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The synergistic effect of EDTA-Fe and 1-naphthaleneacetic acid on the growth and carbohydrate content of Scenedesmus obliquus

文献类型： 外文期刊

作者： Cai, WenHu 1 ; Gao, Yishan 1 ; Liu, Hengwei 2 ; Zhang, HaiGeng 3 ; Zhou, Xuefei 1 ; Zhang, Yalei 1 ; Shen, Zheng 1 ;

作者机构： 1.Tongji Univ, Natl Engn Res Ctr Protected Agr, Shanghai Engn Res Ctr Protected Agr, State Key Lab Pollut Control & Resources Reuse,Key, Shanghai 200092, Peoples R China

2.Suzhou Univ Sci & Technol, Sch Chem & Biol Engn, Suzhou, Peoples R China

3.Chinese Acad Fisheries Sci, Fishery Machinery & Instrument Res Inst, Shanghai 200092, Peoples R China

4.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China

关键词： Carbohydrate; EDTA-Fe; 1-naphthaleneacetic acid; Scenedesmus obliquus; Transcriptomics

期刊名称：ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS （ 影响因子：5.1； 五年影响因子：5.5 ）

ISSN： 2211-9264

年卷期： 2023 年 69 卷

页码：

收录情况： SCI

摘要： In this study, the phytohormones 1-naphthaleneacetic acid (NAA) was used in conjunction with EDTA-Fe to increase the biomass and carbohydrate content of Scenedesmus obliquus. It was found that after the addition of 20 mg center dot L-1 NAA and 2 x 10(-5) mol center dot L-1 EDTA-Fe, the biomass of S. obliquus is up to 3.32 g center dot L-1 which is significantly higher than 1.85 g center dot L-1 of the control group, and the carbohydrate content of S. obliquus is up to 46.03 % which is significantly higher than 33.02 % of the control group. Transcriptome analysis of S. obliquus cell samples showed that glucose phosphate convertase in the glycolytic pathway was promoted when S. obliquus cells underwent carbohydrate metabolism, providing more glucose 1-phosphate as a raw material for starch production. On the other hand, in the experimental group with NAA addition, not only starch synthase was increased, for making the promotion of starch elongation and synthesis, but also the activity of starch hydrolase was increased, for making a faster rate of hydrolysis energy and ultimately to a faster growth rate of S. obliquus cells.

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