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The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity
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| Zeitschriftentitel: | New Phytologist |
|---|---|
| Personen und Körperschaften: | , , , , , |
| In: | New Phytologist, 217, 2018, 1, S. 105-116 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Lehmann, Marco M. Goldsmith, Gregory R. Schmid, Lola Gessler, Arthur Saurer, Matthias Siegwolf, Rolf T. W. Lehmann, Marco M. Goldsmith, Gregory R. Schmid, Lola Gessler, Arthur Saurer, Matthias Siegwolf, Rolf T. W. |
|---|---|
| author |
Lehmann, Marco M. Goldsmith, Gregory R. Schmid, Lola Gessler, Arthur Saurer, Matthias Siegwolf, Rolf T. W. |
| spellingShingle |
Lehmann, Marco M. Goldsmith, Gregory R. Schmid, Lola Gessler, Arthur Saurer, Matthias Siegwolf, Rolf T. W. New Phytologist The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity Plant Science Physiology |
| author_sort |
lehmann, marco m. |
| spelling |
Lehmann, Marco M. Goldsmith, Gregory R. Schmid, Lola Gessler, Arthur Saurer, Matthias Siegwolf, Rolf T. W. 0028-646X 1469-8137 Wiley Plant Science Physiology http://dx.doi.org/10.1111/nph.14788 <jats:title>Summary</jats:title><jats:p> <jats:list list-type="bullet"> <jats:list-item><jats:p>Our understanding of how temporal variations of atmospheric water vapour and its isotopic composition (δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content>) influence water and assimilates in plants remains limited, restricting our ability to use δ<jats:sup>18</jats:sup>O as a tracer of ecophysiological processes.</jats:p></jats:list-item> <jats:list-item><jats:p>We exposed oak (<jats:italic>Quercus robur</jats:italic>) saplings under wet and dry soil moisture conditions to <jats:sup>18</jats:sup>O‐depleted water vapour (<jats:italic>c</jats:italic>. − 200‰) at high relative humidity (<jats:italic>c</jats:italic>. 93%) for 5 h, simulating a fog event. We then traced the step change in δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content> into water and assimilates (e.g. sucrose, hexoses, quercitol and starch) in the leaf lamina, main veins and twigs over 24 h.</jats:p></jats:list-item> <jats:list-item><jats:p>The immediate δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content> effect was highest for δ<jats:sup>18</jats:sup>O of leaf lamina water, but 40% lower on δ<jats:sup>18</jats:sup>O of main vein water. To a smaller extent, we also observed changes in δ<jats:sup>18</jats:sup>O of twig xylem water. Depending on the individual assimilation rate of each plant, the <jats:sup>18</jats:sup>O‐label was partitioned among different assimilates, with highest changes in δ<jats:sup>18</jats:sup>O of starch/sucrose and lowest in δ<jats:sup>18</jats:sup>O of quercitol. Additionally, <jats:sup>18</jats:sup>O‐label partitioning and allocation towards leaf starch and twig phloem sugars was influenced by the plant water status.</jats:p></jats:list-item> <jats:list-item><jats:p>Our results have important implications for water isotope heterogeneity in plants and for our understanding of how the δ<jats:sup>18</jats:sup>O signal is incorporated into biomarkers.</jats:p></jats:list-item> </jats:list> </jats:p> The effect of <sup>18</sup>O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity New Phytologist |
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10.1111/nph.14788 |
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| imprint |
Wiley, 2018 |
| imprint_str_mv |
Wiley, 2018 |
| issn |
0028-646X 1469-8137 |
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0028-646X 1469-8137 |
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lehmann2018theeffectof18olabelledwatervapourontheoxygenisotoperatioofwaterandassimilatesinplantsathighhumidity |
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2018 |
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Wiley |
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New Phytologist |
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49 |
| title |
The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_unstemmed |
The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_full |
