Pathogen-induced changes in the antioxidant status of the apoplast in barley leaves

Plant Physiology
H VanackerC H Foyer

Abstract

Leaves of two barley (Hordeum vulgare L.) isolines, Alg-R, which has the dominant Mla1 allele conferring hypersensitive race-specific resistance to avirulent races of Blumeria graminis, and Alg-S, which has the recessive mla1 allele for susceptibility to attack, were inoculated with B. graminis f. sp. hordei. Total leaf and apoplastic antioxidants were measured 24 h after inoculation when maximum numbers of attacked cells showed hypersensitive death in Alg-R. Cytoplasmic contamination of the apoplastic extracts, judged by the marker enzyme glucose-6-phosphate dehydrogenase, was very low (less than 2%) even in inoculated plants. Dehydroascorbate, glutathione, superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase, monodehydroascorbate reductase, and dehydroascorbate reductase were present in the apoplast. Inoculation had no effect on the total foliar ascorbate pool size or the redox state. The glutathione content of Alg-S leaves and apoplast decreased, whereas that of Alg-R leaves and apoplast increased after pathogen attack, but the redox state was unchanged in both cases. Large increases in foliar catalase activity were observed in Alg-S but not in Alg-R leaves. Pathogen-induced increases in the apoplastic...Continue Reading

References

Dec 8, 1995·The Journal of Biological Chemistry·T RussoE Appella
Aug 1, 1994·Journal of Bioenergetics and Biomembranes·O Arrigoni
Feb 1, 1993·Trends in Biochemical Sciences·A W Segal, A Abo
Jan 15, 1996·FEBS Letters·H MehlhornC H Foyer
Sep 1, 1996·The Plant Journal : for Cell and Molecular Biology·Q J GroomJ D Jones
Jan 1, 1996·Trends in Microbiology·R Mittler, E Lam
Mar 15, 1997·The Biochemical Journal·P Wojtaszek
Aug 1, 1996·Plant Physiology·A. JamaiS. Delrot
Jun 1, 1994·Plant Physiology·M. C. Mehdy
Jun 1, 1997·Annual Review of Plant Physiology and Plant Molecular Biology·Chris Lamb, Richard A. Dixon
Sep 1, 1988·Proceedings of the National Academy of Sciences of the United States of America·M DronC J Lamb

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Citations

Feb 27, 2010·Protoplasma·Bernd Zechmann, Maria Müller
May 23, 2009·Environmental Science and Pollution Research International·Peter SchröderChristian Huber
May 15, 2009·Environmental Science and Pollution Research International·Lyudmila LyubenovaPeter Schröder
Jun 25, 2010·Environmental Science and Pollution Research International·Bernadett BarthaPeter Schröder
Feb 9, 2011·Environmental Science and Pollution Research International·Rachel Dosnon-OlettePhilippe Eullaffroy
Mar 17, 2000·Biochimica Et Biophysica Acta·J Hernández-RuizM B Arnao
Sep 30, 2000·Plant Science : an International Journal of Experimental Plant Biology·A RanieriG F Soldatini
Jul 13, 2001·Plant Science : an International Journal of Experimental Plant Biology·E Kuzniak, M Skl&z shtsls;odowska
Apr 12, 2001·Plant Science : an International Journal of Experimental Plant Biology·A AcevedoM L. Federico
Jun 6, 2000·Trends in Plant Science·N HoremansH Asard
Jul 23, 2003·Current Opinion in Plant Biology·Cristina Pignocchi, Christine H Foyer
Jan 1, 2000·Molecular Plant Pathology·M F Lyngkjær, T L Carver
Jan 1, 2002·Molecular Plant Pathology·Sabine MoorePaul Tudzynski
Apr 26, 2012·Antioxidants & Redox Signaling·Yves MeyerChristophe Riondet
Nov 20, 2002·Molecular Plant-microbe Interactions : MPMI·Reza ZareiePeter J Murphy
Jan 5, 2006·Genome Génome / Conseil National De Recherches Canada·Wenchun ZhouDean E Riechers
Mar 14, 2007·Annual Review of Phytopathology·Ralph Hückelhoven
Nov 1, 2012·Proteome Science·Tomoya AsanoTakumi Nishiuchi
Feb 4, 2012·The Arabidopsis Book·Graham NoctorChristine H Foyer
Feb 13, 2001·Biochemical and Biophysical Research Communications·Y SakihamaH Yamasaki
Nov 26, 2013·Chemosphere·Petr SoudekTomaš Vaněk
Jun 13, 2002·Physiologia Plantarum·Hannes KollistElina Vapaavuori
Mar 10, 2001·Physiologia Plantarum·J. A. HernándezF. Sevilla
Oct 17, 2014·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Shekhar MallickVivek Srivastav
Sep 27, 2000·Critical Reviews in Biochemistry and Molecular Biology·N Smirnoff, G L Wheeler
Dec 5, 2012·Journal of Plant Physiology·Cristina SgherriMike F Quartacci
Oct 1, 2011·Phytochemistry·Amira MohebFathey Sarhan

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