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Signaling in the phytomicrobiome: Breadth and Potential

By Donald Lawrence Smith, Sowmya eSubramanian, John Robert Lamont and Margaret eBywater-Ekegärd

Abstract

Higher plants have evolved intimate, complex, subtle and relatively constant relationships with a suite of microbes, the phytomicrobiome. Over the last few decades we have learned that plants and microbes can use molecular signals to communicate. This is well established for the legume-rhizobia nitrogen-fixing symbiosis, and reasonably elucidated for mycorrhizal associations. Bacteria within the phytomircobiome communicate among themselves through quorum sensing and other mechanisms. Plants also detect materials produced by potential pathogens and activate pathogen-response systems. This intercommunication dictates aspects of plant development, architecture and productivity. Understanding this signaling via biochemical, genomics, proteomics and metabolomic studies has added valuable knowledge regarding development of effective, low-cost, eco-friendly crop inputs that reduce fossil fuel intense inputs. This knowledge underpins phytomicrobiome engineering: manipulating the beneficial consortia that manufacture signals/products that improve the ability of the plant-phytomicrobiome community to deal with various soil and climatic conditions, leading to enhanced overall crop plant productivity

Topics: crop, holobiont, Plant growth promoting rhizobacteria, Molecular signals, phytomicrobiome, Plant culture, SB1-1110
Publisher: Frontiers Media S.A.
Year: 2015
DOI identifier: 10.3389/fpls.2015.00709
OAI identifier: oai:doaj.org/article:d68d8b980fe447009c3761e8708e3305
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