Abstract:
Aglaonema simplex are among popular ornamental plants which are suitable for
household and office decoration. They are highly adapted to light intensity, resistant
to pest and not much effort needed to grow this kind of species. The effects of NaCl
treatment on the specific activities ascorbate peroxidase (APX), catalase (CAT) and
guaiacol peroxidase (POD) were investigated in Aglaonema simplex cultures. The A.
simplex plantlets were treated with 0, 25, 50 or 1 OOmM of NaCl in Murashige and
Skoog solid medium for 28 days. The activities of these antioxidative enzymes were
detected at 0, 1, 2, 7, 14 and 28 days of treatment periods. Generally, APX, CAT and
POD exhibited similar pattern in response to NaCl treatment. No significant
differences (P>0.05) were observed in APX, CAT and POD specific activities were
observed up to 7 days of treatment periods. After 7 days, the specific activities of all
enzymes markedly increased (P<0.05) to a maximum activities. Specific activities of
each enzymes decreased significantly at the later stage of treatment periods. Above
result revealed that NaCl treatment induced by oxidative stress in A. simplex cultures
inducing the APX, CAT and POD specific activities.
