Laminaria japonica hydrolysate promotes fucoxanthin accumulation in Phaeodactylum tricornutum

文献类型： 外文期刊

第一作者： Wang, Zhi-Peng

作者： Wang, Zhi-Peng;Wang, Pei-Kang;Ma, Yan;Lin, Jia-Xue;Wang, Cheng-Long;Zhao, Yu-Xiang;Zhang, Xin-Yue;Huang, Bei-Chen;Zhao, Shou-Geng;Gao, Lei;Chen, Wei;Jiang, Jing;Wang, Hai-Ying

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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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