Laminaria japonica hydrolysate promotes fucoxanthin accumulation in Phaeodactylum tricornutum
文献类型： 外文期刊
作者： Wang, Zhi-Peng 1 ; Wang, Pei-Kang 1 ; Ma, Yan 1 ; Lin, Jia-Xue 1 ; Wang, Cheng-Long 1 ; Zhao, Yu-Xiang 1 ; Zhang, Xin-Yue 1 ; Huang, Bei-Chen 1 ; Zhao, Shou-Geng 1 ; Gao, Lei 1 ; Jiang, Jing 2 ; Wang, Hai-Ying 3 ; Chen, Wei 1 ;
作者机构： 1.Qingdao Agr Univ, Sch Marine Sci & Engn, Qingdao 266109, Shandong, Peoples R China
2.Suzhou Univ Sci & Technol, Sch Environm Sci & Engn, Suzhou 215009, Jiangsu, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Polar Fishery, Minist Agr & Rural Affairs, Qingdao 266071, Peoples R China
关键词： Fucoxanthin; Phaeodactylum tricornutum; Autotrophic culture; Laminaria japonica; Plant hormones
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：11.889； 五年影响因子：11.139 ）
ISSN： 0960-8524
年卷期： 2022 年 344 卷
页码：
收录情况： SCI
摘要： Fucoxanthin (Fx) has gained a growing attention due to the remarkable biological activities. The limited biomass of was the restrictive factor for Fx production in Phaeodactylum tricornutum. In this study, Laminaria japonica hydrolysate (LPH) with a low addition proportion of 1.5 ml/L, was proved to promote fucoxanthin accumulation and cell growth simultaneously. Fx topped at 27.9 mg/L after 10-d cultivation in the LPH group, with a biomass of 1.59 g/L and a Fx content of 17.55 mg/g. Three key plant hormones in LPH were screened responsible for promoting fucoxanthin accumulation. Transcriptomic analysis and qRT-PCR results showed that genes related to Fx formation were generally up-regulated. The study demonstrated that LPH addition was a feasible and efficient strategy to enhance production of fucoxanthin, facilitating the scale-up production of Fx in autotrophic culture.
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