Update: Plant energy expenses: How to stretch the C budget (Plant Physiol)
Plant Science Research WeeklyBalancing the books means making sure that expenses don’t exceed income. In terms of a plant’s energy budget, most of the input comes from carbon fixed during photosynthesis. The output is much more diverse. Some fixed carbon is used for growth and stored in seeds, and some is respired to release…
Nitrogen-dependent binding of the transcription factor PBF1 contributes to the balance of protein and carbohydrate storage in maize endosperm (Plant Cell)
Plant Science Research WeeklyThe majority of maize endosperm is made of starch (70%) and proteins (10%) and their biosynthesis is a complex process which involves many enzymes. N-containing compounds, such as enzymes, amino acids, and nucleotides are crucial for C metabolism. Thus, when N levels are altered, the storage of proteins…
CLAVATA3/ESR-related 2 peptides regulate root sucrose level and root/shoot ratio in Arabidopsis (Plant Physiol)
Plant Science Research WeeklyRoots are dependent on shoot-produced sucrose for energy associated with growth and nutrient uptake. The CLAVATA3/ESR2-related peptides (CLEs) regulate several aspects of plant growth. Okamoto et al. present evidence on the involvement of CLEs in conveying the root sucrose demand to the shoot. Carbon…
Carbon flux through photosynthesis and central carbon metabolism show distinct patterns between algae, C3, and C4 plants (Nature Plants)
Plant Science Research WeeklyPhotosynthesis is an attractive target for improving crop yields, and tailoring downstream photosynthesis-associated metabolism is a relatively unexplored path for achieving this. Chlorella ohadii is the fastest growing photosynthetic organism identified, has high photosynthetic rates, and can survive…