| DOI | Resolve DOI: https://doi.org/10.1002/lipd.12229 |
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| Author | Search for: Wang, Liping1; Search for: Li, Qiang1; Search for: Xia, Qun1; Search for: Shen, Wenyun1; Search for: Selvaraj, Gopalan1; Search for: Zou, Jitao1 |
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| Affiliation | - National Research Council of Canada. Aquatic and Crop Resource Development
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| Format | Text, Article |
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| Subject | diacylglycerol acyltransferase; membrane structure; phosphatidylcholine; storage lipid |
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| Abstract | Studies on the model plant Arabidopsis thaliana have uncovered the identities of most enzymatic components involved in seed storage lipid biosynthesis. However, much remains to be learned on how pathway interactions operate in the seed metabolic network. In this study, we dissected seed glycerolipid molecular compositional changes in the Arabidopsis mutant deficient in diacylglycerol acyltransferase 1 (DGAT1). Our results indicate that metabolic adjustments occurred in both phosphatidylcholine synthesis and deacylation in developing seeds. Ultrastructural changes of perturbed oil and protein bodies were also evident in cotyledon parenchyma cells. To unmask the physiological and developmental role associated with DGAT1‐mediated neutral lipid biosynthesis, we attempted to combine dgat1 mutation with lpcat2 that harbors a defect in lysophosphatidylcholine acyltransferase 2 (LPCAT2). Disruption in both DGAT1 and LPCAT2 led to an apparent defect in pollen development that manifested as pollen sterility. Collectively, our results highlight a role of DGAT1 in both storage lipid synthesis and plant development. |
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| Publication date | 2020-02-27 |
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| Publisher | Wiley
American Oil Chemists' Society (AOCS) |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 8cd17afa-730f-4ba2-9e96-4777f3d0f30a |
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| Record created | 2020-10-28 |
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| Record modified | 2020-11-04 |
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