The progression of leaf senescence is gated by the cytosolic arginine pool.

Abstract excerpt

Leaf senescence aims to degrade cellular components to recover valuable nutrients and reallocate them to other organs1. Once this remobilization is complete, cells undergo a vacuolar-type of programmed cell death2, ultimately leading to the death of the entire organ. But how do cells from a senescing leaf 'know' when to die? If the cell death process per se is initiated too early, remobilization may not be...

Topics

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• Arabidopsis
• Arginine
• Cell Death
• Cytosol
• Mutation
• Plant Leaves