Language of plant-microbe-microbe interactions in rhizospheric ecosystems

Abstract The growth of rhizospheric micro-organisms is regulated by the phytoproducts excreted from plant roots. This excretion of phytochemicals alters the chemistry of rhizospheric soil, and also commands the fate of linked organisms and vice versa. In the same way, microbial signals form rhizosphere also play a vital role in plant growth, development and metabolic processes. It is an evident fact that, in natural environment microbes functions as community that lives in multiple ecological niches. The rising awareness and concern of people about the side effects of agrochemicals, forced the scientific communities to improvise their understanding of co-operative activities among plants and rhizospheric microbial populations. This chapter gives a better understanding of processes such as stimulation of microbial activity by root exudates, competition between microorganisms and roots for nutrients, molecular talk amongst microorganisms, and between roots and microorganisms. Various positive and negative plant-microbe-microbe interactions are highlighted that should be considered for the development of efficient bioformulations with global applicability.