BaukeSchnepfSperberEtAl2021

Référence

Bauke, S.L., Schnepf, A., von Sperber, C., Orlowski, N., Lewandowski, H., Selzner, T., Tamburini, F., Amelung, W. (2021) Tracing uptake and translocation of phosphorus in wheat using oxygen isotopes and mathematical modelling. New Phytologist, 230(5):1883-1895. (Scopus )

Résumé

Understanding P uptake in soil–plant systems requires suitable P tracers. The stable oxygen isotope ratio in phosphate (expressed as δ18OP) is an alternative to radioactive labelling, but the degree to which plants preserve the δ18OP value of the P source is unclear. We hypothesised that the source signal will be preserved in roots rather than shoots. In soil and hydroponic experiments with spring wheat (Triticum aestivum), we replaced irrigation water by 18O-labelled water for up to 10 d. We extracted plant inorganic phosphates with trichloroacetic acid (TCA), assessed temporal dynamics of δ18OTCA-P values after changing to 18O-labelled water and combined the results with a mathematical model. Within 1 wk, full equilibration of δ18OTCA-P values with the isotope value of the water in the growth medium occurred in shoots but not in roots. Model results further indicated that root δ18OTCA-P values were affected by back transport of phosphate from shoots to roots, with a greater contribution of source P at higher temperatures when back transport was reduced. Root δ18OTCA-P partially preserved the source signal, providing an indicator of P uptake sources. This now needs to be tested extensively for different species, soil and climate conditions to enable application in future ecosystem studies. © 2021 The Authors New Phytologist © 2021 New Phytologist Foundation

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { BaukeSchnepfSperberEtAl2021,
    AUTHOR = { Bauke, S.L. and Schnepf, A. and von Sperber, C. and Orlowski, N. and Lewandowski, H. and Selzner, T. and Tamburini, F. and Amelung, W. },
    JOURNAL = { New Phytologist },
    TITLE = { Tracing uptake and translocation of phosphorus in wheat using oxygen isotopes and mathematical modelling },
    YEAR = { 2021 },
    NOTE = { cited By 0 },
    NUMBER = { 5 },
    PAGES = { 1883-1895 },
    VOLUME = { 230 },
    ABSTRACT = { Understanding P uptake in soil–plant systems requires suitable P tracers. The stable oxygen isotope ratio in phosphate (expressed as δ18OP) is an alternative to radioactive labelling, but the degree to which plants preserve the δ18OP value of the P source is unclear. We hypothesised that the source signal will be preserved in roots rather than shoots. In soil and hydroponic experiments with spring wheat (Triticum aestivum), we replaced irrigation water by 18O-labelled water for up to 10 d. We extracted plant inorganic phosphates with trichloroacetic acid (TCA), assessed temporal dynamics of δ18OTCA-P values after changing to 18O-labelled water and combined the results with a mathematical model. Within 1 wk, full equilibration of δ18OTCA-P values with the isotope value of the water in the growth medium occurred in shoots but not in roots. Model results further indicated that root δ18OTCA-P values were affected by back transport of phosphate from shoots to roots, with a greater contribution of source P at higher temperatures when back transport was reduced. Root δ18OTCA-P partially preserved the source signal, providing an indicator of P uptake sources. This now needs to be tested extensively for different species, soil and climate conditions to enable application in future ecosystem studies. © 2021 The Authors New Phytologist © 2021 New Phytologist Foundation },
    AFFILIATION = { Institute of Crop Science and Resource Conservation (INRES) – Soil Science and Soil Ecology, University of Bonn, Nussallee 13, Bonn, 53115, Germany; Institute for Bio- and Geosciences – IBG-3: Agrosphere, Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, Jülich, 52425, Germany; Department of Geography, McGill University, 805 Sherbrooke St. W., Montreal, QC H3A 0B9, Canada; Institute for Landscape Ecology and Resources Management (ILR), Research Centre for BioSystems, Land Use and Nutrition (IFZ), Justus Liebig University Giessen, Heinrich-Buff-Ring 26–32, Giessen, 35392, Germany; Chair of Hydrology, University of Freiburg, Friedrichstraße 39, Freiburg, 79098, Germany; Institute of Agricultural Sciences, ETH Zürich, Lindau, 8315, Switzerland },
    AUTHOR_KEYWORDS = { hydroponics; isotope model; oxygen isotope exchange; phosphate; plant P uptake; roots },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1111/nph.17307 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103541632&doi=10.1111%2fnph.17307&partnerID=40&md5=f306ee342be5fea11f425dc84cb76ac3 },
}

********************************************************** *************************** FRQNT ************************ **********************************************************

Le CEF est un
regroupement stratégique du

********************************************************** *********************** Infolettre *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ***************** Pub - Chenilles espionnes ****************** **********************************************************

**********************************************************

***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

  • Voici une liste (clairement incomplète) des packages R axés sur l'écologie! N'hésitez pas à ajouter à la liste

Voir les autres...