Publications by authors named "Qiuxiu Yu"
Confers Cold Stress Tolerance in via Regulation of Flavonoid Biosynthesis.
Int J Mol Sci
September 2024
Article Synopsis
- WRKY transcription factor (TF) is important for plant stress responses, particularly under cold stress, and has been found to be upregulated in this condition.
- The study cloned a full-length WRKY gene from a specific subgroup and demonstrated that transgenic tobacco plants expressing this gene had a higher seed germination rate and increased levels of flavonoids, antioxidant enzymes, and proline content when exposed to cold stress.
- Further analysis revealed that the WRKY transcription factor binds to the promoter of flavonoid-related genes, enhancing their expression and contributing to improved cold stress tolerance in the plants.
Article Synopsis
- Michelia crassipes is unique among its species for having purple flowers, with its tepals changing color from green to purple.
- This study analyzed metabolic and transcriptomic data across three stages of tepal development, identifying key anthocyanins (cyanidin 3-rutinoside and delphinidin 3-glucoside) responsible for the purple color, along with specific flavone and flavonol compounds.
- The transcriptome analysis highlighted significant changes in gene expression related to flavonoid biosynthesis, particularly the roles of transcription factors (MYB, bHLH, WD40) and flavonoid transport, illustrating the complex mechanisms behind the color transformation.