Drought affects plant hormonal homeostasis, including root to shoot signalling. The plant is intimately connected below-ground with soil-dwelling microbes, including plant growth promoting rhizobacteria (PGPR) that can modulate plant hormonal homeostasis. Incorporating PGPR into the rhizosphere often delivers favourable results in greenhouse experiments, while field applications are much less predictable. We review the natural processes that affect the formation and dynamics of the rhizosphere, establishing a model for successful field application of PGPR utilizing an example microbial inoculum, Variovorax paradoxus 5C-2.
Keywords: ACC deaminase; Climate change; Ethylene; Pan-genome; Rhizosphere colonisation; Sustainable agriculture; Variovorax paradoxus.
Copyright © 2019. Published by Elsevier B.V.