氧化应激
非生物胁迫
生物量(生态学)
活性氧
非生物成分
生物
抗氧化剂
生物化学
生态学
基因
作者
Jiangyu Zhu,Yifei Cai,Minato Wakisaka,Zhengfei Yang,Yongqi Yin,Weiming Fang,Yan Xu,Taku Omura,Ruihui Yu,Alvin Lim Teik Zheng
标识
DOI:10.1016/j.scitotenv.2023.165200
摘要
Microalgae have been recognized as emerging cell factories due to the high value-added bio-products. However, the balance between algal growth and the accumulation of metabolites is always the main contradiction in algal biomass production. Hence, the security and effectiveness of regulating microalgal growth and metabolism simultaneously have drawn substantial attention. Since the correspondence between microalgal growth and reactive oxygen species (ROS) level has been confirmed, improving its growth under oxidative stress and promoting biomass accumulation under non-oxidative stress by exogenous mitigators is feasible. This paper first introduced ROS generation in microalgae and described the effects of different abiotic stresses on the physiological and biochemical status of microalgae from these aspects associated with growth, cell morphology and structure, and antioxidant system. Secondly, the role of exogenous mitigators with different mechanisms in alleviating abiotic stress was concluded. Finally, the possibility of exogenous antioxidants regulating microalgal growth and improving the accumulation of specific products under non-stress conditions was discussed.
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