Inside out: Measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported CO 2

Carbon dioxide concentrations (including aqueous CO 2 , carbonic acid, bicarbonate, and carbonate) in woody tissues can be up to 750 times higher than atmospheric CO 2 concentrations, ranging from <1% to >26% vs atmospheric ~0.04% (Fig. 1) (Teskey et al. 2008). CO 2 formed through respiration...

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Published in:Plant, Cell & Environment
Main Authors: Stutz, Samantha S., Anderson, Jeremiah
Language:unknown
Published: 2022
Subjects:
Online Access:http://www.osti.gov/servlets/purl/1818940
https://www.osti.gov/biblio/1818940
https://doi.org/10.1111/pce.14172
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spelling ftosti:oai:osti.gov:1818940 2023-07-30T04:02:56+02:00 Inside out: Measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported CO 2 Stutz, Samantha S. Anderson, Jeremiah 2022-08-23 application/pdf http://www.osti.gov/servlets/purl/1818940 https://www.osti.gov/biblio/1818940 https://doi.org/10.1111/pce.14172 unknown http://www.osti.gov/servlets/purl/1818940 https://www.osti.gov/biblio/1818940 https://doi.org/10.1111/pce.14172 doi:10.1111/pce.14172 54 ENVIRONMENTAL SCIENCES 2022 ftosti https://doi.org/10.1111/pce.14172 2023-07-11T10:06:49Z Carbon dioxide concentrations (including aqueous CO 2 , carbonic acid, bicarbonate, and carbonate) in woody tissues can be up to 750 times higher than atmospheric CO 2 concentrations, ranging from <1% to >26% vs atmospheric ~0.04% (Fig. 1) (Teskey et al. 2008). CO 2 formed through respiration is generally assumed to diffuse to the atmosphere from tissues adjacent to where it is produced. Here, this CO 2 buildups in the stem due to the diffusional barriers in woody and bark tissues. CO 2 in the stem has three fates: 1) it can be refixed for photosynthesis, 2) it can be used for anaplerotic reactions, or 3) it can exit the plant either adjacent to where it was produced (radial diffusion) or in an area remote from its point of origin (xylem-transported CO 2 ). Not accounting for assimilation of xylem-transported CO 2 may result in underestimating total plant photosynthesis. Alternatively, overlooking the transport of CO 2 away from its point of origin complicates the estimation of respiration in stems, branches, or even leaves. For example, CO 2 efflux from the stem may not solely represent stem respiration, but it may represent CO 2 generated through respiration in areas remote from the point of efflux (Stutz et al., 2017). Additionally, wood anatomy and branching architecture likely influence how much and how far xylem-transported CO 2 travels (Fig. 2). Few studies have combined measurements of both the efflux of xylem-transported CO 2 from trees together and the assimilation of xylem-transported CO 2 . Excitingly in this issue of Plant, Cell & Environment, Salomón et al. (pp. ) demonstrate the importance of xylem-transported CO 2 in plants with different wood anatomies by comparing the amount of xylem-transported CO 2 used for photosynthesis to the amount effluxed. Other/Unknown Material Carbonic acid SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Plant, Cell & Environment 44 11 3490 3493
institution Open Polar
collection SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
op_collection_id ftosti
language unknown
topic 54 ENVIRONMENTAL SCIENCES
spellingShingle 54 ENVIRONMENTAL SCIENCES
Stutz, Samantha S.
Anderson, Jeremiah
Inside out: Measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported CO 2
topic_facet 54 ENVIRONMENTAL SCIENCES
description Carbon dioxide concentrations (including aqueous CO 2 , carbonic acid, bicarbonate, and carbonate) in woody tissues can be up to 750 times higher than atmospheric CO 2 concentrations, ranging from <1% to >26% vs atmospheric ~0.04% (Fig. 1) (Teskey et al. 2008). CO 2 formed through respiration is generally assumed to diffuse to the atmosphere from tissues adjacent to where it is produced. Here, this CO 2 buildups in the stem due to the diffusional barriers in woody and bark tissues. CO 2 in the stem has three fates: 1) it can be refixed for photosynthesis, 2) it can be used for anaplerotic reactions, or 3) it can exit the plant either adjacent to where it was produced (radial diffusion) or in an area remote from its point of origin (xylem-transported CO 2 ). Not accounting for assimilation of xylem-transported CO 2 may result in underestimating total plant photosynthesis. Alternatively, overlooking the transport of CO 2 away from its point of origin complicates the estimation of respiration in stems, branches, or even leaves. For example, CO 2 efflux from the stem may not solely represent stem respiration, but it may represent CO 2 generated through respiration in areas remote from the point of efflux (Stutz et al., 2017). Additionally, wood anatomy and branching architecture likely influence how much and how far xylem-transported CO 2 travels (Fig. 2). Few studies have combined measurements of both the efflux of xylem-transported CO 2 from trees together and the assimilation of xylem-transported CO 2 . Excitingly in this issue of Plant, Cell & Environment, Salomón et al. (pp. ) demonstrate the importance of xylem-transported CO 2 in plants with different wood anatomies by comparing the amount of xylem-transported CO 2 used for photosynthesis to the amount effluxed.
author Stutz, Samantha S.
Anderson, Jeremiah
author_facet Stutz, Samantha S.
Anderson, Jeremiah
author_sort Stutz, Samantha S.
title Inside out: Measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported CO 2
title_short Inside out: Measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported CO 2
title_full Inside out: Measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported CO 2
title_fullStr Inside out: Measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported CO 2
title_full_unstemmed Inside out: Measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported CO 2
title_sort inside out: measuring the effect of wood anatomy on the efflux and assimilation of xylem–transported co 2
publishDate 2022
url http://www.osti.gov/servlets/purl/1818940
https://www.osti.gov/biblio/1818940
https://doi.org/10.1111/pce.14172
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