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Trends in plant science, 2017-12, Vol.22 (12), p.1069-1079
Ort / Verlag
England: Elsevier Ltd
Erscheinungsjahr
2017
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
Crop diseases cause enormous yield losses and threaten global food security. The use of highly resistant cultivars can effectively control plant diseases, but in crops, genetic immunity to disease often comes with an unintended reduction in growth and yield. Here, we review recent advances in understanding how nucleotide-binding domain, leucine-rich repeat (NLR) receptors and cell wall-associated kinase (WAK) proteins function in balancing immunity and yield. We also discuss the role of plant hormones and transcription factors in regulating the trade-offs between plant growth and immunity. Finally, we describe how a novel mechanism of translational control of defense proteins can enhance immunity without the reduction in fitness.
High yield and immunity to pathogens are important objectives in plant breeding. However, plant growth and immunity pathways are intertwined and usually antagonistic.
Hormones are important for plant growth; however, activation of immunity redirects and initiates hormone signaling that can impair plant growth.
Transcription factors act as molecular integrators to regulate the trade-offs between immunity and growth. NLR and WAK immune receptors play dual roles in immunity and yield.
Pathogen-inducible translational control strategies can enhance plant immunity without fitness costs.
New breeding strategies should be developed to enhance immunity without sacrificing fitness and yield.