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","1669"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Journal of Applied Ecology"],["dc.bibliographiccitation.lastpage","1686"],["dc.bibliographiccitation.volume","54"],["dc.contributor.author","O'Brien, Michael J."],["dc.contributor.author","Engelbrecht, Bettina M. J."],["dc.contributor.author","Joswig, Julia"],["dc.contributor.author","Pereyra, Gabriela"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Jansen, Steven"],["dc.contributor.author","Kattge, Jens"],["dc.contributor.author","Landhäusser, Simon M."],["dc.contributor.author","Levick, Shaun R."],["dc.contributor.author","Preisler, Yakir"],["dc.contributor.author","Väänänen, Päivi"],["dc.contributor.author","Macinnis-Ng, Cate"],["dc.contributor.editor","Firn, Jennifer"],["dc.date.accessioned","2020-12-10T18:26:26Z"],["dc.date.available","2020-12-10T18:26:26Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1111/1365-2664.12874"],["dc.identifier.issn","0021-8901"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/76085"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","A synthesis of tree functional traits related to drought-induced mortality in forests across climatic zones"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","179"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Tree Physiology"],["dc.bibliographiccitation.lastpage","192"],["dc.bibliographiccitation.volume","36"],["dc.contributor.author","Li, Shan"],["dc.contributor.author","Feifel, Marion"],["dc.contributor.author","Karimi, Zohreh"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Choat, Brendan"],["dc.contributor.author","Jansen, Steven"],["dc.date.accessioned","2018-11-07T10:18:34Z"],["dc.date.available","2018-11-07T10:18:34Z"],["dc.date.issued","2016"],["dc.description.abstract","Establishing physiological thresholds to drought-induced mortality in a range of plant species is crucial in understanding how plants respond to severe drought. Here, five common European tree species were selected (Acer campestre L., Acer pseudoplatanus L., Carpinus betulus L., Corylus avellana L. and Fraxinus excelsior L.) to study their hydraulic thresholds to mortality. Photosynthetic parameters during desiccation and the recovery of leaf gas exchange after rewatering were measured. Stem vulnerability curves and leaf pressure-volume curves were investigated to understand the hydraulic coordination of stem and leaf tissue traits. Stem and root samples from well-watered and severely drought-stressed plants of two species were observed using transmission electron microscopy to visualize mortality of cambial cells. The lethal water potential (.lethal) correlated with stem P99 (i.e., the xylem water potential at 99% loss of hydraulic conductivity, PLC). However, several plants that were stressed beyond the water potential at 100% PLC showed complete recovery during the next spring, which suggests that the.lethal values were underestimated. Moreover, we observed a 1:1 relationship between the xylem water potential at the onset of embolism and stomatal closure, confirming hydraulic coordination between leaf and stem tissues. Finally, ultrastructural changes in the cytoplasm of cambium tissue and mortality of cambial cells are proposed to provide an alternative approach to investigate the point of no return associated with plant death."],["dc.description.sponsorship","China Scholarship Council (CSC)"],["dc.identifier.doi","10.1093/treephys/tpv117"],["dc.identifier.isi","000371184000005"],["dc.identifier.pmid","26614785"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41473"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","1758-4469"],["dc.relation.issn","0829-318X"],["dc.title","Leaf gas exchange performance and the lethal water potential of five European species during drought"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["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"]]

[["dc.bibliographiccitation.firstpage","152"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","IAWA Journal"],["dc.bibliographiccitation.lastpage","171"],["dc.bibliographiccitation.volume","37"],["dc.contributor.author","Li, Shan"],["dc.contributor.author","Lens, Frederic"],["dc.contributor.author","Espino, Susana"],["dc.contributor.author","Karimi, Zohreh"],["dc.contributor.author","Klepsch, Matthias"],["dc.contributor.author","Schenk, H. Jochen"],["dc.contributor.author","Schmitt, Marco"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Jansen, Steven"],["dc.date.accessioned","2018-11-07T10:20:19Z"],["dc.date.available","2018-11-07T10:20:19Z"],["dc.date.issued","2016"],["dc.description.abstract","Pit membranes in bordered pits between neighbouring vessels play a major role in the entry of air-water menisci from an embolised vessel into a