Figure 6.

Ester production in both transient and stable CHS-silenced fruits. Relative concentrations of esters in CHSi agroinfiltrated fruits (A; strawberry ‘Elsanta’) and a stable transgenic CHS antisense (CHS antis.) line (B; strawberry ‘Calypso’). Metabolite levels were determined by GC-MS 14 d after infiltration with A. tumefaciens transformed with a construct encoding CHS-inverted hairpin RNA or with pBI-Intron. Metabolite levels in fruits of the CHS antisense line and wild-type strawberry ‘Calypso’ fruits were determined at the mature ripening stage (n = 5–7). Identity of the compounds was confirmed by authentic references. Relative concentration (rel. conc.) is expressed in in milligram equivalent internal standard kg^–1.