Root microbiota drive direct integration of phosphate stress and immunity

Gabriel Castrillo, Paulo José Pereira Lima Teixeira, Sur Herrera Paredes, Theresa F. Law, Laura De Lorenzo, Meghan E. Feltcher, Omri M. Finkel, Natalie W. Breakfield, Piotr Mieczkowski, Corbin D. Jones, Javier Paz-Ares, Jeffery L. Dangl*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

583 Scopus citations


Plants live in biogeochemically diverse soils with diverse microbiota. Plant organs associate intimately with a subset of these microbes, and the structure of the microbial community can be altered by soil nutrient content. Plant-associated microbes can compete with the plant and with each other for nutrients, but may also carry traits that increase the productivity of the plant. It is unknown how the plant immune system coordinates microbial recognition with nutritional cues during microbiome assembly. Here we establish that a genetic network controlling the phosphate stress response influences the structure of the root microbiome community, even under non-stress phosphate conditions. We define a molecular mechanism regulating coordination between nutrition and defence in the presence of a synthetic bacterial community. We further demonstrate that the master transcriptional regulators of phosphate stress response in Arabidopsis thaliana also directly repress defence, consistent with plant prioritization of nutritional stress over defence. Our work will further efforts to define and deploy useful microbes to enhance plant performance.

Original languageAmerican English
Pages (from-to)513-518
Number of pages6
Issue number7646
StatePublished - 23 Mar 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.


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