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Ali and Shin et al. have characterized the cellular dynamics of coenocytic endosperm development in Arabidopsis thaliana. They demonstrate the role of actin filaments in controlling the final seed size.
Mitochondria and plastids are usually inherited maternally. Using genetic screens in tobacco, this study shows that low temperatures and knockout of the organellar exonuclease DPD1 lead to paternal transmission of plastids at high frequencies.
A comprehensive proteomics-based interactome map of adaptor protein complexes in Arabidopsis identifies P34 as a key regulator of the stability of clathrin-associated adaptors and their related trafficking routes.
This study revealed a regulatory system in which transcription factor and histone acetylation functions are coordinated for maintaining normal stem vascular cambium development for wood formation in Populus trichocarpa.
This study reported the structures of plant DNA demethylase ROS1 in complexes with substrate DNA, which revealed insights into the molecular basis of the plant-specific ROS1-mediated DNA demethylation.
Expression of Medicago truncatula symbiosis-specific nodule-specific cysteine-rich (NCR) genes in soybean—which lacks NCR—is induced by conserved transcription factors in the symbiotic nodule cells and provokes features of terminal differentiation of endosymbiotic Rhizobium bacteroids.
Jasmonic acid (JA) is involved in defence against herbivores. Once the plant is attacked, the memory of aggression can linger for weeks, including in newly formed leaves. The authors investigate what the induced changes in the transcriptome and methylome are, and uncouple short- and long-term effects of JA.