The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_fullStr |
The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_full_unstemmed |
The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_short |
The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_sort |
the effect of <sup>18</sup>o‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| topic |
Plant Science Physiology |
| url |
http://dx.doi.org/10.1111/nph.14788 |
| publishDate |
2018 |
| physical |
105-116 |
| description |
<jats:title>Summary</jats:title><jats:p>
<jats:list list-type="bullet">
<jats:list-item><jats:p>Our understanding of how temporal variations of atmospheric water vapour and its isotopic composition (δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content>) influence water and assimilates in plants remains limited, restricting our ability to use δ<jats:sup>18</jats:sup>O as a tracer of ecophysiological processes.</jats:p></jats:list-item>
<jats:list-item><jats:p>We exposed oak (<jats:italic>Quercus robur</jats:italic>) saplings under wet and dry soil moisture conditions to <jats:sup>18</jats:sup>O‐depleted water vapour (<jats:italic>c</jats:italic>. − 200‰) at high relative humidity (<jats:italic>c</jats:italic>. 93%) for 5 h, simulating a fog event. We then traced the step change in δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content> into water and assimilates (e.g. sucrose, hexoses, quercitol and starch) in the leaf lamina, main veins and twigs over 24 h.</jats:p></jats:list-item>
<jats:list-item><jats:p>The immediate δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content> effect was highest for δ<jats:sup>18</jats:sup>O of leaf lamina water, but 40% lower on δ<jats:sup>18</jats:sup>O of main vein water. To a smaller extent, we also observed changes in δ<jats:sup>18</jats:sup>O of twig xylem water. Depending on the individual assimilation rate of each plant, the <jats:sup>18</jats:sup>O‐label was partitioned among different assimilates, with highest changes in δ<jats:sup>18</jats:sup>O of starch/sucrose and lowest in δ<jats:sup>18</jats:sup>O of quercitol. Additionally, <jats:sup>18</jats:sup>O‐label partitioning and allocation towards leaf starch and twig phloem sugars was influenced by the plant water status.</jats:p></jats:list-item>
<jats:list-item><jats:p>Our results have important implications for water isotope heterogeneity in plants and for our understanding of how the δ<jats:sup>18</jats:sup>O signal is incorporated into biomarkers.</jats:p></jats:list-item>
</jats:list>
</jats:p> |
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| author | Lehmann, Marco M., Goldsmith, Gregory R., Schmid, Lola, Gessler, Arthur, Saurer, Matthias, Siegwolf, Rolf T. W. |
| author_facet | Lehmann, Marco M., Goldsmith, Gregory R., Schmid, Lola, Gessler, Arthur, Saurer, Matthias, Siegwolf, Rolf T. W., Lehmann, Marco M., Goldsmith, Gregory R., Schmid, Lola, Gessler, Arthur, Saurer, Matthias, Siegwolf, Rolf T. W. |
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| description | <jats:title>Summary</jats:title><jats:p> <jats:list list-type="bullet"> <jats:list-item><jats:p>Our understanding of how temporal variations of atmospheric water vapour and its isotopic composition (δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content>) influence water and assimilates in plants remains limited, restricting our ability to use δ<jats:sup>18</jats:sup>O as a tracer of ecophysiological processes.</jats:p></jats:list-item> <jats:list-item><jats:p>We exposed oak (<jats:italic>Quercus robur</jats:italic>) saplings under wet and dry soil moisture conditions to <jats:sup>18</jats:sup>O‐depleted water vapour (<jats:italic>c</jats:italic>. − 200‰) at high relative humidity (<jats:italic>c</jats:italic>. 93%) for 5 h, simulating a fog event. We then traced the step change in δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content> into water and assimilates (e.g. sucrose, hexoses, quercitol and starch) in the leaf lamina, main veins and twigs over 24 h.