Pheophorbide a may regulate jasmonate signaling during dark-induced senescence
Plant Science Research Weekly
During leaf senescence, nitrogen-rich chlorophyll is broken down through a regulated process so that nitrogen-containing compounds can be reassimilated into the plant body. Chlorophyll catabolites are sequestered in the vacuole as linear tetrapyrroles known as phyllobilins, produced through the action…
The Epigenetics of Leaf Senescence
Research, The Plant Cell, The Plant Cell: In a NutshellLiu et al. explore the mechanism underlying the epigenetic reprograming of senescence-associated gene expression during leaf senescence. Plant Cell https://doi.org/10.1105/tpc.18.00693
By Peng Liu, Jing Bo Jin, and Xiaofeng Cao, Chinese Academy of Sciences, Beijing, China.
Background: Leaf…
Leaf senescence in Arabidopsis thaliana is regulated by a histone H3K4 demethylase (Plant Cell)
Plant Science Research WeeklyLeaf senescence is the final stage of leaf development where the organ turns yellow and programmed cell death occurs. While it is generally understood that the regulation of senescence associated genes (SAGs) is dependent on the trimethylation of histone H3 at lysine 4 (H3K4me3), the exact mechanism…