Production of γ-Linolenic Acid and Stearidonic Acid in Seeds of Marker-Free Transgenic Soybean

Crop Science ◽  
2004 ◽  
Vol 44 (2) ◽  
pp. 646 ◽  
Author(s):  
Shirley Sato ◽  
Aiqiu Xing ◽  
Xingguo Ye ◽  
Bruce Schweiger ◽  
Anthony Kinney ◽  
...  
Keyword(s):  
Linolenic Acid ◽  
Stearidonic Acid ◽  
Transgenic Soybean ◽  
Marker Free

Production of γ‐Linolenic Acid and Stearidonic Acid in Seeds of Marker‐Free Transgenic Soybean 1

Crop Science ◽  
2004 ◽  
Vol 44 (2) ◽  
pp. 646-652 ◽  
Author(s):  
Shirley Sato ◽  
Aiqiu Xing ◽  
Xingguo Ye ◽  
Bruce Schweiger ◽  
Anthony Kinney ◽  
...  
Keyword(s):  
Linolenic Acid ◽  
Stearidonic Acid ◽  
Transgenic Soybean ◽  
Marker Free

scholarly journals High accumulation of γ-linolenic acid and Stearidonic acid in transgenic Perilla (Perilla frutescens var. frutescens) seeds

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Kyeong-Ryeol Lee ◽  
Kyung-Hwan Kim ◽  
Jung Bong Kim ◽  
Seung-Bum Hong ◽  
Inhwa Jeon ◽  
...  
Keyword(s):  
Linolenic Acid ◽  
Stearidonic Acid ◽  
Perilla Frutescens ◽  
High Accumulation

scholarly journals Polyunsaturated fatty acids modulate prostaglandin synthesis by ovine amnion cells in vitro

Reproduction ◽  
2010 ◽  
Vol 140 (6) ◽  
pp. 943-951 ◽  
Author(s):  
S E Kirkup ◽  
Z Cheng ◽  
M Elmes ◽  
D C Wathes ◽  
D R E Abayasekara
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Linolenic Acid ◽  
Stearidonic Acid ◽  
Prostaglandin Synthesis ◽  
Late Gestation ◽  
Prostaglandin E ◽  
Pufa Supplementation ◽  
Pufa Composition

Diets or supplements high in n-3 and n-6 polyunsaturated fatty acids (PUFAs) have been shown to influence the timing of parturition. PUFAs are substrates for prostaglandin (PG) synthesis, and PGs play central roles in parturition. Hence, the effects of altering PUFA composition may be mediated through alterations in the type and relative quantities of PGs synthesised. Therefore, we have investigated the effects of a range of n-3 and n-6 PUFAsin vitroon PG synthesis by amnion cells of late gestation ewes. The n-6 PUFA, arachidonic acid (20:4, n-6), increased synthesis of two-series PGs. Degree of stimulation induced by the n-6 PUFAs was dependent on the position of the PUFA in the PG synthetic pathway, i.e. PG production of the two-series (principally prostaglandin E2:PGE2) increased progressively with longer chain PUFAs. Effects of n-3 PUFAs on output of PGE2were more modest and variable. The two shorter chain n-3 PUFAs, α-linolenic acid (18:3, n-3) and stearidonic acid (18:4, n-3), induced a small but significant increase in PGE2output, while the longest chain n-3 PUFA docosahexaenoic acid (22:6, n-3) inhibited PGE2synthesis. Dihomo-γ-linolenic acid (20:3, n-6), the PUFA substrate for synthesis of one-series PGs, induced an increase in PGE1generation and a decrease in PGE2and PGE3outputs. Hence, we have demonstrated that PUFA supplementation of ovine amnion cellsin vitroaffects the type and quantity of PGs synthesised.

scholarly journals Changes in the content of gamma-linolenic C18:3 (n-6) and stearidonic C18:4 (n-3) acids in developing seeds of viper's bugloss Echium vulgare L.

