The Dynamics of Phosphorus Uptake and Remobilization during the Grain Development Period in Durum Wheat Plants
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | EL MAZLOUZI, Mohamed | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | MOREL, Christian | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | ROBERT, Thierry | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | CHESSERON, Coralie | |
| hal.structure.identifier | Agroécologie [Dijon] | |
| dc.contributor.author | SALON, Christophe | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | CORNU, Jean-Yves | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | MOLLIER, Alain | |
| dc.date.accessioned | 2024-04-08T11:47:46Z | |
| dc.date.available | 2024-04-08T11:47:46Z | |
| dc.date.issued | 2022-04-07 | |
| dc.identifier.issn | 2223-7747 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/195289 | |
| dc.description.abstractEn | Post-anthesis phosphorus (P) uptake and the remobilization of the previously acquired P are the principal sources of grain P nutrition in wheat. However, how the acquired P reaches the grains and its partitioning at the whole plant level remain poorly understood. Here, the temporal dynamics of the newly acquired P in durum wheat organs and its allocation to grain were examined using pulse-chase P-32-labeling experiments at 5 and 14 days after anthesis. Durum wheat plants were grown hydroponically under high and low P supplies. Each labeling experiment lasted for 24 h. Plants were harvested 24, 48, and 96 h after labeling. Low and high P treatments significantly affected the allocation of the newly acquired P at the whole plant level. Three days (96 h) after the first P-32-labeling, 8% and 4% of the newly acquired P from exogenous solution were allocated to grains, 73% and 55% to the remainder aboveground organs, and 19% and 41% to the roots at low and high P supplies, respectively. Three days after the second labeling, the corresponding values were 48% and 20% in grains, 44% and 53% in the remainder aboveground organs, and 8% and 27% in roots at low and high P supplies, respectively. These results reveal that the dynamics of P allocation to grain was faster in plants grown under low P supply than under high supply. However, the obtained results also indicate that the origin of P accumulated in durum wheat grains was mainly from P remobilization with little contribution from post-anthesis P uptake. The present study emphasizes the role of vegetative organs as temporary storage of P taken up during the grain filling period before its final allocation to grains. | |
| dc.language.iso | en | |
| dc.publisher | MDPI | |
| dc.rights.uri | http://creativecommons.org/licenses/by/ | |
| dc.subject.en | phosphorus | |
| dc.subject.en | wheat grain | |
| dc.subject.en | 32 P tracer | |
| dc.subject.en | grain P concentrations | |
| dc.subject.en | P accumulation | |
| dc.subject.en | postanthesis P uptake | |
| dc.subject.en | P partitioning | |
| dc.title.en | The Dynamics of Phosphorus Uptake and Remobilization during the Grain Development Period in Durum Wheat Plants | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.3390/plants11081006 | |
| dc.subject.hal | Sciences de l'environnement | |
| bordeaux.journal | Plants | |
| bordeaux.page | 1-17 | |
| bordeaux.volume | 11 | |
| bordeaux.hal.laboratories | Interactions Soil Plant Atmosphere (ISPA) - UMR 1391 | * |
| bordeaux.issue | 8 | |
| bordeaux.institution | Bordeaux Sciences Agro | |
| bordeaux.institution | INRAE | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-03664647 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03664647v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plants&rft.date=2022-04-07&rft.volume=11&rft.issue=8&rft.spage=1-17&rft.epage=1-17&rft.eissn=2223-7747&rft.issn=2223-7747&rft.au=EL%20MAZLOUZI,%20Mohamed&MOREL,%20Christian&ROBERT,%20Thierry&CHESSERON,%20Coralie&SALON,%20Christophe&rft.genre=article |
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