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Acyl-Trafficking During Plant Oil Accumulation

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Lipids

Abstract

Vegetable oils are an extremely important agricultural commodity. Their use has risen inexorably for the last 50 years and will undoubtedly be even more prevalent in the future. They have a role not only in foodstuffs but also as renewable chemicals. However, our understanding of their metabolism, and particularly its control, is incomplete. In this article we highlight current knowledge and its deficiencies. In particular, we focus on the important role that phosphatidylcholine plays in lipid accumulation and in influencing the quality of the vegetable oils produced.

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Abbreviations

ACCase:

Acetyl-CoA carboxylase

ACP:

Acyl carrier protein

CDP-choline:

Cytidine diphosphate-choline

CPT:

Cholinephosphotransferase

DAG:

Diacylglycerol

DGAT:

Diacylglycerol acyltransferase

ER:

Endoplasmic reticulum

FAD:

Fatty acid desaturase

FAS:

Fatty acid synthase

FAT:

Fatty acyl-ACP thioesterase

FAX1:

Fatty acid export 1

G3P:

sn-Glycerol 3-phosphate

GPAT:

Glycerol 3-phosphate acyltransferase

GPC:

Glycerophosphocholine

GPCAT:

Glycerophosphocholine acyltransferase

KAS:

β-Ketoacyl-ACP synthase

LACS:

Long-chain acyl-CoA synthetase

LPA:

Lysophosphatidic acid

LPAAT:

Lysophosphatidate acyltransferase

LPC:

Lysophosphatidylcholine

LPCAT:

Lysophosphatidylcholine acyltransferase

LPCT:

Lysophosphatidylcholine transacylase

MGDG:

Monogalactosyldiacylglycerol

NAD(P)H:

Nicotinamide adenine dinucleotide (phosphate)

NEFA:

Nonesterified fatty acid (free fatty acid)

PA:

Phosphatidic acid (PtdOH)

PAPase:

Phosphatidate phosphohydrolase

PDAT:

Phospholipid:diacylglycerol acyltransferase

PDCT:

Phosphatidylcholine:diacylglycerol cholinephosphotransferase

PLA:

Phospholipase A

PLC:

Phospholipase C

PLD:

Phospholipase D

PtdCho:

Phosphatidylcholine

PtdGro:

Phosphatidylglycerol

PtdIns:

Phosphatidylinositol

PUFA:

Polyunsaturated fatty acid

ROD1:

Reduced oleate desaturation 1

TAG:

Triacylglycerol

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Acknowledgments

R.J.W. is grateful for the support of Alberta Innovates Bio Solutions, the Canada Research Chairs Program, and the Natural Sciences and Engineering Research Council of Canada. J.L.H. thanks the Biotechnology and Biological Sciences Research Council (UK).

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Author notes

  1. Guanqun Chen

    Present address: Department of Biological Sciences, University of Manitoba, 50 Sifton Rd, Winnipeg, Manitoba, R3T 2N2, Canada

Authors and Affiliations

  1. Alberta Innovates Phytola Centre, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, T6G 2P5, Canada

    Guanqun Chen, Xue Pan & Randall J. Weselake

  2. School of Biosciences, Cardiff University, The Sir Martin Evans Building, Cardiff, CF10 3AX, Wales, UK

    Helen K. Woodfield & John L. Harwood

Authors
  1. Guanqun Chen
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  2. Helen K. Woodfield
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  3. Xue Pan
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  4. John L. Harwood
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  5. Randall J. Weselake
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Corresponding authors

Correspondence to John L. Harwood or Randall J. Weselake.

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Chen, G., Woodfield, H.K., Pan, X. et al. Acyl-Trafficking During Plant Oil Accumulation. Lipids 50, 1057–1068 (2015). https://doi.org/10.1007/s11745-015-4069-x

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  • DOI: https://doi.org/10.1007/s11745-015-4069-x

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