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Updated: Jul 10, 2026

Analysis of Protein Import into Chloroplasts Isolated from Stressed Plants
Published on: November 1, 2016
Of chromoplasts and chaperones
Giovanni Giuliano1, Gianfranco Diretto
1Italian Agency for New Technologies, Energy and the Environment, Casaccia Research Center, PO Box 2400, 00123 S.M. di Galeria, Roma, Italy. giuliano@casaccia.enea.it
Abstract:
Chromoplasts are carotenoid-accumulating plastids found in many fruits and flowers. In a new paper, Li and colleagues show that the Or gene of cauliflower induces differentiation of beta-carotene-containing chromoplasts in the (normally non-pigmented) curd tissue. This is the first time that a gene product controlling chromoplast differentiation is described. Or encodes an evolutionarily conserved DnaJ cysteine-rich domain-containing protein that can be used for metabolic engineering in crop plants, such as potato.
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