Spatial heterogeneity of flesh-cell osmotic potential in sweet cherry affects partitioning of absorbed water

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dc.identifier.uri http://dx.doi.org/10.15488/9908
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/9966
dc.contributor.author Grimm, Eckhard
dc.contributor.author Pflugfelder, Daniel
dc.contributor.author Hahn, Jan
dc.contributor.author Schmidt, Moritz Jonathan
dc.contributor.author Dieckmann, Hendrik
dc.contributor.author Knoche, Moritz
dc.date.accessioned 2020-06-29T15:21:49Z
dc.date.available 2020-06-29T15:21:49Z
dc.date.issued 2020
dc.identifier.citation Grimm, E.; Pflugfelder, D.; Hahn, J.; Schmidt, M.J.; Dieckmann, H.; Knoche, M.: Spatial heterogeneity of flesh-cell osmotic potential in sweet cherry affects partitioning of absorbed water. In: Horticulture Research 7 (2020), Nr. 1, 51. DOI: https://doi.org/10.1038/s41438-020-0274-8
dc.description.abstract A fleshy fruit is commonly assumed to resemble a thin-walled pressure vessel containing a homogenous carbohydrate solution. Using sweet cherry (Prunus avium L.) as a model system, we investigate how local differences in cell water potential affect H2O and D2O (heavy water) partitioning. The partitioning of H2O and D2O was mapped non-destructively using magnetic resonance imaging (MRI). The change in size of mesocarp cells due to water movement was monitored by optical coherence tomography (OCT, non-destructive). Osmotic potential was mapped using micro-osmometry (destructive). Virtual sections through the fruit revealed that the H2O distribution followed a net pattern in the outer mesocarp and a radial pattern in the inner mesocarp. These patterns align with the disposition of the vascular bundles. D2O uptake through the skin paralleled the acropetal gradient in cell osmotic potential gradient (from less negative to more negative). Cells in the vicinity of a vascular bundle were of more negative osmotic potential than cells more distant from a vascular bundle. OCT revealed net H2O uptake was the result of some cells loosing volume and other cells increasing volume. H2O and D2O partitioning following uptake is non-uniform and related to the spatial heterogeneity in the osmotic potential of mesocarp cells.
dc.language.iso eng
dc.publisher Berlin : Springer Nature
dc.relation.ispartofseries Horticulture Research 7 (2020), Nr. 1
dc.relation.uri https://doi.org/10.1038/s41438-020-0274-8
dc.rights CC BY 4.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject sweet cherry eng
dc.subject Prunus avium L. eng
dc.subject water partitioning eng
dc.subject.ddc 580 | Pflanzen (Botanik) ger
dc.title Spatial heterogeneity of flesh-cell osmotic potential in sweet cherry affects partitioning of absorbed water
dc.type article
dc.type Text
dc.relation.issn 2052-7276
dc.bibliographicCitation.issue 1
dc.bibliographicCitation.volume 7
dc.bibliographicCitation.firstPage 51
tib.accessRights frei zug�nglich


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