase (gus) or green
fluorescent protein (gfp) followed by electron microscopy or
laser scanning confocal microscopy. Associative bacteria and
endophytes may express genes differentially to colonize and
establish the plant interior. They may also use ‘quorum
sensing’ molecules for colonization process. Present review
aims to highlight various plant growth promoting properties,
ecology and updates of molecular mechanisms involved in
interaction between associative bacteria and plants as well
as immune responses triggered by these bacteria in plants.

Keywords: Associative bacteria, endophyte,
diazotrophy, biocontrol, induced systemic tolerance, induced
systemic resistance.


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