摘要
条斑紫菜(Porphyra yezoensis)原生质体被紫外线照射后,其后代的发育、形态和色彩均发生较大的变异。低剂量辐射对原生质体后代的发育和生长有促进作用,高剂量辐射对原生质体后代发育有抑制作用。原生质体经秋水仙碱和紫外线混合处理后,后代生长加快更加显著。同时产生较多的形态和色彩变异体。经秋水仙碱处理后的原生质体及其后代对紫外线辐射有较强的抗性,这种抗性随着秋水仙碱的浓度增高而增加。
The inflict casualties of UV-irradiation to the isolated protoplasts from thalli ofPorphyra yezoensis were very serious, and UV-irradiation brought some variations in themorphogenitic pattens, developments and color of protoplast-progenies. The material treatedwith low doses, the development and growth of their progenies were promoted, but the higherdoses, the results were opposite. If the protoplasts were treated by colchicine and UV-irradiationtogether, the growth rates of their progenies increased significantly. The higher frequence of purered variants and the abnormal buds in the progenies were obtained. The UV-irradiation resistancewere obvious in the protoplastes and progenies which was treated by colchicine, and the higherconcentrition of colchicine is, the resistance higher is
出处
《上海水产大学学报》
CSCD
1992年第1期71-78,共8页
Journal of Shanghai Fisheries University
基金
亚洲水产学会(AFS)
加拿大国际发展研究中心(IDRC)~~
