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Indoles derivatives recovered from supernatants of Trichoderma strains incubated with (+) or without (−) 10 mM of L-Tryptophan. (A) Basal medium was MS. The standards used for identification of indole derivatives are indicated in the first 6 lanes. Samples incubated for 48 h with or without tryptophan are presented. (B) Basal medium was PDB. IAA was used as a standard in the first and last lane.
