OsTTG1 , a WD40 repeat gene, regulates anthocyanin biosynthesis in rice

2021 ◽  
Author(s):  
Xinghai Yang ◽  
Junrui Wang ◽  
Xiuzhong Xia ◽  
Zongqiong Zhang ◽  
Jie He ◽  
...  
Keyword(s):  
Anthocyanin Biosynthesis ◽  
Wd40 Repeat

scholarly journals The TRANSPARENT TESTA GLABRA1 Locus, Which Regulates Trichome Differentiation and Anthocyanin Biosynthesis in Arabidopsis, Encodes a WD40 Repeat Protein

1999 ◽  
Vol 11 (7) ◽  
pp. 1337 ◽  
Author(s):  
Amanda R. Walker ◽  
Paul A. Davison ◽  
Agnese C. Bolognesi-Winfield ◽  
Celia M. James ◽  
N. Srinivasan ◽  
...  
Keyword(s):  
Anthocyanin Biosynthesis ◽  
Wd40 Repeat ◽  
Repeat Protein ◽  
Transparent Testa

scholarly journals The TRANSPARENT TESTA GLABRA1 Locus, Which Regulates Trichome Differentiation and Anthocyanin Biosynthesis in Arabidopsis, Encodes a WD40 Repeat Protein

1999 ◽  
Vol 11 (7) ◽  
pp. 1337-1349 ◽  
Author(s):  
Amanda R. Walker ◽  
Paul A. Davison ◽  
Agnese C. Bolognesi-Winfield ◽  
Celia M. James ◽  
N. Srinivasan ◽  
...  
Keyword(s):  
Anthocyanin Biosynthesis ◽  
Wd40 Repeat ◽  
Repeat Protein ◽  
Transparent Testa

A pomegranate (Punica granatum L.) WD40-repeat gene is a functional homologue of Arabidopsis TTG1 and is involved in the regulation of anthocyanin biosynthesis during pomegranate fruit development

Planta ◽  
2011 ◽  
Vol 234 (5) ◽  
pp. 865-881 ◽  
Author(s):  
Zohar Ben-Simhon ◽  
Sylvie Judeinstein ◽  
Talia Nadler-Hassar ◽  
Taly Trainin ◽  
Irit Bar-Ya’akov ◽  
...  
Keyword(s):  
Fruit Development ◽  
Anthocyanin Biosynthesis ◽  
Punica Granatum ◽  
Wd40 Repeat ◽  
Pomegranate Fruit ◽  
Punica Granatum L

scholarly journals The Light-Induced WD40-Repeat Transcription Factor DcTTG1 Regulates Anthocyanin Biosynthesis in Dendrobium candidum

2021 ◽  
Vol 12 ◽  
Author(s):  
Ning Jia ◽  
Jingjing Wang ◽  
Yajuan Wang ◽  
Wei Ye ◽  
Jiameng Liu ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Molecular Mechanisms ◽  
Anthocyanin Biosynthesis ◽  
Raw Material ◽  
Anthocyanin Synthesis ◽  
Anthocyanin Content ◽  
Anthocyanin Accumulation ◽  
Wd40 Repeat ◽  
Strong Light ◽  
Dendrobium Candidum

Dendrobium candidum is used as a traditional Chinese medicine and as a raw material in functional foods. D. candidum stems are green or red, and red stems are richer in anthocyanins. Light is an important environmental factor that induces anthocyanin accumulation in D. candidum. However, the underlying molecular mechanisms have not been fully unraveled. In this study, we exposed D. candidum seedlings to two different light intensities and found that strong light increased the anthocyanin content and the expression of genes involved in anthocyanin biosynthesis. Through transcriptome profiling and expression analysis, we identified a WD40-repeat transcription factor, DcTTG1, whose expression is induced by light. Yeast one-hybrid assays showed that DcTTG1 binds to the promoters of DcCHS2, DcCHI, DcF3H, and DcF3′H, and a transient GUS activity assay indicated that DcTTG1 can induce their expression. In addition, DcTTG1 complemented the anthocyanin deficiency phenotype of the Arabidopsis thaliana ttg1-13 mutant. Collectively, our results suggest that light promotes anthocyanin accumulation in D. candidum seedlings via the upregulation of DcTTG1, which induces anthocyanin synthesis-related gene expression.

scholarly journals The Purple Leaf (pl6) Mutation Regulates Leaf Color by Altering the Anthocyanin and Chlorophyll Contents in Rice

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1477
Author(s):  
Asadullah Khan ◽  
Sanaullah Jalil ◽  
Huan Cao ◽  
Yohannes Tsago ◽  
Mustapha Sunusi ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Anthocyanin Biosynthesis ◽  
Light Attenuation ◽  
Transcript Level ◽  
Underlying Mechanism ◽  
Anthocyanin Accumulation ◽  
Morphological Marker ◽  
Chlorophyll Contents ◽  
Rice Mutant ◽  
Purple Coloration

The anthocyanin biosynthesis attracts strong interest due to the potential antioxidant value and as an important morphological marker. However, the underlying mechanism of anthocyanin accumulation in plant tissues is not clearly understood. Here, a rice mutant with a purple color in the leaf blade, named pl6, was developed from wild type (WT), Zhenong 41, with gamma ray treatment. By map-based cloning, the OsPL6 gene was located on the short arm of chromosome 6. The multiple mutations, such as single nucleotide polymorphism (SNP) at −702, −598, −450, an insertion at −119 in the promoter, three SNPs and one 6-bp deletion in the 5′-UTR region, were identified, which could upregulate the expression of OsPL6 to accumulate anthocyanin. Subsequently, the transcript level of structural genes in the anthocyanin biosynthesis pathway, including OsCHS, OsPAL, OsF3H and OsF3′H, was elevated significantly. Histological analysis revealed that the light attenuation feature of anthocyanin has degraded the grana and stroma thylakoids, which resulted in poor photosynthetic efficiency of purple leaves. Despite this, the photoabatement and antioxidative activity of anthocyanin have better equipped the pl6 mutant to minimize the oxidative damage. Moreover, the contents of abscisic acid (ABA) and cytokanin (CK) were elevated along with anthocyanin accumulation in the pl6 mutant. In conclusion, our results demonstrate that activation of OsPL6 could be responsible for the purple coloration in leaves by accumulating excessive anthocyanin and further reveal that anthocyanin acts as a strong antioxidant to scavenge reactive oxygen species (ROS) and thus play an important role in tissue maintenance.

scholarly journals Repressors of anthocyanin biosynthesis

2021 ◽  
Author(s):  
Amy M. LaFountain ◽  
Yao‐Wu Yuan
Keyword(s):  
Anthocyanin Biosynthesis
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