温度对裂殖壶菌S31中FAS及PKS基因转录水平的影响

发布时间：2018-04-17 18:05

  本文选题：裂殖壶菌 + DHA　； 参考：《中国油脂》2017年08期

【摘要】：以甘油为碳源,测定了摇瓶中裂殖壶菌S31进入脂质积累期后,温度对胞内油脂脂肪酸组成以及FAS和PKS基因转录水平的影响。结果表明:当裂殖壶菌进入脂质积累阶段后,提高发酵温度到30℃会减少藻油中DHA的含量,FAS基因的转录水平比PKS基因的更高;同时,降低发酵温度到20℃会提高裂殖壶菌S31藻油DHA的含量,PKS基因的转录水平显著高于FAS基因的。实验结果表明,温度对PKS和FAS基因的转录水平有显著的影响,从而决定裂殖壶菌S31中藻油脂肪酸组成的变化。
[Abstract]:Using glycerol as carbon source, the effects of temperature on the fatty acid composition of intracellular lipid and the transcription level of FAS and PKS genes were measured after S31 entered the lipid accumulation period in shaking flask.The results showed that when merozoites entered the stage of lipid accumulation, increasing fermentation temperature to 30 鈩，

本文编号：1764680