Abstrato

Influence of UVC on Growth Behavior, Internal Structure, Enzymes and Free Radical of Nigella Sativa Plant

Abu Bakr El-Bediwi, Soad Hasanin, A. Abdelrazek and Hamed M El-Shora

The aim of this research is to study the effect of ultraviolet- C from UV lamp on growth stages, color, structure and absorption of Nigella sativa plant. The results show that structure (internal and molecular) which leaf growth of Nigella sativa plant changed and may be die after exposure to UVC for different times and dissimilar distances. Also activities of super oxide dismutase (SOD) and glutathione reductase (GR), phenol, flavonoid, Proline and GSH contents and phenyl alanine amonia lyase (PAL) in Nigella sativa increased but activity of ascorbic peroxidase (APX) decreased after exposure to UVC from different distances and different time intervals. DPPH free radicals and ABTS radical scavenging activities increased continuously with increasing exposure time.