Manipulation of Plant Oil Composition for the Production of Valuable Chemicals

Murphy, Denis J.

doi:10.1007/978-1-4615-4729-7_3

Cited by 11 publications

(2 citation statements)

References 22 publications

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“…The first genetically engineered oilseed crop with modified seed oil, the high C12:0 Brassica , was grown commercially in Georgia, USA, as a winter crop in the 1995–1996 growing season by Calgene under the brand name Laurical (GEO‐PIE, 2004; Murphy, 1999). The seed oil of the Bay‐FatB transformed B. napus plants was similar to the composition of coconut and palm kernel oils in the level of SMCFA (Voelker et al, 1996), which are used in food products such as in chocolates, candy coatings, confections, nondairy creamers, low‐fat margarines, soaps, detergents, and cosmetics (GEO‐PIE, 2004).…”

Section: Conventional Breeding Approachesmentioning

confidence: 99%

Modification of Brassica Oil Using Conventional and Transgenic Approaches

2006

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Modifying the fatty acid composition of Brassica seed oil to increase its value as a nutritional or as an industrial oil has been a major objective in Brassica breeding programs worldwide. The conventional approach to fatty acid modification has explored natural or induced mutations occurring in the same plant species or close relatives within the Brassica genus. These mutations have been shown to be associated with a few enzymes in the biosynthetic pathway of the fatty acids. Several types of Brassica oil with significantly altered levels of the long chain fatty acid erucic acid (C22:1) and medium chain fatty acids such as oleic acid (C18:1) and linolenic acid (C18:3) have been developed for different end uses through conventional breeding. When the necessary genetic variation is not available within Brassica species, gene transfer by genetic transformation has been applied, as this approach is not restricted by the sexual incompatibility barrier across species. The fatty acids targeted by the transgenic approach included fatty acids with various carbon chain lengths ranging from C8 to C22, with different numbers of double bonds, and with various functional groups such as epoxy and hydroxy fatty acids. A commercial specialty oil with high level of a novel fatty acid, lauric acid (C12:0), was produced as a result of the transfer of a FatB thioesterase gene from a distantly related plant species that produces seed oil with high level of this unusual fatty acid. Considerable progress has been achieved in altering the relative levels of the fatty acids found in Brassica oils for increased health and economic benefits and in developing Brassica oils which contain other unusual fatty acids, mainly through genetic transformation. Although the use of natural or induced mutations in the fatty acid biosynthesis within Brassica remains a valid option for oil modification, the transgenic approach will play an increasingly important role in the development of Brassica oils with altered novel fatty acid composition.

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Section: Conventional Breeding Approachesmentioning

confidence: 99%

Modification of Brassica Oil Using Conventional and Transgenic Approaches

2006

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“…Exotic fatty acids including a very long chain PUFAs (VLCPUFAs), such as arachidonic (ARA), docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) have been shown to have important roles in human health. Currently, the primary dietary source of these fatty acids is from marine fish, microalgae, and microbes; however, the fact that fish populations are not a sustainable source and the high cost of microbial oil extraction have become reasons why there are now tremendous efforts being put into producing these exotic fatty acids in oil seed crops via transgenic approaches [74][75][76][77][78][79][80][81][82]. The substrates for VLCPUFA biosynthesis are linoleic acid (LA; 18:2, n-6) and α-linolenic acid (ALA; 18:3, n-3).…”

Section: Omics Studies Of Seed Oil Cropsmentioning

confidence: 99%

Review: Omics and Strategic Yield Improvement in Oil Crops

Teh

Neoh

Ithnin

et al. 2017

J Americ Oil Chem Soc

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Crop yield improvement is essential for feeding the growing world population without concomitant increases in land allocated to agriculture. Oil crops are critical components of food supply as well as non-food applications. Oil palm is of particular value due to its significantly higher yield per unit area of land as compared to other oil crops. In the context of sustainable production of edible oils, this review will discuss the role of biochemical-omics techniques, including metabolomics, transcriptomics and proteomics research for yield improvement through plant breeding; in particular, the unique challenges of the mesocarp-oil bearing perennial crop, oil palm, are specifically discussed along with perspectives on what is needed for future crop improvement. Future oil crop improvement will need to go beyond classical trait selection, and omics research needs to go beyond looking at oil biosynthesis and fruit development. We need to explore carbon supply and flux, plant stress response, nutrient uptake and water use through a combination of genetics, biochemistry, epigenetics and gene interaction coupled to more detailed and continuous phenotypic data analysis.

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Biosafety in Agricultural Biotechnology: Balancing Social and Environmental Impacts

Spillane¹,

Pinto²

Economy &Amp; Environment

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Manipulation of Plant Oil Composition for the Production of Valuable Chemicals

Cited by 11 publications

References 22 publications

Modification of Brassica Oil Using Conventional and Transgenic Approaches

Modification of Brassica Oil Using Conventional and Transgenic Approaches

Review: Omics and Strategic Yield Improvement in Oil Crops

Biosafety in Agricultural Biotechnology: Balancing Social and Environmental Impacts

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