3.2. Electrolyte leakage and MDA content
Electrolyte leakage of the anthurium cut
flowers spathe stored
at 4 C increased during the 21 days of storage (Table 2). The
electrolyte leakage of anthurium cut
flowers spathe treated with
1 and 5 mM GABA at pre or postharvest stage, respectively,
remained lower than that in untreated control
flowers (P < 0.01;
Tables 2 and 4,). Also, during storage at 4 C, the MDA content in the
anthurium cut
flowers spathe increased (Table 2). Compared to the
controls, a lower content of MDA was found in the spathe of
flowers
treated with 1 and 5 mM GABA at pre or postharvest stage,
respectively, (P < 0.01; Tables 2 and 4).
3.3. Proline content
The proline content in the anthurium cut
flowers spathe
increased during storage at 4 C. GABA treatment with 1 and 5 mM
GABA at pre or postharvest stage, respectively, enhanced the
increase in proline (P < 0.01; Tables 2 and 4).
3.4. Total phenols content and activities of PAL and PPO
The content of total phenols in the anthurium cut
flowers
spathe treated with postharvest GABA at 5 mM and without GABA
treatment showed an increase during the storage at 4 C (Table 3).
Postharvest 5 mM GABA treated anthurium cut
flowers spathe
displayed a faster rate in the accumulation of total phenols than
control
flowers (P < 0.05; Table 3). The content of total phenols in
the anthurium cut
flowers spathe treated with preharvest GABA at
1 mM and without GABA treatment continually increased then