Tag: Photosynthesis

Sometime in the Cretaceous period (dinosaur time!), some monocots acquired a special pathway for carbon fixation, rendering them more efficient particularly in hot or dry environments. In most monocots, carbon is fixed by Rubisco in the mesophyll cells. In the innovative pathway, carbon fixation is split…

Cao and Bai et al. reveal a conserved enzyme that makes many algae appear brown as opposed to green typical of land plants. https://doi.org/10.1093/plcell/koad116 Graham Peers1, Martin Lohr2, Xiaobo Li3,4 1 Department of Biology, Colorado State University; Fort Collins, USA. 2 Institut für…

Enhancing crop yield for future food supplies involves increasing photosynthetic efficiency, which can be achieved by improving photoprotection through non-photochemical quenching (NPQ). NPQ enables leaves to dissipate excess absorbed light energy as heat, minimizing the negative effects of photodamage.…

C4 photosynthesis is derived from C3 photosynthesis. When related genes are compared, those involved in C4 photosynthesis tend to be more highly expressed. To understand this phenomenon, Singh et al. undertook a very impressive approach to look at transcriptional regulation of essentially all the photosynthetic…

Photosynthesis is the major process which supports plant survival. It’s the kitchen serving food (sugars) to the plant by converting the light energy. Leaves are the major site of photosynthesis for most plants. However, certain plants evolved unconventional ways of performing photosynthesis. In a…

Reiter et al. investigate the molecular basis for coupling factor CF1 recruitment in Arabidopsis thaliana. The Plant Cell (2022). By Thilo Rühle Background: Thylakoid ATP synthases are impressive molecular engines that harness the light-driven proton gradient to generate ATP during photosynthesis.…

Rubisco (ribulose 1,5-bisphosphate carboxylase/oxygenase) is one of a kind, simultaneously recognized as one of the most abundant and important enzymes, and also widely characterized as flawed because it uses both O2 and CO2 as substrates, leading to both carboxylation and oxygenation of ribulose bisphosphate.…

Chloroplasts divide by binary fission driven by a protein ring, the position of which is regulated by the Min system (derived from the system in bacteria). The inner envelope membrane protein PARC6 (PARALOG OF ARC6) is a key component. Here Sun et al. generated crystal structures showing that PARC6 interacts…