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@ARTICLE{Wolff:887973,
      author       = {Wolff, Jan and Hofmann, Diana and Koch, Maximilian and Bol,
                      Roland and Schnepf, Andrea and Amelung, Wulf},
      title        = {{B}ioavailability and -accessibility of subsoil allocated
                      33{P}-labelled hydroxyapatite to wheat under different
                      moisture supply},
      journal      = {Scientific reports},
      volume       = {10},
      number       = {1},
      issn         = {2045-2322},
      address      = {[London]},
      publisher    = {Macmillan Publishers Limited, part of Springer Nature},
      reportid     = {FZJ-2020-04559},
      pages        = {17140},
      year         = {2020},
      abstract     = {Information on the bioavailability and -accessibility of
                      subsoil phosphorus (P) and how soil moisture affects its
                      utilization by plants is scarce. The current study examined
                      whether and to which degree wheat acquires P from subsoil
                      allocated hydroxyapatite and how this could be affected by
                      soil moisture. We investigated the 33P uptake by growing
                      wheat in two rhizotron trials (soil and sand) with
                      integrated 33P-labelled hydroxyapatite hotspots over a
                      period of 44 days using digital autoradiography imaging and
                      liquid scintillation counting. We applied two irrigation
                      scenarios, mimicking either rainfall via topsoil watering or
                      subsoil water storage. The plants showed similar biomass
                      development when grown in soil, but a reduced growth in sand
                      rhizotrons. Total plant P(tot) stocks were significantly
                      larger in plants grown under improved subsoil moisture
                      supply, further evidenced by enhanced P stocks in the ears
                      of wheat in the sand treatment due to an earlier grain
                      filling. This P uptake is accompanied by larger 33P signals,
                      indicating that the plants accessed the hydroxyapatite
                      because subsoil irrigation also promoted root proliferation
                      within and around the hotspots. We conclude that even within
                      a single season plants access subsoil mineral P sources, and
                      this process is influenced by water management.},
      cin          = {IBG-3},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:33051570},
      UT           = {WOS:000582694000007},
      doi          = {10.1038/s41598-020-74225-3},
      url          = {https://juser.fz-juelich.de/record/887973},
}