Publications by authors named "C Delker"
Article Synopsis
- Plants have developed mechanisms to adapt their growth in response to environmental changes, with ELF3 being a key regulator that impacts their circadian clock and temperature sensitivity.
- Research on Arabidopsis thaliana, specifically its prion-like domain (PrLD) within ELF3, revealed its function as a thermosensor at high temperatures, but its effectiveness in other plant species remains uncertain.
- Variations in the length of polyglutamine (polyQ) repeats in ELF3 show wide diversity among A. thaliana accessions, but this variation is weakly linked to geographic and climatic factors, suggesting that while it may enhance ELF3's role in thermomorphogenesis, it isn't a major factor for environmental adaptation in other plants.
Temperature-induced elongation of hypocotyls, petioles, and roots, together with hyponastic leaf responses, constitute key model phenotypes that can be used to assess a plant's capacity for thermomorphogenesis. Phenotypic responses are often quantified at a single time point during seedling development at different temperatures. However, to capture growth dynamics, several time points need to be assessed, and ideally continuous measurements are taken.
View Article and Find Full Text PDFIn 1998, Bill Gray and colleagues showed that warm temperatures trigger arabidopsis hypocotyl elongation in an auxin-dependent manner. This laid the foundation for a vibrant research discipline. With several active members of the 'thermomorphogenesis' community, we here reflect on 25 years of elevated ambient temperature research and look to the future.
View Article and Find Full Text PDFRoots are highly plastic organs enabling plants to adapt to a changing below-ground environment. In addition to abiotic factors like nutrients or mechanical resistance, plant roots also respond to temperature variation. Below the heat stress threshold, Arabidopsis thaliana seedlings react to elevated temperature by promoting primary root growth, possibly to reach deeper soil regions with potentially better water saturation.
View Article and Find Full Text PDFArticle Synopsis
- Plants exhibit phenotypic plasticity, allowing them to adapt their structure and development to varying environmental conditions, particularly through a process called thermomorphogenesis in response to higher temperatures.
- In Arabidopsis thaliana, the transcription factor PIF4 plays a crucial role in coordinating these morphological changes, influenced by different thermosensing mechanisms and regulators.
- The review discusses recent discoveries regarding the factors that modulate PIF4 expression and activity, and emphasizes the importance of organ- and tissue-specific responses in regulating thermomorphogenesis.