Increased expression of fatty acid and ABC transporters enhances seed oil production in camelina

文献类型： 外文期刊

第一作者： Cai, Guangqin

作者： Cai, Guangqin;Cai, Guangqin;Zhou, Yongming;Cai, Guangqin;Wang, Geliang;Kim, Sang-Chul;Li, Jianwu;Wang, Xuemin;Cai, Guangqin;Wang, Geliang;Kim, Sang-Chul;Li, Jianwu;Wang, Xuemin

作者机构：

关键词： Camelina; Lipid metabolism; Oil production; Seed weight; Transporters

期刊名称：BIOTECHNOLOGY FOR BIOFUELS （ 影响因子：6.04； 五年影响因子：6.485 ）

ISSN：

年卷期： 2021 年 14 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundLipid transporters play an essential role in lipid delivery and distribution, but their influence on seed oil production in oilseed crops is not well studied.ResultsHere, we examined the effect of two lipid transporters, FAX1 (fatty acid export1) and ABCA9 (ATP-binding cassette transporter subfamily A9) on oil production and lipid metabolism in the oilseed plant Camelina sativa. Overexpression (OE) of FAX1 and ABCA9 increased seed weight and size, with FAX1-OEs and ABCA9-OEs increasing seed length and width, respectively, whereas FAX1/ABCA9-OEs increasing both. FAX1-OE and ABCA9-OE displayed additive effects on seed oil content and seed yield. Also, OE of FAX1 and ABCA9 affected membrane lipid composition in developing pods, especially on phosphatidylcholine, phosphatidylethanolamine, and phosphatidylglycerol. The expression of some genes involved in seed oil synthesis, such as DGAT2, PDAT1, and LEC1, was increased in developing seeds of FAX1- and/or ABCA9-OEs.ConclusionThese results indicate that increased expression of FAX1 and ABCA9 can potentially be applied to improving camelina oil production.

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