water-filled vessel (i.e., air-seeding). Here, we investigate intervessel pit membrane thickness (T-PM) and embolism resistance (P-50, i.e., the water potential corresponding to 50% loss of hydraulic conductivity) across a broad range of woody angiosperm species. Data on T-PM and double intervessel wall thickness (T-VW) were compiled based on electron and light microscopy. Fresh material that was directly fixated for transmission electron microscopy (TEM) was investigated for 71 species, while non-fresh samples were frozen, stored in alcohol, or air dried prior to TEM preparation for an additional 60 species. T-PM and P50 were based on novel observations and literature. A strong correlation between T-PM and P50 was found for measurements based on freshly fixated material (r = 0.78, P < 0.01, n = 37), and between T-PM and T-VW (r = 0.79, P < 0.01, n = 59), while a slightly weaker relationship occurred between T-VW and P50 (r = 0.40, P < 0.01, n = 34). However, non-fresh samples showed no correlation between T-PM and P50, and between T-PM and T-VW. Intervessel pit membranes in non-fresh samples were c. 28% thinner and more electron dense than fresh samples. Our findings demonstrate that T-PM measured on freshly fixated material provides one of the strongest wood anatomical correlates of drought-induced embolism resistance in angiosperms. Assuming that cellulose microfibrils show an equal spatial density, T-PM is suggested to affect the length and the shape of intervessel pit membrane pores, but not the actual pore size. Moreover, the shrinking effect observed for T-PM after dehydration and frost is associated with an increase in microfibril density and porosity, which may provide a functional explanation for embolism fatigue."],["dc.identifier.doi","10.1163/22941932-20160128"],["dc.identifier.isi","000377342500003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41863"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Brill Academic Publishers"],["dc.relation.issn","2294-1932"],["dc.relation.issn","0928-1541"],["dc.title","INTERVESSEL PIT MEMBRANE THICKNESS AS A KEY DETERMINANT OF EMBOLISM RESISTANCE IN ANGIOSPERM XYLEM"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","443"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","New Phytologist"],["dc.bibliographiccitation.lastpage","458"],["dc.bibliographiccitation.volume","210"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Knutzen, Florian"],["dc.contributor.author","Delzon, Sylvain"],["dc.contributor.author","Jansen, Steven"],["dc.contributor.author","Müller‐Haubold, Hilmar"],["dc.contributor.author","Burlett, Regis"],["dc.contributor.author","Clough, Yann"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-07-19T14:07:49Z"],["dc.date.available","2018-07-19T14:07:49Z"],["dc.date.issued","2016"],["dc.identifier.doi","10.1111/nph.13798"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15188"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","How adaptable is the hydraulic system of European beech in the face of climate change-related precipitation reduction"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","961"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","New Phytologist"],["dc.bibliographiccitation.lastpage","964"],["dc.bibliographiccitation.volume","205"],["dc.contributor.author","Jansen, Steven"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Choat, Brendan"],["dc.date.accessioned","2018-11-07T10:01:39Z"],["dc.date.available","2018-11-07T10:01:39Z"],["dc.date.issued","2015"],["dc.identifier.doi","10.1111/nph.13229"],["dc.identifier.isi","000348730600005"],["dc.identifier.pmid","25580652"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38064"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1469-8137"],["dc.relation.issn","0028-646X"],["dc.title","Current controversies and challenges in applying plant hydraulic techniques"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.subtype","letter_note"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","329"],["dc.bibliographiccitation.journal","Journal of Theoretical Biology"],["dc.bibliographiccitation.lastpage","341"],["dc.bibliographiccitation.volume","455"],["dc.contributor.author","Link, Roman M."],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Choat, Brendan"],["dc.contributor.author","Jansen, Steven"],["dc.contributor.author","Cobb, Alexander R."],["dc.date.accessioned","2020-12-10T14:25:27Z"],["dc.date.available","2020-12-10T14:25:27Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.jtbi.2018.07.036"],["dc.identifier.issn","0022-5193"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72559"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Maximum-likelihood estimation of xylem vessel length distributions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]