Elevated CO2 and/or ozone modify lignification in the wood of poplars (Populus tremula x alba).

Journal of Experimental Botany
Nicolas RichetMireille Cabané

Abstract

Trees will have to cope with increasing levels of CO(2) and ozone in the atmosphere. The purpose of this work was to assess whether the lignification process could be altered in the wood of poplars under elevated CO(2) and/or ozone. Young poplars were exposed either to charcoal-filtered air (control), to elevated CO(2) (800 μl l(-1)), to ozone (200 nl l(-1)) or to a combination of elevated CO(2) and ozone in controlled chambers. Lignification was analysed at different levels: biosynthesis pathway activities (enzyme and transcript), lignin content, and capacity to incorporate new assimilates by using (13)C labelling. Elevated CO(2) and ozone had opposite effects on many parameters (growth, biomass, cambial activity, wood cell wall thickness) except on lignin content which was increased by elevated CO(2) and/or ozone. However, this increased lignification was due to different response mechanisms. Under elevated CO(2), carbon supply to the stem and effective lignin synthesis were enhanced, leading to increased lignin content, although there was a reduction in the level of some enzyme and transcript involved in the lignin pathway. Ozone treatment induced a reduction in carbon supply and effective lignin synthesis as well as transcr...Continue Reading

References

Sep 25, 2003·Annual Review of Plant Biology·Wout BoerjanMarie Baucher
Oct 11, 2003·Critical Reviews in Biochemistry and Molecular Biology·Marie BaucherWout Boerjan
Jan 20, 2004·Plant Physiology·Mireille CabanéCatherine Lapierre
Aug 20, 2004·BMC Plant Biology·Amy M BrunnerSteven H Strauss
Sep 21, 2004·Annual Review of Plant Biology·Stephen P LongDonald R Ort
May 10, 2005·Journal of Experimental Botany·Louisa A RogersMalcolm M Campbell
Feb 1, 2007·Plant, Cell & Environment·Elizabeth A Ainsworth, Alistair Rogers
Apr 12, 2008·Current Opinion in Biotechnology·Jing-Ke WengClint Chapple
Nov 19, 2008·Annual Review of Plant Biology·Andrew Carroll, Chris Somerville
Jan 1, 1998·Trends in Ecology & Evolution·J Peñuelas, M Estiarte
Mar 2, 2011·Journal of Experimental Botany·Nicolas RichetMireille Cabané
Jan 1, 1998·Oecologia·Peter S Curtis, Xianzhong Wang

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Citations

May 31, 2014·Tree Physiology·Gea GuerrieroJean-Francois Hausman
Jan 1, 2014·Plant, Cell & Environment·Katri KostiainenElina Vapaavuori
May 3, 2016·Molecular Plant-microbe Interactions : MPMI·Fabien Baldacci-CrespMarie Baucher
Dec 15, 2015·Plant, Cell & Environment·Lorena BalducciSergio Rossi
Oct 1, 2013·Functional Plant Biology : FPB·Tesfamichael H Kebrom, Richard A Richards

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BETA
Scanning Electron Microscopy
PCR
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Software Mentioned

MeshPore
GeNorm

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