In order to promote phenol tolerance and the carbon fixation rate of cells during CO₂ sequestration in coal chemical flue gas, γ-ray irradiation from cobalt-60 (⁶⁰Co) was used to mutate Arthrospira platensis to generate efficient strains. A phenol-tolerant strain Mutant 11k was obtained with 11,000 Gy of gamma irradiation. The phenol degradation efficiency of the mutant was 34.7 % higher than that of wild strain, attributing to the increased activity of phenol hydroxylase that catalyzed phenol to generate catechol. The catechol 1,2-dioxygenase activity in mutant cells was enhanced by 39.5 % while catechol 2,3-dioxygenase was weakened by 23.8 %, revealing that the β-ketoadipate pathway plays a more important role than 2-hydroxymuconic semialdehyde pathway in phenol degradation. The activity of superoxide dismutase and catalase increased by 6.1 % and 39.8 %, respectively, reducing peroxide damage and maintaining rapid cell growth. The contents of chlorophyll-a and maximum quantum yield of photosystem II in mutant cells were higher than those in wild strain. The biomass yield and carbon fixation rate of mutant were 20.8 % and 22.4 % higher, respectively, than those of the wild strain.

为了提高煤化学烟道气中CO ₂螯合过程中苯酚的耐受性和细胞的碳固定率，使用了钴60（⁶⁰ Co）的γ射线辐照突变了Arthrospira platensis产生有效的应变。在11,000 Gy的γ射线照射下获得了耐苯酚菌株Mantant 11k。该突变体的苯酚降解效率比野生菌株高34.7％，这归因于催化酚产生儿茶酚的酚羟化酶活性增加。突变细胞中的儿茶酚1,2-二加氧酶活性提高了39.5％，而儿茶酚2,3-二加氧酶的活性降低了23.8％，这表明在酚降解中，β-酮己二酸途径比2-羟基粘康半醛途径更重要。 。超氧化物歧化酶和过氧化氢酶的活性分别增加了6.1％和39.8％，从而减少了过氧化物的破坏并保持了细胞的快速生长。突变细胞中叶绿素a的含量和光系统II的最大量子产率均高于野生菌株。突变体的生物量产量和固碳率分别比野生菌株高20.8％和22.4％。