Publications by authors named "Su Young Shin"
Article Synopsis
- Plants have developed various defenses against insect herbivores by changing their metabolism, growth, and development, mainly driven by networks of phytohormones.
- The gaseous phytohormone ethylene (ET) is crucial for these defenses, though its exact role in relation to insect attacks remains unclear, with evidence suggesting it can have both positive and negative effects.
- The review highlights recent findings on the interactions between ET and other phytohormones in responding to herbivory and discusses the potential of using exogenous ET treatments to enhance plant defenses.
Article Synopsis
- The study focuses on var. chinensis, a plant known for its pharmaceutical and ornamental uses, by analyzing primary and secondary metabolites in different in vitro tissues (callus, adventitious roots, and shoots) using advanced chromatography techniques.
- The researchers optimized in vitro culture methods using hormonal treatments on bulbs to promote growth and metabolite production, with specific concentrations found to be most effective.
- Results indicated that shoots and roots cultivated in a particular nutrient medium yielded the highest levels of metabolites, suggesting that this method could be beneficial for mass-producing valuable compounds from the plant.
Article Synopsis
- LONG HYPOCOTYL5 (HY5) and STF1 are bZIP transcription factors that enhance photomorphogenesis and hormonal signaling in plants.
- The study reveals that the C-terminal region of STF1 is crucial for its function, as a mutant lacking this segment failed to exhibit HY5-like activity.
- Protein interactions were identified, indicating that STF1 works with other proteins, like GmSTO and GmCOP1, suggesting that the light signaling regulation in soybeans is similar to that in Arabidopsis.
Functional characterization of alpha-synuclein protein with antimicrobial activity.
Biochem Biophys Res Commun
September 2016
Article Synopsis
- Alpha-synuclein (α-Syn) is a protein linked to Parkinson's disease that is prevalent in brain tissues and is crucial for managing synaptic vesicles.
- Recent research indicates that α-Syn not only has a role in neurotransmission but also exhibits antibacterial properties against harmful bacteria like E. coli and Staphylococcus aureus.
- Additionally, α-Syn demonstrates antifungal activity against various strains and suggests that it may function as a natural antimicrobial peptide in the brain.
Article Synopsis
- Overexpressing AtNTRC in Arabidopsis thaliana improves tolerance to freezing and cold stress, while a knockout mutant shows sensitivity to these conditions.
- Biochemical analyses reveal that AtNTRC has cryoprotective properties for important enzymes like malate dehydrogenase and lactic dehydrogenase, and interacts with nucleic acids.
- AtNTRC protects RNA and DNA from oxidative damage, with evidence suggesting that its C-terminal thioredoxin domain is essential for forming complexes with these macromolecules, indicating its role in stabilizing them during cold stress.
Article Synopsis
- * The study identified CONSTANS (CO), a key player in floral induction, as an interacting partner of OBF4, specifically binding to CO’s B-box region.
- * OBF4 mRNA levels fluctuate daily, peaking at night, and OBF4 binds to the FLOWERING LOCUS T (FT) gene promoter, indicating its potential role in connecting plant defense mechanisms to flowering processes.
Article Synopsis
- LONG HYPOCOTYL5 (HY5) is a transcription factor in Arabidopsis that regulates light responses and root development, while the soybean protein STF1 shows similar functions as a homolog.
- Transgenic Arabidopsis plants overexpressing STF1 displayed restored normal growth patterns in the presence of light, indicating STF1's role in signaling pathways for hormones and light, much like HY5.
- Both STF1 and HY5 have similar DNA-binding properties, targeting specific sequences (ACGT motifs) in gene promoters to establish their interaction criteria, which helps in predicting natural binding sites for HY5 in the genome.