Feedback regulation by trehalose 6-phosphate slows down starch mobilization below the rate that would exhaust starch reserves at dawn in Arabidopsis leaves.

As in the experiment of Figures 2 and 3 , compared to Col‐0, sweet11;12 showed a large and highly significant twofold increase in the percentage of the dusk starch content that remained at dawn (Supporting Information Figure S3 F).

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Compared to wild‐type plants, starch levels in sweet11;12 showed a trend to slightly higher levels at dusk (Supporting Information Figure S3 C, significant in control conditions) and a large increase at dawn (Supporting Information Figure S3 D, significant in all conditions).

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