A multi-species comparison of delta13C from whole wood, extractive-free wood and holocellulose

Tree Physiology
B A HarlowA P Robinson

Abstract

The stable carbon (C) isotope composition (delta13C) of tree rings is a powerful metric for reconstructing past physiological responses to climate variation. However, accurate measurement and interpretation are complicated by diagenesis and the translocation of compounds with distinct isotopic signatures. Isolation and analysis of cellulose minimizes these complications by eliminating variation due to biosynthetic pathways; however, isolation of cellulose is time-consuming and has no clear endpoint. A faster and better-defined analytical method is desirable. Our objectives were to determine if there is a direct relationship between the isotopic compositions of whole wood (WW), whole wood treated with solvents to remove mobile extractives (extractive-free wood; EF) and holocellulose (HC) isolated by extractive removal and subsequent bleaching. We also determined if total C concentration could explain the isotopic composition and variation among these three wood components of each sample. A set of wood samples of diverse phylogeny, anatomy and chemical composition, was examined. The mean offset or difference between HC and EF delta13C was 1.07 +/- 0.09 per thousand and the offset between HC and WW was 1.32 +/- 0.10 per thousand. ...Continue Reading

Citations

Jun 9, 2007·Journal of the American Society for Mass Spectrometry·Grzegorz SkrzypekMariusz O Jedrysek
Jul 22, 2008·Journal of the American Society for Mass Spectrometry·Matthew D PowersBrian J Palik
May 15, 2013·Plant, Cell & Environment·Liang WeiNerea Ubierna
Feb 17, 2015·Global Change Biology·Xanthe J WalkerJill F Johnstone
May 10, 2016·Tree-ring Research·Marzena Kłusek, Michael Grabner
Sep 9, 2015·Geochronometria·Marzena Kłusek, Sławomira Pawełczyk
May 19, 2020·Global Change Biology·William MarchandYves Bergeron
Sep 13, 2020·The New Phytologist·Wenzhi WangNate G McDowell
Dec 14, 2018·Palaeogeography, Palaeoclimatology, Palaeoecology·Marzena KłusekJacek Pawlyta
Aug 28, 2020·The Science of the Total Environment·Charlotte C Reed, Sharon M Hood

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