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  The FRIABLE1 Gene Product Affects Cell Adhesion in Arabidopsis

Neumetzler, L., Humphrey, T., Lumba, S., Snyder, S., Yeats, T. H., Usadel, B., et al. (2012). The FRIABLE1 Gene Product Affects Cell Adhesion in Arabidopsis. PLoS One, 7(8), e42914. doi:10.1371/journal.pone.0042914.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-1F1F-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-1F20-C
Genre: Journal Article

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 Creators:
Neumetzler, L.1, Author              
Humphrey, T.2, Author
Lumba, S.2, Author
Snyder, S.2, Author
Yeats, T. H.2, Author
Usadel, B.3, Author              
Vasilevski, A.3, Author              
Patel, J.2, Author
Rose, J. K. C.2, Author
Persson, S.1, Author              
Bonetta, D.2, Author
Affiliations:
1Plant Cell Walls - Persson, Max Planck Research Groups, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753318              
2External Organizations, ou_persistent22              
3Integrative Carbon Biology, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753329              

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Free keywords: agrobacterium-mediated transformation suspension-cultured cells glucuronoxylan biosynthesis putative methyltransferase arabinogalactan-proteins pectic homogalacturonan cellulose biosynthesis fucosyl-transferase animal exostosins wall proteins
 Abstract: Cell adhesion in plants is mediated predominantly by pectins, a group of complex cell wall associated polysaccharides. An Arabidopsis mutant, friable1 (frb1), was identified through a screen of T-DNA insertion lines that exhibited defective cell adhesion. Interestingly, the frb1 plants displayed both cell and organ dissociations and also ectopic defects in organ separation. The FRB1 gene encodes a Golgi-localized, plant specific protein with only weak sequence similarities to known proteins (DUF246). Unlike other cell adhesion deficient mutants, frb1 mutants do not have reduced levels of adhesion related cell wall polymers, such as pectins. Instead, FRB1 affects the abundance of galactose- and arabinose-containing oligosaccharides in the Golgi. Furthermore, frb1 mutants displayed alteration in pectin methylesterification, cell wall associated extensins and xyloglucan microstructure. We propose that abnormal FRB1 action has pleiotropic consequences on wall architecture, affecting both the extensin and pectin matrices, with consequent changes to the biomechanical properties of the wall and middle lamella, thereby influencing cell-cell adhesion.

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Language(s): eng - English
 Dates: 2012-08-242012
 Publication Status: Published in print
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 Identifiers: ISI: ISI:000307500800030
DOI: 10.1371/journal.pone.0042914
ISSN: 1932-6203 (Electronic) 1932-6203 (Linking)
URI: ://000307500800030 http://www.plosone.org/article/fetchObjectAttachment.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0042914&representation=PDF
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Title: PLoS One
Source Genre: Journal
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Pages: - Volume / Issue: 7 (8) Sequence Number: - Start / End Page: e42914 Identifier: -