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Senescence
When and how to die - JXB Special issue on Plant Senescence
15 February 2018

Every year, autumn or fall brings plant senescence to us in spectacular fashion: changing leaf colour, then leaves shed and bare branches. Where seasonal change is more subtle, nevertheless the demise of leaves is always around even as new growth emerges. Beneath this, underlying metabolic change in dying leaves and redistribution of nutrients is fundamental to survival. But we still don’t know how plants ‘know’ when and how to die.