</jats:p></jats:list-item> <jats:list-item><jats:p>The immediate δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content> effect was highest for δ<jats:sup>18</jats:sup>O of leaf lamina water, but 40% lower on δ<jats:sup>18</jats:sup>O of main vein water. To a smaller extent, we also observed changes in δ<jats:sup>18</jats:sup>O of twig xylem water. Depending on the individual assimilation rate of each plant, the <jats:sup>18</jats:sup>O‐label was partitioned among different assimilates, with highest changes in δ<jats:sup>18</jats:sup>O of starch/sucrose and lowest in δ<jats:sup>18</jats:sup>O of quercitol. Additionally, <jats:sup>18</jats:sup>O‐label partitioning and allocation towards leaf starch and twig phloem sugars was influenced by the plant water status.</jats:p></jats:list-item> <jats:list-item><jats:p>Our results have important implications for water isotope heterogeneity in plants and for our understanding of how the δ<jats:sup>18</jats:sup>O signal is incorporated into biomarkers.</jats:p></jats:list-item> </jats:list> </jats:p> |
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| spelling | Lehmann, Marco M. Goldsmith, Gregory R. Schmid, Lola Gessler, Arthur Saurer, Matthias Siegwolf, Rolf T. W. 0028-646X 1469-8137 Wiley Plant Science Physiology http://dx.doi.org/10.1111/nph.14788 <jats:title>Summary</jats:title><jats:p> <jats:list list-type="bullet"> <jats:list-item><jats:p>Our understanding of how temporal variations of atmospheric water vapour and its isotopic composition (δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content>) influence water and assimilates in plants remains limited, restricting our ability to use δ<jats:sup>18</jats:sup>O as a tracer of ecophysiological processes.</jats:p></jats:list-item> <jats:list-item><jats:p>We exposed oak (<jats:italic>Quercus robur</jats:italic>) saplings under wet and dry soil moisture conditions to <jats:sup>18</jats:sup>O‐depleted water vapour (<jats:italic>c</jats:italic>. − 200‰) at high relative humidity (<jats:italic>c</jats:italic>. 93%) for 5 h, simulating a fog event. We then traced the step change in δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content> into water and assimilates (e.g. sucrose, hexoses, quercitol and starch) in the leaf lamina, main veins and twigs over 24 h.</jats:p></jats:list-item> <jats:list-item><jats:p>The immediate δ<jats:sup>18</jats:sup><jats:styled-content style="fixed-case">O<jats:sub>V</jats:sub></jats:styled-content> effect was highest for δ<jats:sup>18</jats:sup>O of leaf lamina water, but 40% lower on δ<jats:sup>18</jats:sup>O of main vein water. To a smaller extent, we also observed changes in δ<jats:sup>18</jats:sup>O of twig xylem water. Depending on the individual assimilation rate of each plant, the <jats:sup>18</jats:sup>O‐label was partitioned among different assimilates, with highest changes in δ<jats:sup>18</jats:sup>O of starch/sucrose and lowest in δ<jats:sup>18</jats:sup>O of quercitol. Additionally, <jats:sup>18</jats:sup>O‐label partitioning and allocation towards leaf starch and twig phloem sugars was influenced by the plant water status.</jats:p></jats:list-item> <jats:list-item><jats:p>Our results have important implications for water isotope heterogeneity in plants and for our understanding of how the δ<jats:sup>18</jats:sup>O signal is incorporated into biomarkers.</jats:p></jats:list-item> </jats:list> </jats:p> The effect of <sup>18</sup>O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity New Phytologist |
| spellingShingle | Lehmann, Marco M., Goldsmith, Gregory R., Schmid, Lola, Gessler, Arthur, Saurer, Matthias, Siegwolf, Rolf T. W., New Phytologist, The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity, Plant Science, Physiology |
| title | The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_full | The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_fullStr | The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_full_unstemmed | The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_short | The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_sort | the effect of <sup>18</sup>o‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| title_unstemmed | The effect of 18O‐labelled water vapour on the oxygen isotope ratio of water and assimilates in plants at high humidity |
| topic | Plant Science, Physiology |
| url | http://dx.doi.org/10.1111/nph.14788 |