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用６０Ｃｏγ－射线照射不同品系和形态的螺旋藻丝状体、结果表明：①低剂量可刺激生长，使盐泽螺旋藻（Ｓｓ）和钝顶螺旋藻（Ｓｐ）分别增产２６％和４％～１０％；②４种螺旋藻虽然都具有很强的抗辐射能力，但它们的辐射敏感性又因品系和形态的不同而存在显著差异：长直形的Ｓｐ－Ｌ＞长直形和弯曲形混合的Ｓｐ－Ｄ＞弯曲形的Ｓｐ－１＞Ｓｓ－Ｖ，在Ｓｐ－Ｄ中，长直形的藻丝体＞弯曲形的藻丝体；③螺旋藻在对辐射损伤进行修复的过程中，分裂繁殖能力明显下降，当藻丝体受到严重损伤且不可修复时，就会断裂变短，甚至解体；④得到了细胞宽大、低温下能良好生长的突变体．
The results showed that: (1) low dose stimulated growth, the yield of Spirulina (Ss) and Spirulina (Sp) increased by 26% and 4% ~ 10%, respectively. (4) Spirulina also possessed significant anti-radiation ability, but their radiosensitivity was significantly different due to different strains and morphologies: long-straight Sp-L> long straight and curved Sp-D> Sp-1> Sp-1> Ss-V. In Sp-D, the long straight filamentous filament> the curved filamentous filaments; ③ Spirulina in the process of repairing radiation damage, The ability of division and reproduction decreased obviously. When the algal filaments were severely damaged and could not be repaired, the rupture became shorter and even disintegrated. ④The mutant with good cell growth and low temperature was obtained.