The scavenging of H2O2 is considered to be essential for root growth.Therefore, active cell division within the meristem zone of the root may cause theproduction of H2O2 accompanied by O2 uptake in mitochondria, and APX mayoperate in the cytosol of root cells (Morimura et al., 1999). They suggested thatexposure of Japanese radish roots to fluorescent light positively affected APXgene expression than cotyledons coincided with APX protein levels. Presumably,fluorescent light induced the APX enzymes activities and thus loweraccumulation of H2O2 facilitated the adventitious root induction process in ourstudy.The increase in MDA content was observed in Toyonoka strawberry incallus phase under different color plastic films and decreased gradually thereafterwith decreasing calli formation (Yonghua et al., 2005). They concluded that theincrease peroxidation of lipids and lower exchange of gases and physiologicalprocess when pressure exerted on explants during callus phase. On the contrary,peroxidation of membrane lipids occurs when ROS reacts with unsaturated fattyacids leading to leakage of cellular contents. The harmful effect of ROS is dueprimarily to their ability to initiate a variety of autoxidative chain reactions onunsaturated fatty acids (Smirnoff, 2000). This might be the reasons of higheraccumulation of H2O2 under far-red light, and/or profound calli formation underred + blue, red and blue light to stimulate lipid peroxidation that leads tosản xuất nội dung MDA. Độc hại MDA tích lũy gây ra thương tích di độngkết quả bắt giữ quá trình cảm ứng dưới far-red, đỏ + màu xanh, màu đỏ và màu xanh ánh sáng,tương ứng, trong khi thấp oxy hóa thiệt hại dưới ánh sáng trắng tạo điều kiện cho cáccảm ứng các quá trình trong nghiên cứu của chúng tôi.
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