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In this study, Gómez-Fernández and colleagues show that crops were selected from wild progenitors with productive ecophysiological traits, conflicting with the hypothesis that these resource-acquisitive traits are a result of human domestication.
Xu et al. report structures of the Arabidopsis cytokinin importer AZG1 in the apo, trans-zeatin-bound, 6-benzyleaminopurine-bound and kinetin-bound states, and elucidate an elevator transport model for the AZG1-mediated cytokinin uptake.
Feng and Zhang et al. develop a micrografting technique for conifer trees allowing distant relatives to join. Grafting in conifers uses a similar process to that in eudicots, and by introducing a conifer graft regulator to Arabidopsis, grafting and regeneration are enhanced.
This study demonstrates an efficient method for capturing key regulators of target genes named CASPA–dCas9. With this method, the authors uncover the precise regulatory mechanism and key factors controlling SERRATE expression in Arabidopsis.
Ligand-gated ion channels can be desensitized to control signalling outputs. This study reports the calmodulin-mediated, Ca2+-dependent desensitization of plant GLR channels, revealing a negative feedback loop in the orchestration of plant systemic wound responses.
Plant roots can respond to the environment by modifying cell type development. Here, the molecular pathways controlling root exodermal suberin are defined, as is its role in drought response. Modulating exodermal suberin levels can be a target for improved plant environmental resilience.