Proanthocyanidin oxidation of Arabidopsis seeds is altered in mutant of the high-affinity nitrate transporter NRT2.7

The seed-specific nitrate transporter AtNRT2.7 is involved in flavonoid accumulation as evidenced by the higher proanthocyanidin content in nrt2.7-2 mutant seeds. As TT10 laccase activity is not modified, the link between NRT2.7 and proanthocyanidin accumulation has yet to be discovered.

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Bibliographic Details
Published in:Journal of experimental botany 2014-03, Vol.65 (3), p.885-893
Main Authors: David, Laure C, Dechorgnat, Julie, Berquin, Patrick, Routaboul, Jean Marc, Debeaujon, Isabelle, Daniel-Vedele, Françoise, Ferrario-Méry, Sylvie
Format: Article
Language:English
Subjects:
Alleles
Anion Transport Proteins - genetics
Anion Transport Proteins - metabolism
Arabidopsis
Arabidopsis - genetics
Arabidopsis - metabolism
Arabidopsis Proteins - genetics
Arabidopsis Proteins - metabolism
Color
Flavonoids
Flavonoids - analysis
Flavonoids - metabolism
Flavonols
Gene Expression
Gene Expression Regulation, Plant
Genetic Complementation Test
Homozygote
laccase
Laccase - genetics
Laccase - metabolism
Life Sciences
mutants
Mutation
Nitrates
Nitrates - analysis
Nitrates - metabolism
Oxidation
Oxidation-Reduction
Phenotype
Phenotypes
Plant cells
Proanthocyanidins - metabolism
RESEARCH PAPER
Seeds
Seeds - genetics
Seeds - metabolism
Signal Transduction
Solubility
Testa
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Description
Summary:The seed-specific nitrate transporter AtNRT2.7 is involved in flavonoid accumulation as evidenced by the higher proanthocyanidin content in nrt2.7-2 mutant seeds. As TT10 laccase activity is not modified, the link between NRT2.7 and proanthocyanidin accumulation has yet to be discovered.
ISSN:0022-0957
1460-2431
DOI:10.1093/jxb/ert481