SCIENCE@home

Rewiring of jasmonate and phytochrome B signalling uncouples plant growth-defense tradeoffs

M. L. Campos,Yuki Yoshida,I. Major,Dalton de Oliveira Ferreira,Sarathi M. Weraduwage,J. Froehlich,Brendan F. Johnson,D. Kramer,G. Jander,T. Sharkey,G. Howe

Published 2016 in Nature Communications

ABSTRACT

Plants resist infection and herbivory with innate immune responses that are often associated with reduced growth. Despite the importance of growth-defense tradeoffs in shaping plant productivity in natural and agricultural ecosystems, the molecular mechanisms that link growth and immunity are poorly understood. Here, we demonstrate that growth-defense tradeoffs mediated by the hormone jasmonate are uncoupled in an Arabidopsis mutant (jazQ phyB) lacking a quintet of Jasmonate ZIM-domain transcriptional repressors and the photoreceptor phyB. Analysis of epistatic interactions between jazQ and phyB reveal that growth inhibition associated with enhanced anti-insect resistance is likely not caused by diversion of photoassimilates from growth to defense but rather by a conserved transcriptional network that is hardwired to attenuate growth upon activation of jasmonate signalling. The ability to unlock growth-defense tradeoffs through relief of transcription repression provides an approach to assemble functional plant traits in new and potentially useful ways. Plant immune responses are often associated with reduced growth. Here, the authors show that combining mutations in transcriptional repressors of the defense and light perception pathways can confer both robust growth and strong herbivore defense, demonstrating that growth-defense tradeoffs can be uncoupled.

PUBLICATION RECORD

CITATION MAP

EXTRACTION MAP

CLAIMS

  • No claims are published for this paper.

CONCEPTS

  • No concepts are published for this paper.

REFERENCES

Showing 1-71 of 71 references · Page 1 of 1

CITED BY

Showing 1-100 of 364 citing papers · Page 1 of 4

1234
Next