Source:http://linkedlifedata.com/resource/pubmed/id/16496151
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
2006-6-15
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pubmed:abstractText |
Polysaccharide-linked hydroxycinnamoyl esters (PHEs) over-accumulate in the internodes of a rice (Oryza sativa L.) mutant, Fukei 71 (F71). This accumulation is accompanied by over-expression of phenylalanine ammonialyase (PAL). In this study, we show that only one member of the 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase (DAHPS) family expresses in close correlation with PAL. Furthermore, substrate availability to DAHPS is promoted by down-regulating the expression of plastidic pyruvate kinase (PKp), a competitor of DAHPS. Since the over-production of PHEs is caused by D50 gene disruption, these results suggest that specific enzymes in the phenylpropanoid and shikimate pathways are coordinately up-regulated. In addition, the results indicate that carbon-flow into the shikimate pathway is modified for the synthesis of PHEs, and is probably controlled by D50.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0721-7714
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
25
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
676-88
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pubmed:meshHeading |
pubmed-meshheading:16496151-3-Deoxy-7-Phosphoheptulonate Synthase,
pubmed-meshheading:16496151-Amino Acid Sequence,
pubmed-meshheading:16496151-Cell Wall,
pubmed-meshheading:16496151-Coumaric Acids,
pubmed-meshheading:16496151-Esters,
pubmed-meshheading:16496151-Gene Expression Regulation, Enzymologic,
pubmed-meshheading:16496151-Gene Expression Regulation, Plant,
pubmed-meshheading:16496151-Molecular Sequence Data,
pubmed-meshheading:16496151-Oryza sativa,
pubmed-meshheading:16496151-Phylogeny,
pubmed-meshheading:16496151-Polysaccharides
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pubmed:year |
2006
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pubmed:articleTitle |
3-Deoxy-D-arabino-heptulosonate 7-phosphate synthase is regulated for the accumulation of polysaccharide-linked hydroxycinnamoyl esters in rice (Oryza sativa L.) internode cell walls.
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pubmed:affiliation |
Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan.
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pubmed:publicationType |
Journal Article
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