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Furfural increased expression of most genes concerned with sulfur assimilation into cysteine and methionine. Pathways for the synthesis of threonine and isoleucine from aspartate are included for comparison. Genes upregulated by 1.5-fold or greater are shown in red. Genes downregulated by 1.5-fold or greater are shown in green (negative sign assigned). All others are shown in black.
