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A rice diterpenoid gene cluster is reported that controls the biosynthesis of 5,10-diketo-casbene, a phytoalexin that confers resistance to rice bacterial blight and blast fungus. It recently evolved in the japonica subspecies under artificial selection.
A chromatin-based, RNA interference (RNAi)-independent mechanism re-establishes DNA methylation on heterochromatic transposable elements that lost silent marks in previous generations. Multiple factors including CG methylation and H2A.W replacement influence the efficiency of this methylation reprogramming mechanism.
The landscape of forest and human activity is ever shifting, but new large-scale trends are causing exceptional changes and potential space for new conservation and development for communities dependent on forests.
This perspective highlights the new species-independent analytical tools with a focus on plant nanosensors and portable Raman spectroscopy, and evaluates their applications in agriculture, such as detecting plant stresses and monitoring crop physiology.
A chromatin-based, RNAi-independent mechanism is uncovered that reestablishes DNA methylation on heterochromatin transposable elements and is impacted by multiple factors, including CG methylation, H3K9 demethylation and replacement of H2A variants.
The insertion of magnesium into protoporphyrin starts the biosynthesis of chlorophyll. X-ray crystallography, computational modelling, mutagenesis and enzymology combined probe the magnesium chelatase complex’s structure and catalytic function.
The structural basis of the interactions between Rubisco and its intrinsically disordered linker protein provides insight into phase separation within the algal pyrenoid, an organelle responsible for around a third of global CO2 fixation.
In most C4 lineages, photosynthesis is compartmented between mesophyll and bundle sheath cells. Using the C3 model Arabidopsis, this study identifies cis-elements and transcription factors driving gene expression restricted to bundle sheath strands.