Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: aerial part
Publication DOI: 10.1071/AR99150Journal NLM ID: 0144065Publisher: East Melbourne: Commonwealth Scientific And Industrial Research Organization
Correspondence: r.simpson
pi.csiro.au
Institutions: CSIRO Plant Industry, Canberra, Australia, Dept of Animal Production, The University of Melbourne, Parkville, Australia, Industrial Research Limited, Lower Hutt, New Zealand
The concentrations of water-soluble carbohydrate (WSC) and its components, starch, total nitrogen, and dry matter of phalaris (Phalaris aquatica L. cv. Australian) pasture were varied by shading for periods ranging from 38.5 to 46.5 h. In unshaded pasture, WSC concentrations were lowest at sunrise [103 mg/g dry matter (DM)] and increased until early afternoon (to 160 mg/g DM). Sucrose and starch increased in concentration during daylight, whilst the concentrations of glucose, fructose, fructan, and a component of WSC considered to be mainly the carbohydrate moiety of glycoside(s) were relatively constant. The concentrations of starch, and all components of WSC except sucrose, were reduced by shading, but increased to the concentrations observed in the unshaded pasture within 2–4 h after removal of the cover. The fructans present in phalaris were determined to be oligosaccharides of degree of polymerisation (DP) 3 and DP 4 and high molecular mass fructans with DP >10. Nitrogen concentration of shaded pasture was initially higher (4.7% DM) than in unshaded pasture (3.9% DM), but decreased after removal of the shade cover. Dry matter content was reduced in shaded pasture, partly due to increased retention of water on the exterior of plants. The experiment was a precursor for a grazing trial in which the WSC content of pasture was to be altered by shading. It indicated that shading would potentially alter WSC and N concentrations, and DM content, but would have only a relatively small impact on the digestibility of the pasture.
glycosides, nitrogen, digestibility, nutritive value
Structure type: homopolymer
Trivial name: inulin
Compound class: EPS, polysaccharide, fructan, oligosaccharide
Contained glycoepitopes: IEDB_923067
Methods: methylation, TLC, acid hydrolysis, extraction, enzymatic assay, centrifugation, anthrone-sulfuric acid assay, ion exchange chromatography, nitrogen determination
Related record ID(s): 65160
NCBI Taxonomy refs (TaxIDs): 28479Reference(s) to other database(s): GTC:G25631OI
Show glycosyltransferases
There is only one chemically distinct structure:
Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: aerial part
Publication DOI: 10.1071/AR99150Journal NLM ID: 0144065Publisher: East Melbourne: Commonwealth Scientific And Industrial Research Organization
Correspondence: r.simpson
pi.csiro.au
Institutions: CSIRO Plant Industry, Canberra, Australia, Dept of Animal Production, The University of Melbourne, Parkville, Australia, Industrial Research Limited, Lower Hutt, New Zealand
The concentrations of water-soluble carbohydrate (WSC) and its components, starch, total nitrogen, and dry matter of phalaris (Phalaris aquatica L. cv. Australian) pasture were varied by shading for periods ranging from 38.5 to 46.5 h. In unshaded pasture, WSC concentrations were lowest at sunrise [103 mg/g dry matter (DM)] and increased until early afternoon (to 160 mg/g DM). Sucrose and starch increased in concentration during daylight, whilst the concentrations of glucose, fructose, fructan, and a component of WSC considered to be mainly the carbohydrate moiety of glycoside(s) were relatively constant. The concentrations of starch, and all components of WSC except sucrose, were reduced by shading, but increased to the concentrations observed in the unshaded pasture within 2–4 h after removal of the cover. The fructans present in phalaris were determined to be oligosaccharides of degree of polymerisation (DP) 3 and DP 4 and high molecular mass fructans with DP >10. Nitrogen concentration of shaded pasture was initially higher (4.7% DM) than in unshaded pasture (3.9% DM), but decreased after removal of the shade cover. Dry matter content was reduced in shaded pasture, partly due to increased retention of water on the exterior of plants. The experiment was a precursor for a grazing trial in which the WSC content of pasture was to be altered by shading. It indicated that shading would potentially alter WSC and N concentrations, and DM content, but would have only a relatively small impact on the digestibility of the pasture.
glycosides, nitrogen, digestibility, nutritive value
Structure type: homopolymer
Trivial name: methyl glucose lipopolysaccharide, glucan, maltosaccharide, α-1,4-D-glucan, amylose, α-glucan, glycogen backbone, α-(1,4)-glucan, starch, α-(1-4)-glucan, starch, glycogen
Compound class: EPS, O-polysaccharide, CPS, cell wall polysaccharide, glucan, polysaccharide, methyl glucose lipopolysaccharide
Contained glycoepitopes: IEDB_140629,IEDB_142488,IEDB_144998,IEDB_146664,IEDB_420417,IEDB_420418,IEDB_420421,IEDB_857742,IEDB_983931,SB_192
Methods: methylation, TLC, acid hydrolysis, extraction, enzymatic assay, centrifugation, anthrone-sulfuric acid assay, ion exchange chromatography, nitrogen determination
Related record ID(s): 65159
NCBI Taxonomy refs (TaxIDs): 28479Reference(s) to other database(s): GTC:G05740LL, GlycomeDB:
12100, CCSD:
4943, CBank-STR:819
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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