Schuldt, Bernhard

[["dc.bibliographiccitation.firstpage","1016"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Tree Physiology"],["dc.bibliographiccitation.lastpage","1025"],["dc.bibliographiccitation.volume","38"],["dc.contributor.author","Zhang, Ya"],["dc.contributor.author","Lamarque, Laurent J."],["dc.contributor.author","Torres-Ruiz, José M."],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Karimi, Zohreh"],["dc.contributor.author","Li, Shan"],["dc.contributor.author","Qin, De-Wen"],["dc.contributor.author","Bittencourt, Paulo"],["dc.contributor.author","Burlett, Régis"],["dc.contributor.author","Cao, Kun-Fang"],["dc.contributor.author","Delzon, Sylvain"],["dc.contributor.author","Oliveira, Rafael"],["dc.contributor.author","Pereira, Luciano"],["dc.contributor.author","Jansen, Steven"],["dc.date.accessioned","2019-07-09T11:45:50Z"],["dc.date.available","2019-07-09T11:45:50Z"],["dc.date.issued","2018"],["dc.description.abstract","Methods to estimate xylem embolism resistance generally rely on hydraulic measurements, which can be far from straightforward. Recently, a pneumatic method based on air flow measurements of terminal branch ends was proposed to construct vulnerability curves by linking the amount of air extracted from a branch with the degree of embolism. We applied this novel technique for 10 temperate tree species, including six diffuse, two ring-porous and two gymnosperm species, and compared the pneumatic curves with hydraulic ones obtained from either the flow-centrifuge or the hydraulic-bench dehydration method. We found that the pneumatic method provides a good estimate of the degree of xylem embolism for all angiosperm species. The xylem pressure at 50% and 88% loss of hydraulic conductivity (i.e., Ψ50 and Ψ88) based on the methods applied showed a strongly significant correlation for all eight angiosperms. However, the pneumatic method showed significantly reduced Ψ50 values for the two conifers. Our findings suggest that the pneumatic method could provide a fast and accurate approach for angiosperms due to its convenience and feasibility, at least within the range of embolism resistances covered by our samples."],["dc.identifier.doi","10.1093/treephys/tpy015"],["dc.identifier.pmid","29474679"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15323"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59316"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1758-4469"],["dc.rights","CC BY-NC-ND 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/4.0"],["dc.subject.ddc","570"],["dc.title","Testing the plant pneumatic method to estimate xylem embolism resistance in stems of temperate trees"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5611"],["dc.bibliographiccitation.issue","22"],["dc.bibliographiccitation.journal","Journal of Experimental Botany"],["dc.bibliographiccitation.lastpage","5623"],["dc.bibliographiccitation.volume","69"],["dc.contributor.author","Klepsch, Matthias"],["dc.contributor.author","Zhang, Ya"],["dc.contributor.author","Kotowska, Martyna M"],["dc.contributor.author","Lamarque, Laurent J"],["dc.contributor.author","Nolf, Markus"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Torres-Ruiz, José M"],["dc.contributor.author","Qin, De-Wen"],["dc.contributor.author","Choat, Brendan"],["dc.contributor.author","Delzon, Sylvain"],["dc.contributor.author","Scoffoni, Christine"],["dc.contributor.author","Cao, Kun-Fang"],["dc.contributor.author","Jansen, Steven"],["dc.date.accessioned","2019-07-09T11:50:22Z"],["dc.date.available","2019-07-09T11:50:22Z"],["dc.date.issued","2018"],["dc.description.abstract","According to the hydraulic vulnerability segmentation hypothesis, leaves are more vulnerable to decline of hydraulic conductivity than branches, but whether stem xylem is more embolism resistant than leaves remains unclear. Drought-induced embolism resistance of leaf xylem was investigated based on X-ray microcomputed tomography (microCT) for Betula pendula, Laurus nobilis, and Liriodendron tulipifera, excluding outside-xylem, and compared with hydraulic vulnerability curves for branch xylem. Moreover, bordered pit characters related to embolism resistance were investigated for both organs. Theoretical P50 values (i.e. the xylem pressure corresponding to 50% loss of hydraulic conductance) of leaves were generally within the same range as hydraulic P50 values of branches. P50 values of leaves were similar to branches for L. tulipifera (-2.01 versus -2.10 MPa, respectively), more negative for B. pendula (-2.87 versus -1.80 MPa), and less negative for L. nobilis (-6.4 versus -9.2 MPa). Despite more narrow conduits in leaves than branches, mean interconduit pit membrane thickness was similar in both organs, but significantly higher in leaves of B. pendula than in branches. This case study indicates that xylem shows a largely similar embolism resistance across leaves and branches, although differences both within and across organs may occur, suggesting interspecific variation with regard to the hydraulic vulnerability segmentation hypothesis."],["dc.identifier.doi","10.1093/jxb/ery321"],["dc.identifier.pmid","30184113"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15922"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59758"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1460-2431"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","570"],["dc.title","Is xylem of angiosperm leaves less resistant to embolism than branches? Insights from microCT, hydraulics, and anatomy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]