Plants communicate with neighboring plants and other organisms surrounding them. Aboveground communication is articulated through stems, leaves, or flowers while below-ground communication is mediated by roots. The plant root is capable of secreting chemicals into the rhizosphere through root exudates. The chemical constituents of the root exudates are characteristic of a particular plant species and also depend on the surrounding biotic and abiotic environment. Recent research suggests that the root exudates act as a sort of chemical 'language' between the secreting plant and other organisms in the rhizosphere.