To our knowledge, no information exists on the effect of
exogenous GABA treatment on CI in anthurium cut
flowers. In this
work, the effects of pre and postharvest GABA treatment on the
spathe browning as CI symptoms, electrolyte leakage and MDA
content as membrane integrity indicators, PAL and PPO activities
associated with total phenols content, proline content and DPPH
scavenging capacity of anthurium cut
flowers were evaluated. We
propose that maintenance of membrane integrity associated with
enhanced total antioxidant capacity and proline accumulation, and
reduced PPO enzyme activity coinciding with increasing PAL
enzyme activity leading to total phenolic accumulation, is
proposed as possible mechanism for the mitigation impact of
exogenous GABA on CI of cut
flowers.