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New insight into photosynthesis could help grow more resilient plants | WSU Insider
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New insight into photosynthesis could help grow more resilient plants
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A study led by LMU plant biologist Hans-Henning Kunz uncovers a new role for ion transporters: they participate in gene regulation in chloroplasts.
In plants, photosynthesis takes place in intracellular factories called chloroplasts. Plant chloroplasts evolved from photosynthetic cyanobacteria, which were engulfed by a non-photosynthetic cell in the course of evolution. As a result of this evolutionary event, chloroplasts possess two envelope membranes, and have retained functional remnants of their original cyanobacterial genomes. Henning Kunz (LMU Biocenter), his group, and their collaborators have now demonstrated that proteins involved in ion transport in the inner chloroplast membrane participate in the regulation of gene expression in the organelle, therefore playing an important role in the control of photosynthesis.