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First-pass extracted concept

GERANYLGERANYL DIPHOSPHATE REDUCTASE

Candidate: toolkit item1 source documents4 linked claims
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Aliases

SlGGDR

Evidence Snippets

GERANYLGERANYL DIPHOSPHATE REDUCTASE (SlGGDR) gene, responsible for the synthesis of the central tocopherol precursor phytyl diphosphate
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1gene regulationsupports2018Source 1DOIPubMed

Light-controlled expression of SlGGDR is mediated by SlPIF3.

Quoted textsource-backed
we show that light-controlled expression of the GERANYLGERANYL DIPHOSPHATE REDUCTASE (SlGGDR) gene ... is mediated by PHYTOCHROME-INTERACTING FACTOR 3 (SlPIF3)
Claim 2mechanismsupports2018Source 1DOIPubMed

In the absence of light, SlPIF3 physically interacts with the SlGGDR promoter and down-regulates SlGGDR expression.

Quoted textsource-backed
In the absence of light, SlPIF3 physically interacts with the promoter of SlGGDR, down-regulating its expression.
Claim 3mechanismsupports2018Source 1DOIPubMed

Light activation of phytochromes prevents SlPIF3 interaction with the SlGGDR promoter, causing transcriptional derepression and increased availability of phytyl diphosphate for tocopherol biosynthesis.

Quoted textsource-backed
light activation of phytochromes prevents the interaction between SlPIF3 and the SlGGDR promoter, leading to transcriptional derepression and higher availability of the PDP precursor for tocopherol biosynthesis
Claim 4regulatory effectsupports2018Source 1DOIPubMed

Ripening under light conditions increases tocopherol content in tomato fruit in a phytochrome-dependent manner through transcriptional regulation of biosynthetic genes.

Quoted textsource-backed
Our results show that ripening under light conditions increases tocopherol fruit content in a phytochrome-dependent manner by the transcriptional regulation of biosynthetic genes.