Contrasting nutrient-disease relationships: Potassium gradients in barley leaves have opposite effects on two fungal pathogens with different sensitivities to jasmonic acid.

Plant, Cell & Environment
Jayne L DavisAnna Amtmann

Abstract

Understanding the interactions between mineral nutrition and disease is essential for crop management. Our previous studies with Arabidopsis thaliana demonstrated that potassium (K) deprivation induced the biosynthesis of jasmonic acid (JA) and increased the plant's resistance to herbivorous insects. Here, we addressed the question of how tissue K affects the development of fungal pathogens and whether sensitivity of the pathogens to JA could play a role for the K-disease relationship in barley (Hordeum vulgare cv. Optic). We report that K-deprived barley plants showed increased leaf concentrations of JA and other oxylipins. Furthermore, a natural tip-to-base K-concentration gradient within leaves of K-sufficient plants was quantitatively mirrored by the transcript levels of JA-responsive genes. The local leaf tissue K concentrations affected the development of two economically important fungi in opposite ways, showing a positive correlation with powdery mildew (Blumeria graminis) and a negative correlation with leaf scald (Rhynchosporium commune) disease symptoms. B. graminis induced a JA response in the plant and was sensitive to methyl-JA treatment whereas R. commune initiated no JA response and was JA insensitive. Our study...Continue Reading

References

Dec 1, 1994·The Plant Journal : for Cell and Molecular Biology·B ChaudhryJ Mundy
Jul 19, 1994·Proceedings of the National Academy of Sciences of the United States of America·S ReinbotheB Parthier
Jul 1, 1997·Genes & Development·Y YangD F Klessig
Sep 17, 1996·Proceedings of the National Academy of Sciences of the United States of America·D J WalkerA J Miller
Feb 15, 2003·Plant Physiology·David E CardenAnthony J Miller
Jun 3, 2004·Proceedings of the National Academy of Sciences of the United States of America·Ryoung Shin, Daniel P Schachtman
Aug 20, 2004·Nature·Pietro PiffanelliRalph Panstruga
Jan 26, 2005·Pest Management Science·Tracy Cowley, Dale Walters
Aug 5, 2005·Annual Review of Phytopathology·Jane Glazebrook
May 4, 2006·Annual Review of Plant Biology·Barbara Ann Halkier, Jonathan Gershenzon
Jan 12, 2007·Proceedings of the National Academy of Sciences of the United States of America·William TrumanMurray Grant
Jan 27, 2007·The Plant Journal : for Cell and Molecular Biology·Gustavo BonaventureEdward E Farmer
Jun 29, 2007·Trends in Plant Science·Massimo E MaffeiWilhelm Boland
Oct 2, 2007·Current Opinion in Plant Biology·Gary Loake, Murray Grant
Nov 22, 2007·The Plant Journal : for Cell and Molecular Biology·Stefanie RanfPetra Dietrich
Mar 12, 2008·Physiologia Plantarum·Anna AmtmannPatrick Armengaud
Apr 9, 2008·Plant Physiology·Kemal Kazan, John M Manners
Mar 21, 2009·The Plant Journal : for Cell and Molecular Biology·Diana BeyhlRainer Hedrich
Jun 2, 2009·Current Opinion in Plant Biology·Alison J Karley, Philip J White
Jun 6, 2009·Current Opinion in Plant Biology·Anna Amtmann, Patrick Armengaud
Jun 10, 2009·Proceedings of the National Academy of Sciences of the United States of America·Ronan SulpiceMark Stitt
Sep 1, 2009·The Plant Cell·Jianbin YanDaoxin Xie
Mar 3, 2010·Molecular Plant-microbe Interactions : MPMI·Sabine SeeholzerPaul Schulze-Lefert
Jul 6, 2010·Trends in Microbiology·Adrian C NewtonTim J Daniell
Aug 13, 2010·BMC Plant Biology·Stephanie TroufflardPatrick Armengaud

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Citations

Mar 12, 2019·Journal of Experimental Botany·Tom N HartleyFrans J M Maathuis
Jan 10, 2020·Environmental and Molecular Mutagenesis·Rajnesh Kumar SharmaAman Kumar Sharma
Nov 15, 2020·Journal of Experimental Botany·Marco ZarattiniMathilde Fagard

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Datasets Mentioned

BETA
AJ308488
AK32687

Methods Mentioned

BETA
PCR

Software Mentioned

Genstat
BLAST
ImageJ
Minitab
Opticon Monitor

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