AI Article Synopsis
- Lipid transporters, particularly FAX1 and ABCA9, significantly impact oil production and lipid metabolism in the oilseed crop Camelina sativa, a subject that has been underexplored.
- * Overexpressing FAX1 and ABCA9 resulted in larger and heavier seeds, with distinct effects on seed dimensions and oil content, showing that these transporters have complementary roles.
- * The study suggests that enhancing the expression of FAX1 and ABCA9 could be a promising strategy for boosting oil production in camelina crops.
Article Abstract
Background: Lipid transporters play an essential role in lipid delivery and distribution, but their influence on seed oil production in oilseed crops is not well studied.
Results: Here, 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.
Conclusion: These results indicate that increased expression of FAX1 and ABCA9 can potentially be applied to improving camelina oil production.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7913393 | PMC |
| http://dx.doi.org/10.1186/s13068-021-01899-w | DOI Listing |
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