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dc.contributor.authorFörste, Frank
dc.contributor.authorMantouvalou, Ioanna
dc.contributor.authorKanngiesser, Birgit
dc.contributor.authorStosnach, Hagen
dc.contributor.authorLachner, Lena Anna-Maria
dc.contributor.authorFischer, Karsten
dc.contributor.authorKrause, Kirsten
dc.date.accessioned2020-03-05T11:59:50Z
dc.date.available2020-03-05T11:59:50Z
dc.date.issued2019-10-11
dc.description.abstractThe uptake of inorganic nutrients by rootless parasitic plants, which depend on host connections for all nutrient supplies, is largely uncharted. Using X‐ray fluorescence spectroscopy (XRF), we analyzed the element composition of macro‐ and micronutrients at infection sites of the parasitic angiosperm <i>Cuscuta reflexa</i> growing on hosts of the genus <i>Pelargonium</i>. Imaging methods combining XRF with 2‐D or 3‐D (confocal) microscopy show that most of the measured elements are present at similar concentrations in the parasite compared to the host. However, calcium and strontium levels drop pronouncedly at the host/parasite interface, and manganese appears to accumulate in the host tissue surrounding the interface. Chlorine is present in the haustorium at similar levels as in the host tissue but is decreased in the stem of the parasite. Thus, our observations indicate a restricted uptake of calcium, strontium, manganese and chlorine by the parasite. Xylem‐mobile dyes, which can probe for xylem connectivity between host and parasite, provided evidence for an interspecies xylem flow, which in theory would be expected to carry all of the elements indiscriminately. We thus conclude that inorganic nutrient uptake by the parasite Cuscuta is regulated by specific selective barriers whose existence has evaded detection until now.en_US
dc.identifier.citationFörste, Mantouvalou, Kanngiesser, Stosnach H, Lachner LA, Fischer K, Krause K. Selective mineral transport barriers at Cuscuta-host infection sites. Physiologia Plantarum : An International Journal for Plant Biology. 2019en_US
dc.identifier.cristinIDFRIDAID 1766305
dc.identifier.doi10.1111/ppl.13035
dc.identifier.issn0031-9317
dc.identifier.issn1399-3054
dc.identifier.urihttps://hdl.handle.net/10037/17642
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.ispartofLachner, L.A.M. (2022). How to tame a parasite - Developing biotechnological pipelines for gene function studies in <i>Cuscuta</i>. (Doctoral thesis). <a href=https://hdl.handle.net/10037/24976>https://hdl.handle.net/10037/24976</a>.
dc.relation.journalPhysiologia Plantarum : An International Journal for Plant Biology
dc.relation.projectIDTromsø forskningsstiftelse: 16-TF-KKen_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2019 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400en_US
dc.titleSelective mineral transport barriers at Cuscuta-host infection sitesen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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