水生生物学报2018，Vol.42Issue(2)：421-427,7.DOI:10.7541/2018.054
褪黑素对单针藻油脂积累的影响
EFFECTS OF MELATONIN ON LIPID ACCUMULATION OF MONORAPHIDIUM SP.QLY-1
摘要
Abstract
The combination of plant hormones with photo-induction can effectively promote the lipids accumulation in microalgae, which are potential candidates for the production of renewable biodiesel. This study investigated the ef-fects of exogenous melatonin on the biomass and lipid biosynthesis in Monoraphidium sp.The results showed that compared with the control group (37.6%), the lipid contents of microalgae increased by 1.32, 1.24 and 1.16-fold by 1, 10 and 100 μmol/L melatonin treatment and photo-induction respectively, and the maximum lipid content was 49.6%. Moreover, the ROS and lipid biosynthesis-related enzyme activities were correlated with the increased lipid accumula-tion. Melatonin at 1μmol increased the levels of ROS, ACCase, and ME activities and significantly reduced PEPCase activity. These results showed that MT as an exogenous elicitor can effectively enhance the lipid accumulation in mi-croalgae, and that the combination of MT and photo-induction is an efficient strategy to promote the lipid accumulation.关键词
Monoraphidiumsp.QLY-1/光诱导培养/褪黑素/油脂含量Key words
Monoraphidium sp./Induction/Melatonin/Lipid content分类
农业科技引用本文复制引用
李大菲,赵永腾,余旭亚..褪黑素对单针藻油脂积累的影响[J].水生生物学报,2018,42(2):421-427,7.基金项目
国家自然科学基金(21766012)资助[Supported by the National Natural Science Foundation of China(21766012)] （21766012）
