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A new protein degradation pathway driven by late-endosome-localized MULTIDRUG AND TOXIC COMPOUND EXTRUSION (MATE) efflux transporters opposes autophagy at the onset of senescence. Paradoxically, the new pathway requires a central component of autophagy.
The vacuole is a plant’s major phosphate (Pi) pool. Cellular Pi homeostasis highly depends on shuttling Pi between vacuoles and the cytosol. Glycerol 3-phosphate transporter types have now been identified as tonoplast-localized vacuolar Pi efflux transporters, integrating vacuolar Pi transport systems in plants.
Magnoliid genomes provide novel insight into early angiosperm evolution, showing how whole-genome duplication and proliferation of transposable elements have shaped these genomes. Now, two papers giving differing views of early angiosperm phylogeny, raise questions about the relationships among eudicots, monocots and magnoliids.
