Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2006-6-15
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0721-7714
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
676-88
pubmed:meshHeading
pubmed:year
2006
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.
pubmed:affiliation
Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan.
pubmed:publicationType
Journal Article