Plant growth promoting rhizobacteria for sustainable agricultural practices with special reference to biotic and abiotic stresses
2018
Shameer, Syed | Prasad, T.N. V. K. V.
The most common, devastating problem in agriculture is plant (pathogenic) diseases and abiotic conditions which have a profound effect on growth and yield of the plant resulting in heavy losses. In order to prevent losses, different chemicals are used indiscriminately, which in turn lead to environmental pollution due to their persistence and toxicity yet employed to meet consumer demand. To fight ever increasing demand and indiscriminate use of chemical agents along with their devastating after effects in agriculture, we need less invasive, eco-friendly and most importantly sustainable practices. Plant growth promoting rhizobacteria (PGPR) influence different physiological activities of the plant through various mechanisms (metabolites, antibiotics, Induced Systemic Resistance and enzymes) and impart protection from pathogens as well as environmental stress factors. But, current applications are limited in this regard as mechanisms involved, field applications variance and lack of farmer awareness contributing majorly. Current review tries to provide comprehensive knowledge on the PGPR’s applications as plant protectant against pathogens & abiotic factors leading to sustainable agricultural practices.
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