Silicon Promotes Exodermal Casparian Band Formation in Si-Accumulating and Si-Excluding Species by Forming Phenol Complexes

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dc.identifier.uri http://dx.doi.org/10.15488/269
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/291
dc.contributor.author Fleck, Alexander T.
dc.contributor.author Schulze, Sascha
dc.contributor.author Hinrichs, Martin
dc.contributor.author Specht, Andre
dc.contributor.author Wassmann, Friedrich
dc.contributor.author Schreiber, Lukas
dc.contributor.author Schenk, Manfred K.
dc.date.accessioned 2016-06-13T14:30:39Z
dc.date.available 2016-06-13T14:30:39Z
dc.date.issued 2015-09-18
dc.identifier.citation Fleck, Alexander T.; Schulze, Sascha; Hinrichs, Martin; Specht, Andre; Wassmann, Friedrich; Schreiber, Lukas; Schenk, Manfred K.: Silicon Promotes Exodermal Casparian Band Formation in Si-Accumulating and Si-Excluding Species by Forming Phenol Complexes. In: PloS ONE 10 (2015), Nr. 9, e0138555. DOI: http://dx.doi.org/10.1371/journal.pone.0138555
dc.description.abstract We studied the effect of Silicon (Si) on Casparian band (CB) development, chemical composition of the exodermal CB and Si deposition across the root in the Si accumulators rice and maize and the Si non-accumulator onion. Plants were cultivated in nutrient solution with and without Si supply. The CB development was determined in stained root cross-sections. The outer part of the roots containing the exodermis was isolated after enzymatic treatment. The exodermal suberin was transesterified with MeOH/BF3 and the chemical composition was measured using gas chromatography-mass spectroscopy (GC-MS) and flame ionization detector (GC-FID). Laser ablation-inductively coupled plasma-mass spectroscopy (LA-ICP-MS) was used to determine the Si deposition across root cross sections. Si promoted CB formation in the roots of Si-accumulator and Si non-accumulator species. The exodermal suberin was decreased in rice and maize due to decreased amounts of aromatic suberin fractions. Si did not affect the concentration of lignin and lignin-like polymers in the outer part of rice, maize and onion roots. The highest Si depositions were found in the tissues containing CB. These data along with literature were used to suggest a mechanism how Si promotes the CB development by forming complexes with phenols. eng
dc.description.sponsorship DFG/SCHR 506/12-1
dc.language.iso eng
dc.publisher San Francisco : Public Library Science
dc.relation.ispartofseries PLoS ONE 10 (2015), Nr. 9
dc.rights CC BY 4.0 Unported
dc.rights.uri http://creativecommons.org/licenses/by/4.0/
dc.subject rice oryza-sativa eng
dc.subject radial hydraulic conductivity eng
dc.subject zea-mays l. eng
dc.subject endodermal cell-walls eng
dc.subject reduces sodium uptake eng
dc.subject chemical-composition eng
dc.subject apoplastic barriers eng
dc.subject lignin biosynthesis eng
dc.subject saline conditions eng
dc.subject clivia-miniata eng
dc.subject.ddc 580 | Pflanzen (Botanik) ger
dc.subject.ddc 570 | Biowissenschaften, Biologie ger
dc.title Silicon Promotes Exodermal Casparian Band Formation in Si-Accumulating and Si-Excluding Species by Forming Phenol Complexes eng
dc.type article
dc.type Text
dc.relation.essn 1932-6203
dc.relation.doi http://dx.doi.org/10.1371/journal.pone.0138555
dc.bibliographicCitation.issue 9
dc.bibliographicCitation.volume 10
dc.bibliographicCitation.firstPage e0138555
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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