The absence of ALTERNATIVE OXIDASE1a in Arabidopsis results in acute sensitivity to combined light and drought stress.

Plant Physiology
Estelle GiraudJames Whelan

Abstract

Treatment of Arabidopsis (Arabidopsis thaliana) alternative oxidase1a (aox1a) mutant plants with moderate light under drought conditions resulted in a phenotypic difference compared with ecotype Columbia (Col-0), as evidenced by a 10-fold increase in the accumulation of anthocyanins in leaves, alterations in photosynthetic efficiency, and increased superoxide radical and reduced root growth at the early stages of seedling growth. Analysis of metabolite profiles revealed significant changes upon treatment in aox1a plants typical of combined stress treatments, and these were less pronounced or absent in Col-0 plants. These changes were accompanied by alteration in the abundance of a variety of transcripts during the stress treatment, providing a molecular fingerprint for the stress-induced phenotype of aox1a plants. Transcripts encoding proteins involved in the synthesis of anthocyanins, transcription factors, chloroplastic and mitochondrial components, cell wall synthesis, and sucrose and starch metabolism changed, indicating that effects were not confined to mitochondria, where the AOX1a protein is located. Microarray and quantitative reverse transcription-polymerase chain reaction analysis revealed that transcripts typically i...Continue Reading

References

Apr 1, 1968·Experimental Cell Research·O L GamborgK Ojima
Apr 1, 1997·Proceedings of the National Academy of Sciences of the United States of America·S GutierresR De Paepe
Jul 8, 1999·Proceedings of the National Academy of Sciences of the United States of America·D P MaxwellL McIntosh
Dec 29, 2000·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·A WinglerR C Leegood
Nov 6, 2002·Trends in Plant Science·Anthony L MooreCharles Affourtit
Nov 13, 2002·Plant Physiology·Jan Bart RosselBarry J Pogson
Dec 7, 2002·The Plant Cell·Olga V KarpovaKathleen J Newton
Dec 21, 2002·The Plant Journal : for Cell and Molecular Biology·L J SweetloveA H Millar
Oct 11, 2003·Plant Physiology·David Thirkettle-WattsJames Whelan
Mar 5, 2004·The Plant Journal : for Cell and Molecular Biology·Oliver ThimmMark Stitt
Jun 1, 1997·Annual Review of Plant Physiology and Plant Molecular Biology·Greg C. Vanlerberghe, Lee McIntosh
Jun 1, 1996·Annual Review of Plant Physiology and Plant Molecular Biology·K. E. Koch
Sep 18, 2004·Plant Physiology·Philip ZimmermannWilhelm Gruissem
Oct 7, 2004·Trends in Plant Science·Ron MittlerFrank Van Breusegem
Feb 24, 2005·Annual Review of Plant Biology·Allan G RasmussonThomas E Elthon
Jul 20, 2005·Plant Molecular Biology·Rachel CliftonJames Whelan
Oct 22, 2005·Plant & Cell Physiology·Keisuke YoshidaKo Noguchi
Dec 20, 2005·Trends in Plant Science·Ron Mittler
Feb 8, 2006·The Plant Journal : for Cell and Molecular Biology·Matthew A EscobarAllan G Rasmusson
Apr 4, 2006·Proceedings of the National Academy of Sciences of the United States of America·Ji-Young LeePhilip N Benfey
May 4, 2006·Annual Review of Plant Biology·Dean DellaPenna, Barry J Pogson
May 23, 2006·Trends in Plant Science·Birgit Arnholdt-SchmittDirce Fernandes de Melo

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Citations

Sep 15, 2012·Planta·Chris CarrieJames Whelan
Nov 26, 2009·Functional & Integrative Genomics·Tilahun AbebeRoger P Wise
Feb 9, 2011·Journal of Bioenergetics and Biomembranes·Fábio Tebaldi Silveira NogueiraIvan G Maia
Dec 12, 2012·The Journal of Biological Chemistry·Sophia NgAneta Ivanova
Dec 14, 2012·Antioxidants & Redox Signaling·Markus Schwarzländer, Iris Finkemeier
Dec 2, 2011·Journal of Experimental Botany·Markus SchwarzländerIris Finkemeier
Nov 11, 2011·International Journal of Molecular Sciences·Els KeunenAnn Cuypers
Jan 1, 2010·The Arabidopsis Book·Paul E Verslues, Sandeep Sharma
Feb 14, 2014·Journal of Experimental Botany·Jessica SchmitzRainer E Häusler
Nov 5, 2013·Antioxidants & Redox Signaling·Lauri VaahteraJaakko Kangasjärvi

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