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http://purl.uniprot.org/citations/27211345http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/27211345http://www.w3.org/2000/01/rdf-schema#comment"Cutin is an extracellular lipid polymer that contributes to protective cuticle barrier functions against biotic and abiotic stresses in land plants. Glycerol has been reported as a component of cutin, contributing up to 14% by weight of total released monomers. Previous studies using partial hydrolysis of cuticle-enriched preparations established the presence of oligomers with glycerol-aliphatic ester links. Furthermore, glycerol-3-phosphate 2-O-acyltransferases (sn-2-GPATs) are essential for cutin biosynthesis. However, precise roles of glycerol in cutin assembly and structure remain uncertain. Here, a stable isotope-dilution assay was developed for the quantitative analysis of glycerol by GC/MS of triacetin with simultaneous determination of aliphatic monomers. To provide clues about the role of glycerol in dicarboxylic acid (DCA)-rich cutins, this methodology was applied to compare wild-type (WT) Arabidopsis cutin with a series of mutants that are defective in cutin synthesis. The molar ratio of glycerol to total DCAs in WT cutins was 2:1. Even when allowing for a small additional contribution from hydroxy fatty acids, this is a substantially higher glycerol to aliphatic monomer ratio than previously reported for any cutin. Glycerol content was strongly reduced in both stem and leaf cutin from all Arabidopsis mutants analyzed (gpat4/gpat8, att1-2 and lacs2-3). In addition, the molar reduction of glycerol was proportional to the molar reduction of total DCAs. These results suggest "glycerol-DCA-glycerol" may be the dominant motif in DCA-rich cutins. The ramifications and caveats for this hypothesis are presented."xsd:string
http://purl.uniprot.org/citations/27211345http://purl.org/dc/terms/identifier"doi:10.1016/j.phytochem.2016.03.017"xsd:string
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/author"Pollard M."xsd:string
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/author"Yang W."xsd:string
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/author"Li-Beisson Y."xsd:string
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/author"Ohlrogge J."xsd:string
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/date"2016"xsd:gYear
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/name"Phytochemistry"xsd:string
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/pages"159-169"xsd:string
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/title"Quantitative analysis of glycerol in dicarboxylic acid-rich cutins provides insights into Arabidopsis cutin structure."xsd:string
http://purl.uniprot.org/citations/27211345http://purl.uniprot.org/core/volume"130"xsd:string
http://purl.uniprot.org/citations/27211345http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/27211345
http://purl.uniprot.org/citations/27211345http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/27211345
http://purl.uniprot.org/uniprot/#_Q5XF03-mappedCitation-27211345http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/27211345
http://purl.uniprot.org/uniprot/#_Q9LMM0-mappedCitation-27211345http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/27211345
http://purl.uniprot.org/uniprot/Q9LMM0http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/27211345
http://purl.uniprot.org/uniprot/Q5XF03http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/27211345