Metabolites detected by MO-NMR following the addition, at time zero, of 3 mM benzoate (A and B) or 3 mM benzoate and 3 mM p-hydroxybenzoate (A and C) to deuterated cultures of ISA36 or ACN9. Concentrations of benzoate (ben), p-hydroxybenzoate (pob), catechol (cat), and cis,cis-muconate (ccm) were calculated by integration of NMR spectral peaks.