Results 171 to 180 of about 5,567 (216)
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Biopolyester Membranes of Plants: Cutin and Suberin
Science, 1980Cutin, a biopolyester composed of hydroxy and epoxy fatty acids, is the barrier between the aerial parts of higher plants and their environment. Suberin, a polymer containing aromatics and polyesters, functions as a barrier in underground parts, wound surfaces, and a variety of internal organs.
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Alkanetriols in psilotophyte cutins
Phytochemistry, 1975Abstract The covalently bonded components of the stem cutin of Psilotum include 16-hydroxyhexadecanoic acid and substantial amounts of hexadecane-1,8,16-triol. While of generally similar composition, leaf cutin of Tmesipteris contains a mixture of hexadecanetriol isomers. The findings suggest that psilotophyte cutins evolved in a different manner
Andrew B. Caldicott +2 more
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Cutin Composition of Five Finnish Berries
Journal of Agricultural and Food Chemistry, 2005The raw cutin (i.e., extractive-free isolated cuticular membrane) fraction from Finnish berries, sea buckthorn (Hippophaë rhamnoides), black currant (Ribes nigrum), cranberry (Vaccinium oxycoccos), lingonberry (Vaccinium vitis-idaea), and bilberry (Vaccinium myrtillus), was depolymerized by NaOMe-catalyzed methanolysis.
Heikki, Kallio +3 more
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Epoxy acids in the lipid polymer, cutin and their role in the biosynthesis of cutin
Biochemical and Biophysical Research Communications, 1971Abstract In apple skin slices oleic acid-1-14C was incorporated specifically into 18-hydroxyoleic acid, 10,18-dihydroxystearic acid and 9,10, 18-trihydroxystearic acid of cutin, whereas stearic acid-1-14C was not converted into these acids. Palmitic acid-1-14C, but neither palmitoleic acid-10-14C nor palmitelaidic acid-10-14C, was converted into 16 ...
P E, Kolattukudy +2 more
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Building lipid barriers: biosynthesis of cutin and suberin
Trends in Plant Science, 2008Cutin and suberin are the polymer matrices for lipophilic cell wall barriers. These barriers control the fluxes of gases, water and solutes, and also play roles in protecting plants from biotic and abiotic stresses and in controlling plant morphology.
Fred Beisson
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2011
This chapter examines lignin, which has proven to be a useful chemical biomarker for tracing vascular-plant inputs to aquatic systems. Cellulose, hemicellulose, and lignin generally make up >75% of the biomass of woody plant materials. Lignins are a group of macromolecular heteropolymers found in the cell wall of vascular plants that are made up of ...
Thomas S. Bianchi, Elizabeth A. Canuel
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This chapter examines lignin, which has proven to be a useful chemical biomarker for tracing vascular-plant inputs to aquatic systems. Cellulose, hemicellulose, and lignin generally make up >75% of the biomass of woody plant materials. Lignins are a group of macromolecular heteropolymers found in the cell wall of vascular plants that are made up of ...
Thomas S. Bianchi, Elizabeth A. Canuel
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Composition of cutin from coffee leaves
Phytochemistry, 1972Abstract The constituents of the cutin of coffee leaves have been identified using TLC, GLC and GLC-MS. Dihydroxyhexadecanoic acids comprise more than 60% of the total acids. Other compounds identified include C 16 -C 34 monobasic acids, C 14 and C 15 monohydroxymonobasic acids, 16-hydroxyhexadecanoic acid and monohydroxyhexadecane-1,16-dioic ...
P.J. Holloway, A.H.B. Deas, A.M. Kabaara
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The constituent acids of angiosperm cutins
Phytochemistry, 1970Abstract The composition of the cutin from the cuticles of twenty-four angiosperm leaves and fruits has been compared by GLC. The most abundant acid found in angiosperm cutin is confirmed as 10,16-dihydroxyhexadecanoic with 9,10,18-trihydroxyoctadecanoic occurring frequently and 16-hydroxyhexadecanoic less frequently.
E.A. Baker, P.J. Holloway
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2018
Plant waxes consisting of very long-chain, relatively nonpolar lipid molecules are associated primarily with the cuticle which extends in a continuous sheet exterior to the walls of the epidermal cells of aerial tissues. In underground tissues, stems undergoing secondary growth, and wound healing sites, waxes are associated with the suberin matrix, a ...
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Plant waxes consisting of very long-chain, relatively nonpolar lipid molecules are associated primarily with the cuticle which extends in a continuous sheet exterior to the walls of the epidermal cells of aerial tissues. In underground tissues, stems undergoing secondary growth, and wound healing sites, waxes are associated with the suberin matrix, a ...
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The constituent acids of gymnosperm cutins
Phytochemistry, 1972Abstract The constituent cutin acids of selected species of gymnosperms, a lycopod and a fern have been determined by GLC-MS of the methyl ester trimethylsilyl ethers. A large number of novel cutin acids has been found. Of particular significance is the occurrence of 9,16-dihydroxyhexadecanoic acid in certain species.
D.H. Hunneman, G. Eglinton
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