Constraint-based modelling predicts C4 photosynthesis evolves under resource limitation from an ancestral ground state of C3 photosynthesis and attributes divergent metabolic routes in extant C4 subtypes to light.
Metabolic exaptation of an anaplerotic nitrogen cycle between bundle sheath and mesophyll cells may explain the remarkably frequent convergent evolution of C4 photosynthesis.
Maria Ermakova, Hannah Osborn ... Susanne von Caemmerer
The SiPIP2;7 aquaporin is a functional CO2 pore that can be used to improve CO2 diffusion at the interface between the airspace and leaf mesophyll which limits C4 photosynthesis.
OsNF-YB7, an ortholog of Arabidopsis LEC1, is a negative regulator of Chl biosynthesis in rice embryos by interacting with OsGLK1 to inhibit the transactivity of OsGLK1.
Analysis of chromerid algal genomes reveals how apicomplexans have evolved from free-living algae into successful eukaryotic parasites via massive losses and re-inventing functional roles of genes.
