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Abiotic stresses challenge plant growth. In response, plants often rapidly accumulate proline. This study reveals the filament structures of plant P5CS, the key enzyme in proline synthesis, elucidating a unique mechanism for its efficient catalysis.
Repeat expansions can induce gene silencing exemplified by growth defects in plants to genetic diseases in humans. This paper shows key roles for post-translational modifiers, histone readers and the polycomb repressive complex in this gene silencing.
Han et al. develop BoCENH3 mutants which trigger paternal haploid induction in Brassica oleracea. On the basis of this haploid inducer line, a workable system is proposed for transferring cytoplasmic male sterility to broccoli inbred lines.
This study reports that in European beech masting, the summer solstice serves as a celestial trigger that enables cohesive timekeeping across distant beech populations, allowing seed production to be synchronized at a subcontinental scale.
Cryogenic electron microscopy structures of DDM1–nucleosome complexes in ADP–BeFx-bound, ADP-bound and nucleotide-free conformations reveal insights into the mechanism underlying chromatin remodelling by DDM1, a key chromatin remodeller involved in plant DNA methylation.
The authors developed a platform for rapid identification of interacting plant immune receptors and pathogen avirulence proteins by library screening in protoplasts, then used it to identify new wheat stem rust Avr genes recognized by known wheat resistance genes.
Glandular trichomes (GTs) are biofactories that produce and store specialized compounds beneficial to plants as well as to humans. Using cucumber, we have discovered a new cell wall structure, ‘neck strip’, allowing GTs to function as biofactories.
Transposable element proliferation poses considerable threats to genomes. A previously unknown methyl reader, MBD2, represses transposable elements during male gametogenesis. MBD2 acts with a high degree of redundancy with other silencing pathways, together preserving genome stability.