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Plant cells exhibit remarkable developmental plasticity, including the ability to regenerate at different stages of their life-cycle; a processes requiring the cellular reprogramming of a pool of non-differentiated or already differentiated cells. This special issue on ‘Cellular Reprogramming in Plants’ (introduced by Sugimoto et al. on pp. 651–655) focuses on two major occurrences: symbiotic interactions, where micro-organisms reprogram plant cells to aid their associations; and plant regeneration, where cells undergo reprogramming to repair or replenish wounded tissues or to make entire organisms de novo.
The cover image shows (left) an arbuscule of Rhizophagus irregularis formed inside a rice root cortex cell (courtesy Hector Montero, Univ. Cambridge, UK) and (right) LBD16 expression in Arabidopsis callus cells during de novo organ regeneration in tissue culture, which is required for pluripotency acquisition in callus cells (see Liu et al. 2018, pp. 739–748).
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