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Enhanced fucoxanthin and biomass accumulation in Phaeodactylum tricornutum by combined effect of two plant hormones

文献类型： 外文期刊

作者： Lin, Jiaxue 1 ; Zhao, Shaogeng 1 ; Huang, Beichen 1 ; Yin, Jianhua 2 ; Li, Shengjie 1 ; Ma, Yan 1 ; Ye, Jingrun 1 ; Wang, Haiying 3 ; Ji, Xiaofeng 3 ; Xu, Jiakun 3 ; Wang, Zhipeng 1 ;

作者机构： 1.Qingdao Agr Univ, Sch Marine Sci & Engn, Qingdao 266109, Shandong, Peoples R China

2.West Coast Qingdao New Dist Agr & Rural Affairs Bu, Qingdao 266400, Shandong, 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; Eicosapentaenoic acid; Phaeodactylum tricornutum; Combined effect; Plant hormones

期刊名称：FOOD BIOSCIENCE （ 影响因子：4.8； 五年影响因子：5.1 ）

ISSN： 2212-4292

年卷期： 2024 年 61 卷

页码：

收录情况： SCI

摘要： Phaeodactylum tricornutum have garnered significant attention for its ability to accumulate fucoxanthin (Fx) and eicosapentaenoic acid. However, its limited biomass in autotrophic culture becomes a restrictive factor for the large-scale production of Fx. Herein, 6-benzylaminopurine and 5-aminolevulinic acid at 1.0 mg/L, were proved conducive for promoting the Fx and biomass accumulation. Under the combined effect of the two, Fx and peaked at 36.01 mg/L after 10 d of cultivation, at which point biomass was 1.50 g/L and Fx content was 24.01 mg/g. Meanwhile, EPA production was elevated to 22.73 mg/L. Such combined effect was also found in regulating the transcriptional levels of Fx biosynthesis-related genes by the two plant hormones. This study demonstrates that Fx and biomass can be enhanced easily and efficiently under the combined effect of these two plant hormones, enabling massive Fx production in the autotrophic system.

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