Dewdrops act as microreactors that influence flowering time
Plant Science Research WeeklyWe don’t often consider tiny dewdrops as having much influence on plant physiology, but a new study by Zheng et. al. reveals that these delicate dewdrops are active microreactors that can influence when plants flower. Working with Arabidopsis thaliana, researchers discovered that microscopic dewdroplets…
Local CLE peptides promotes rapid, ABA-independent stomatal closure
Plant Science Research WeeklyGuard cells might be some of the most well-characterized plant cells due to their accessibility, their importance in land plant survival, and their easily measured responses. Guard cells respond to several signals including light, CO2, vapor pressure deficit, ROS, and abscisic acid (ABA), which acts…
The HOS15-HDA9 complex associates with HYL1 to modulate miRNA expression in response to ABA signalling
Plant Science Research WeeklyMicroRNAs (miRNAs) play a crucial role in plant cell homeostasis, particularly in response to environmental biotic and abiotic stresses. The transcription of miRNAs is mediated by RNA Polymerase II which generates the primary miRNA transcripts (pri-miRNAs). HYPONASTIC LEAVES 1 (HYL1) is a miRNA biogenesis…
Unveiling the hot secrets of seed thermoinhibition: The endosperm’s role in plant survival
Plant Science Research WeeklyAn important phase in a plant’s life cycle is transforming from embryo to seedling, when it transitions from a protected space inside the seed to a vulnerable seedling. The capacity of the seedling to tolerate its surroundings determines its survival and eventual reproductive success. In addition to…
The MIEL1-ABI5/MYB30 regulatory module fine tunes abscisic acid signaling during seed germination (JIPB)
Plant Science Research WeeklyAbscisic acid (ABA) is a phytohormone that plays a crucial role in the inhibition of seed germination, and the transcription factor ABI5 is the final and common downstream factor that represses germination. Many proteins are known to inhibit ABI5, such as the mediator complex subunit MED25 or other transcription…