The tps5, tps10 and tps11 class II trehalose phosphate synthase mutants alter carbon allocation to starch and organic and amino acids at two different photoperiods in Arabidopsis.

Most tpsII mutants accumulated significantly higher levels of Leu, Val and Ala during the short- and long-days, except for the slightly significant reduction, with respect to WT controls, of Ala in the tps5-1 mutant and of the three amino acids in the tps11-2 mutant at the end of the short night (Figs. 4 b, 4d and 4f).

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