Paper · 2018 · Plant Cell & Environment

The bZip transcription factor HY5 mediates CRY1a‐induced anthocyanin biosynthesis in tomato

Chao‐Chao Liu; Cheng Chi; Li‐Juan Jin; et al.

4
claims
7
verbatim quotes
254
citations
2
research areas
✓
Open access

Abstract

The production of anthocyanin is regulated by light and corresponding photoreceptors. In this study, we found that exposure to blue light and overexpression of CRY1a are associated with increased accumulation of anthocyanin in tomato (Solanum lycopersicum L.). These responses are the result of changes in mRNA and the protein levels of SlHY5, which is a transcription factor. In vitro and in vivo experiments using electrophoretic mobility shift assay and ChIP-qPCR assays revealed that SlHY5 could directly recognize and bind to the G-box and ACGT-containing element in the promoters of anthocyanin biosynthesis genes, such as chalcone synthase 1, chalcone synthase 2, and dihydroflavonol 4-reductase. Silencing of SlHY5 in OE-CRY1a lines decreased the accumulation of anthocyanin. The findings presented here not only deepened our understanding of how light controls anthocyanin biosynthesis and associated photoprotection in tomato leaves, but also allowed us to explore potential targets for improving pigment production.

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Claims 4

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Blue light exposure and CRY1a overexpression are associated with increased anthocyanin accumulation in tomato.

Treatment
exposure to blue light and overexpression of CRY1ae1
Outcome
accumulation of anthocyanine1
Direction
increasede1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“In this study, we found that exposure to blue light and overexpression of CRY1a are associated with increased accumulation of anthocyanin in tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · abstract, characters 86–259 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The anthocyanin responses are the result of changes in mRNA and protein levels of SlHY5 in tomato.

Gene
SlHY5e2
Outcome
responsese2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“In this study, we found that exposure to blue light and overexpression of CRY1a are associated with increased accumulation of anthocyanin in tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · abstract, characters 86–259 · show in text ↑
e2

“These responses are the result of changes in mRNA and the protein levels of SlHY5, which is a transcription factor”

✓ located verbatim in the source · abstract, characters 261–375 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

SlHY5 binds the G-box and ACGT-containing element in the promoters of anthocyanin biosynthesis genes in tomato.

Gene
SlHY5e3
Outcome
bind to the G-box and ACGT-containing elemente3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“In this study, we found that exposure to blue light and overexpression of CRY1a are associated with increased accumulation of anthocyanin in tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · abstract, characters 86–259 · show in text ↑
e3

“In vitro and in vivo experiments using electrophoretic mobility shift assay and ChIP-qPCR assays revealed that SlHY5 could directly recognize and bind to the G-box and ACGT-containing element in the promoters of anthocyanin biosynthesis genes, such as chalcone synthase 1, chalcone synthase 2, and dihydroflavonol 4-reductase”

✓ located verbatim in the source · abstract, characters 377–702 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Silencing SlHY5 in OE-CRY1a tomato lines decreased anthocyanin accumulation.

Material
OE-CRY1a linese4
Treatment
Silencing of SlHY5 in OE-CRY1a linese4
Gene
SlHY5e4
Outcome
accumulation of anthocyanine4
Direction
decreasede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“In this study, we found that exposure to blue light and overexpression of CRY1a are associated with increased accumulation of anthocyanin in tomato (Solanum lycopersicum L.)”

✓ located verbatim in the source · abstract, characters 86–259 · show in text ↑
e4

“Silencing of SlHY5 in OE-CRY1a lines decreased the accumulation of anthocyanin”

✓ located verbatim in the source · abstract, characters 704–782 · show in text ↑

loss of function · quality: phytochemicals · Solanum lycopersicum (tomato)Positive and negative results

16 papers: 6 positive, 10 negative or no effect

9 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.