CAJ | 학술논문

经γ射线辐照的大三岛脐橙胚状体和愈伤组织增强了耐寒性，表现为在低温下细胞活力明显提高，相对应的半致死温度分别为-4.8℃和-5.9℃，比未辐照处理的降低1.6℃和1.8℃；可溶性糖含量、游离脯氨酸含量、SOD和CAT活性都有不同程度的提高。
경γ사선복조적대삼도제등배상체화유상조직증강료내한성，표현위재저온하세포활력명현제고，상대응적반치사온도분별위-4.8℃화-5.9℃，비미복조처리적강저1.6℃화1.8℃；가용성당함량、유리포안산함량、SOD화CAT활성도유불동정 도적제고。
Exposure to gamma irratiation enhanced the cold tolerance of embryoid and callus in Omishima navel orange, and marked increase of the cell activity under lower temperature was shown. For embryoid and callus, the LT 50 were -4.8℃ and -5.9℃ respectively, 1.6℃ and 1.8℃ lower than those without irratiation respectively. At the same time, the content of soluble suga r , free proline, the activity of SOD and CAT were increased when treated by gamma irratiation.