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

Download statistics - Document (COUNTER):

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

Repository version

To cite the version in the repository, please use this identifier: https://doi.org/10.15488/269

Selected time period:

year: 
month: 

Sum total of downloads: 155




Thumbnail
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.
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2015-09-18
Appears in Collections:Naturwissenschaftliche Fakultät

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 141 90.97%
2 image of flag of United States United States 2 1.29%
3 image of flag of China China 2 1.29%
4 image of flag of No geo information available No geo information available 1 0.65%
5 image of flag of Russian Federation Russian Federation 1 0.65%
6 image of flag of Serbia Serbia 1 0.65%
7 image of flag of Latvia Latvia 1 0.65%
8 image of flag of Kenya Kenya 1 0.65%
9 image of flag of Colombia Colombia 1 0.65%
10 image of flag of Belgium Belgium 1 0.65%
    other countries 3 1.94%

Further download figures and rankings:


Hinweis

Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.

Search the repository


Browse