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dc.contributor.authorWightman, Raymonden
dc.contributor.authorPaul Aston,en
dc.contributor.authorSimon Wallis,en
dc.date.accessioned2018-05-03T08:26:11Z
dc.date.available2018-05-03T08:26:11Z
dc.date.issued2018-04en
dc.identifier.issn0367-2530
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/275463
dc.description.abstractSome sections of species within the genus Saxifraga deposit a chalky crust on the surface of their leaves, originating from the guttation medium produced by the sunken hydathodes found generally at or near the leaf margin. The organisation of the hydathode tissues, that of the rest of the leaf and the physiology of the crust is poorly understood. We have used cryo-SEM and cryo-fracture to study leaf tissue organisation and structure in Saxifraga scardica and compared it to the imaging data with the previously characterised Saxifraga cochlearis. We find S. scardica contains a transparent and tapered leaf margin containing thick walled cylindrical cells that may serve to deflect light to the adjacent palisade mesophyll tissue. Raman microscopy reveals the S. scardica leaf crust contains the rare and metastable calcium carbonate polymorph vaterite whereas the crust from S. cochlearis contains only calcite. Vaterite-crust is also observed on the leaves of some species within the section Porphyrion but is not found on members of the section Ligulatae. The implications of these findings are discussed.
dc.format.mediumUndetermineden
dc.languageengen
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleLeaf margin organisation and the existence of vaterite-producing hydathodes in the alpine plant Saxifraga scardicaen
dc.typeArticle
prism.endingPage34
prism.publicationDate2018en
prism.publicationNameFlora.en
prism.startingPage27
prism.volume241en
dc.identifier.doi10.17863/CAM.22687
dcterms.dateAccepted2018-02-12en
rioxxterms.versionofrecord10.1016/j.flora.2018.02.006en
rioxxterms.versionVoR*
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nd/4.0/en
rioxxterms.licenseref.startdate2018-04en
dc.contributor.orcidWightman, Raymond [0000-0003-1295-4875]
dc.identifier.eissn1618-0585
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idGatsby Charitable Foundation (unknown)
cam.orpheus.successThu Jan 30 13:00:44 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial-NoDerivatives 4.0 International