Abstract

Senescence is a highly regulated recycling process in which nutrients are translocated from deteriorating leaves to newly developing leaves, flowers, seeds, or roots (Lim et al., 2007; Gregersen et al., 2013). Chloroplast dismantling, a major event during senescence, involves the degradation of light-harvesting chlorophyll a/b-binding proteins (LHCPs) and the release of free chlorophyll (Chl) which is catabolized to phototoxic, cell-damaging Chl breakdown intermediates.

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