Abstract The color of flowers is one the main characteristics adopted for plants to attract pollinators ensure reproductive success plant, they are also important in their ornamental appeal Narcissus plant. In this study, we identified a NtMYB12 locus encoding an R2R3-MYB transcription factor. Comparative transcriptome analysis loss- and gain- tissue relative wild-type narcissus showed was main...

Anthocyanin biosynthesis determines the leaf color of Acer palmatum as a widely-planted landscape tree. Previously, ApMYB1 has been characterized positive regulator anthocyanin biosynthesis. To further elucidate mechanism coloration, present study identified basic helix-loop-helix (bHLH) transcription factor (ApbHLH1) through phylogenetic analysis 156 putative bHLH proteins in and eight referen...

The acylation of anthocyanins contributes to their structural diversity. Aromatic is responsible for the blue color and certain flowers. acyltransferase from Gentiana triflora Pall. (Gentianaceae) (Gt5,3′AT) catalyzes glucosyl moieties at 5 3′ positions anthocyanins. Anthocyanin transfers an acyl group a single position, such that Gt5,3′AT possesses unique enzymatic activity. Structural investi...

At present, there are many excellent cultivars of raspberry worldwide with different fruit colors, such as yellow, red, purple and black. Anthocyanin accumulation is responsible for flower coloration in plants. Anthocyanins belong to flavonoids which natural pigments widely distributed The MYB transcription factor (TF) plays a vital regulatory role the metabolic pathway anthocyanins. Here, RoMY...

Purple heading Chinese cabbage has become popular in recent years due to its attractive color and health benefits. However, purple varieties remain rare, the regulation mechanism of anthocyanin accumulation is still largely unknown. By introducing trait from Brassica juncea, a new cultivar (18M-245) was generated with deep leaves at both seedling adult stages. Anthocyanin 18M-245 increased when...

The Arabidopsis (Arabidopsis thaliana) sucrose transporter AtSUC1 (At1g71880) is highly expressed in pollen; however, its function has remained unknown. Here, we show that suc1 mutant pollen is defective in vivo, as evidenced by segregation distortion, and also has low rates of germination in vitro. AtSUC1-green fluorescent protein was localized to the plasma membrane in pollen tubes. AtSUC1 is...

The impact of water deficit on berry quality has been extensively investigated during the last decades. Nonetheless, there is a scarcity of knowledge on the performance of varieties exposed to a combination of high temperatures/water stress during the growing season and under vineyard conditions. The objective of this research was to investigate the effects of two irrigation regimes, sustained ...

In vacuoles isolated from petal upper epidermis o f Petunia hybrida through polybase-induced lysis of protoplasts the vacuolar localization o f x-mannosidase and x-galactosidase was dem on­ strated. No association was observed between the tonoplast and these hydrolases. Protoplasts from different mutant lines blocked in anthocyanin biosynthesis were treated with DEAE-dextran to release vacuoles...

A cDNA clone encoding a putative dihydroflavonol 4-reductase gene has been isolated from a strawberry (Fragaria x ananassa cv Chandler) DNA subtractive library. Northern analysis showed that the corresponding gene is predominantly expressed in fruit, where it is first detected during elongation (green stages) and then declines and sharply increases when the initial fruit ripening events occur, ...

We investigated the transcriptional regulation of anthocyanin biosynthesis in hairy roots system by ectopically expressing Rosea1 and Delila and we found something different from previous research. The RT-PCR results revealed that Rosea1 could activate early and late biosynthetic genes tested, including CHS, DFR and ANS. Delila enhanced the expression of CHS weakly, but did not influence DFR or...