Glutathione redox state, tocochromanols, fatty acids, antioxidant enzymes and protein carbonylation in sunflower seed embryos associated with after-ripening and ageing

Annals of Botany
F MorscherT Roach

Abstract

Loss of seed viability has been associated with deteriorative processes that are partly caused by oxidative damage. The breaking of dormancy, a seed trait that prevents germination in unfavourable seasons, has also been associated with oxidative processes. It is neither clear how much overlap exists between these mechanisms nor is the specific roles played by oxygen and reactive oxygen species. Antioxidant profiles were studied in fresh (dormant) or after-ripened (non-dormant) sunflower (Helianthus annuus) embryos subjected to controlled deterioration at 40 °C and 75 % relative humidity under ambient (21 %) or high O2 (75 %). Changes in seed vigour and viability, dormancy, protein carbonylation and fatty acid composition were also studied. After-ripening of embryonic axes was accompanied by a shift in the thiol-based cellular redox environment towards more oxidizing conditions. Controlled deterioration under high O2 led to a faster loss of seed dormancy and significant decreases in glutathione reductase and glutathione peroxidase activities, but viability was lost at the same rate as under ambient O2. Irrespective of O2 concentration, the overall thiol-based cellular redox state increased significantly over 21 d of controlled d...Continue Reading

References

Jan 21, 2000·Free Radical Biology & Medicine·M J DaviesR T Dean
May 24, 2005·Plant Physiology·Claudette JobDominique Job
Feb 1, 1980·Plant Physiology·R R Stewart, J D Bewley
Jun 21, 2006·Free Radical Biology & Medicine·Ilse KrannerHugh W Pritchard
Mar 23, 2007·The Plant Journal : for Cell and Molecular Biology·Krystyna OraczChristophe Bailly
Oct 18, 2008·Comptes rendus biologies·Christophe BaillyFrançoise Corbineau
Nov 13, 2008·Zeitschrift Für Naturforschung. C, a Journal of Biosciences·Eyup BagciKurt Aitzetmüller
Mar 1, 2008·Plant Signaling & Behavior·Hayat El-Maarouf-Bouteau, Christophe Bailly
Sep 19, 2009·The New Phytologist·Kerstin MüllerGerhard Leubner-Metzger
Mar 27, 2010·Annals of Botany·Gonzalo RoqueiroHoracio Maroder
Apr 14, 2010·Journal of Experimental Botany·Jon Falk, Sergi Munné-Bosch
Jul 19, 2011·Plant Science : an International Journal of Experimental Plant Biology·Serge KibinzaHayat El-Maarouf-Bouteau
Sep 8, 2011·Methods in Molecular Biology·Christophe Bailly, Ilse Kranner
Sep 23, 2011·Plant & Cell Physiology·Juliette LeymarieChristophe Bailly
Oct 23, 2012·Plant Physiology·Thu-Phuong NguyenLeónie Bentsink
Mar 19, 2013·The Arabidopsis Book·Yonghua Li-BeissonJohn Ohlrogge
Apr 4, 2013·International Journal of Molecular Sciences·Lyuben ZagorchevMariela Odjakova

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Citations

Feb 13, 2016·Frontiers in Plant Science·Łukasz WojtylaMałgorzata Garnczarska
Dec 8, 2015·Plant & Cell Physiology·Naoto SanoMitsunori Seo
Mar 23, 2017·Physiologia Plantarum·Thomas RoachAnja Krieger-Liszkay
Apr 28, 2018·Journal of Experimental Botany·Gonda BuijsLeónie Bentsink
May 17, 2019·Free Radical Research·Manuela NagelIlse Kranner
May 31, 2020·Plants·Kai Katsuya-GaviriaRaquel Iglesias-Fernández
Apr 15, 2020·Plants·Néstor Carrillo-BarralAngel Jesús Matilla
Apr 16, 2019·Functional Plant Biology : FPB·Lilya BoucelhaOuzna Abrous-Belbachir
Oct 28, 2019·The Biochemical Journal·Christophe Bailly
Mar 16, 2018·Plant, Cell & Environment·Pascale SatourFrançoise Montrichard
Dec 10, 2015·Annals of Botany·Michael J ConsidineChristine Helen Foyer
Dec 31, 2020·International Journal of Molecular Sciences·Galina SmolikovaSergei Medvedev
Apr 4, 2021·International Journal of Molecular Sciences·Davide GernaIlse Kranner

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