[Objective] This study aimed to investigate the mutagenic effect of cobalt- 60 irradiation on potato. [Method] Potato tubers of Favorita and Zhongshu No.3 were irradiated with 5, 10, 20, 30, 50 and 70 Gy of cobalt-60 ...[Objective] This study aimed to investigate the mutagenic effect of cobalt- 60 irradiation on potato. [Method] Potato tubers of Favorita and Zhongshu No.3 were irradiated with 5, 10, 20, 30, 50 and 70 Gy of cobalt-60 γ-ray respectively, to explore the mutagenic effect of different doses of γ-ray heavy ion irradiation on potato. [Result] The results showed that the emergence rate, seedling rate, plant growth, yield and commodity of potato varied after irradiated with different doses of cobalt-60 γ-ray; 10Gy of cobalt-60 irradiation played a positive effect on the growth and development of potato, while high doses played a negative effect on the growth and development of potato. After cobalt-60 irradiation, the botanical traits of M1 gen- eration varied greatly, resulting in a number of beneficial mutation traits; some traits of M2 and M3 generations became stably inherited. [Conclusion] Cobalt-60 irradiation breeding is conducive to the variety improvement and germplasm innovation as an effective means of genetic improvement for potato.展开更多
目的探讨不同剂量^(60)Co-γ射线辐照灭菌对蜈蚣药粉8种核苷类成分含量及微生物指标的影响。方法分别以4,6,8,10 k Gy的^(60)Co-γ射线对样品进行动态辐照灭菌操作,按2015年版《中国药典(一部)》要求检测灭菌前后样品的水分、总灰分、...目的探讨不同剂量^(60)Co-γ射线辐照灭菌对蜈蚣药粉8种核苷类成分含量及微生物指标的影响。方法分别以4,6,8,10 k Gy的^(60)Co-γ射线对样品进行动态辐照灭菌操作,按2015年版《中国药典(一部)》要求检测灭菌前后样品的水分、总灰分、酸不溶性灰分、酸溶性浸出物、重金属及有害元素、黄曲霉毒素及微生物限度;采用高效液相色谱法测定4,6,8,10 k Gy^(60)Co-γ射线辐照灭菌后样品的化学成分含量。结果4,6,8,10 kGy^(60)Co-γ射线辐照灭菌样品的水分、总灰分、酸不溶性灰分、酸溶性浸出物、重金属及有害元素、黄曲霉毒素比较,差异均无统计学意义(P>0.05);大于6 kGy^(60)Co-γ射线辐照灭菌样品中,需氧菌、酵母菌、霉菌总数均随辐照剂量增加而减少,耐胆盐革兰阴性菌均小于10 cfu/g,微生物限度均符合2015年版《中国药典(四部)》规定,且均未检出大肠埃希菌和沙门菌;综合工业生产中的灭菌成本问题,8,10 kGy^(60)Co-γ射线动态辐照灭菌效果最佳;灭菌前后,胞嘧啶、胞苷、次黄嘌呤、黄嘌呤、尿苷、胸腺嘧啶、2’-脱氧肌苷、胸苷8种核苷类成分含量比较,差异均无统计学意义(P>0.05)。结论^(60)Co-γ射线辐照灭菌对蜈蚣药粉质量无明显影响,且8~10 kGy辐照灭菌效果最佳。展开更多
基金Supported by Youth Fund of President of Anhui Academy of Agricultural Sciences (11B0324)~~
文摘[Objective] This study aimed to investigate the mutagenic effect of cobalt- 60 irradiation on potato. [Method] Potato tubers of Favorita and Zhongshu No.3 were irradiated with 5, 10, 20, 30, 50 and 70 Gy of cobalt-60 γ-ray respectively, to explore the mutagenic effect of different doses of γ-ray heavy ion irradiation on potato. [Result] The results showed that the emergence rate, seedling rate, plant growth, yield and commodity of potato varied after irradiated with different doses of cobalt-60 γ-ray; 10Gy of cobalt-60 irradiation played a positive effect on the growth and development of potato, while high doses played a negative effect on the growth and development of potato. After cobalt-60 irradiation, the botanical traits of M1 gen- eration varied greatly, resulting in a number of beneficial mutation traits; some traits of M2 and M3 generations became stably inherited. [Conclusion] Cobalt-60 irradiation breeding is conducive to the variety improvement and germplasm innovation as an effective means of genetic improvement for potato.
文摘目的探讨不同剂量^(60)Co-γ射线辐照灭菌对蜈蚣药粉8种核苷类成分含量及微生物指标的影响。方法分别以4,6,8,10 k Gy的^(60)Co-γ射线对样品进行动态辐照灭菌操作,按2015年版《中国药典(一部)》要求检测灭菌前后样品的水分、总灰分、酸不溶性灰分、酸溶性浸出物、重金属及有害元素、黄曲霉毒素及微生物限度;采用高效液相色谱法测定4,6,8,10 k Gy^(60)Co-γ射线辐照灭菌后样品的化学成分含量。结果4,6,8,10 kGy^(60)Co-γ射线辐照灭菌样品的水分、总灰分、酸不溶性灰分、酸溶性浸出物、重金属及有害元素、黄曲霉毒素比较,差异均无统计学意义(P>0.05);大于6 kGy^(60)Co-γ射线辐照灭菌样品中,需氧菌、酵母菌、霉菌总数均随辐照剂量增加而减少,耐胆盐革兰阴性菌均小于10 cfu/g,微生物限度均符合2015年版《中国药典(四部)》规定,且均未检出大肠埃希菌和沙门菌;综合工业生产中的灭菌成本问题,8,10 kGy^(60)Co-γ射线动态辐照灭菌效果最佳;灭菌前后,胞嘧啶、胞苷、次黄嘌呤、黄嘌呤、尿苷、胸腺嘧啶、2’-脱氧肌苷、胸苷8种核苷类成分含量比较,差异均无统计学意义(P>0.05)。结论^(60)Co-γ射线辐照灭菌对蜈蚣药粉质量无明显影响,且8~10 kGy辐照灭菌效果最佳。