Abstract
Rice is one of the most important food and work supplies worldwide, besides that it is highly consumed. As a sustainable agriculture strategy, crop yield increments have been encouraged through combining chemical fertilizers and biofertilizers adequately. In this sense, the application of microbial inoculants has been proved as an ecological alternative to preserve the environment and ecosystem. The Plant Growth Promoting Bacteria (PGPB) are among the main groups of microorganisms used with this purpose, due to their abilities of interacting with plants through different mechanisms of action, such as phytohormone production, biological nitrogen fixation and pathogen biocontrol. The aim of this work was to review the importance of employing PGPB, dealing with some relevant subjects, such as their isolation and identification methods, as well as their main mechanisms of action, showing their potential to be used in an essential crop like rice.
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