2007 ◽  
Vol 54 (4) ◽  
pp. 741-746 ◽  
Author(s):  
Andrzej Stolyhwo ◽  
Jolanta Mol
Keyword(s):  
Fatty Acids ◽  
Linolenic Acid ◽  
Seed Oil ◽  
Family Members ◽  
Stearidonic Acid ◽  
Alpha Linolenic Acid ◽  
Developing Seeds ◽  
Competitive Action

Changes in the composition of fatty acids (FA) were determined in lipid extracts isolated from developing ovaries containing ovules and developing seeds of Echium vulgare L. The samples were collected successively over 20 days beginning with the first day after flowering. The contents of the n-6 FA family members, i.e., gamma-linolenic (GLA) (C(18:3)) and linoleic (LA) (C(18:2)) acids changed in a parallel manner and reached the maximum of 13.9% and 24%, respectively, on the 12th day, after which they fell systematically down to 8.6% and 18.2%, respectively, on the 20th day after flowering. Starting with day 13, the content of alpha-linolenic acid (ALA) (C(18:3) n-3) begins to grow intensively, from 24.2% to 39.3% on the 20th day after flowering. The increase in the content of stearidonic acid (SDA) (C(18:4) n-3), up to 10.5% on the 20th day after flowering, occurred steadily as the seeds developed, and was independent of the changes in the content of GLA and LA. The pattern of changes in the content of SDA, GLA, LA and ALA during the development of seeds, and the occurrence of SDA in the seed oil of other plants, demonstrate that the biosynthesis of SDA in the seeds is critically dependent on the presence of ALA. The above condition indicates that SDA biosynthesis in the seeds of Echium vulgare follows the scheme LA --> simultaneous, competitive, action of Delta(6) and Delta(15) desaturases, leading to the formation of GLA and ALA, respectively, and then ALA (Delta(6) des) --> SDA. The biosynthesis according to the scheme: GLA (Delta(15) des) --> SDA is highly unlikely.

scholarly journals Evaluation of Borage (Borago officinalis L.) Genotypes for Nutraceutical Value Based on Leaves Fatty Acids Composition

Foods ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 16
Author(s):  
Celia Montaner ◽  
Raquel Zufiaurre ◽  
María Movila ◽  
Cristina Mallor
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Linolenic Acid ◽  
Germplasm Collection ◽  
Stearidonic Acid ◽  
Human Consumption ◽  
Growth Stages ◽  
Borago Officinalis ◽  
Breeding Lines ◽  
Plant Stage

Borage (Borago officinalis L.) is a traditional vegetable grown and consumed in some Spanish regions. The objective of this study was to determine the variability and evolution of fatty acid composition in a borage germplasm collection formed by wild types, breeding lines, commercial varieties, and landraces. Fatty acids were analysed in petioles, the commonly edible part of the leaves, and the leaf blades, the by-product of the borage industry, in two growth stages: at the optimal harvest period (120 days after sowing) and at the end of the harvest period (150 days after sowing). The results showed that for each of the eight fatty acids identified, there were significant differences among the twelve borage genotypes depending on the developmental plant stage at sampling date and the part of the leaf analysed, the interaction effect also being statistically significant. The main polyunsaturated fatty acids identified were: linoleic acid (18:2 n6, LA), α-linolenic acid (18:3 n3, ALA), γ-linolenic acid (18:3 n6, GLA), and stearidonic acid (SDA, 18:4, n-3), account for approximately 70% of polyunsaturated fatty acids. Blue-flowered genotypes differ from white-flowered genotypes by their high content of ALA and SDA, which can be exploited in borage breeding programs. Petioles from young plants present higher n6 fatty acids, while older plants produce a great amount of n3 fatty acids. Besides, the higher content of ALA in the leaf blades gives them a good dietary potential. All these fatty acids, with multiple health benefits, support the nutraceutical interest of borage leaves (both petioles and leaf blades) for human consumption, animal feeding, medicine, and pharmacy.

Creation and analysis of marker free transgenic soybean germplasm with low phosphate tolerance transcription factor GmPTF1 based on Cre/loxP system

2019 ◽  
Vol 45 (5) ◽  
pp. 683 ◽  
Author(s):  
Xiao-Fang ZHANG ◽  
Qiu-Ping DONG ◽  
Xiao QIAO ◽  
Ya-Ke QIAO ◽  
Bing-Bing WANG ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Transgenic Soybean ◽  
Soybean Germplasm ◽  
Marker Free

Production of Gamma Linolenic Acid in Seeds of Transgenic Soybean

2003 ◽  
pp. 421-424 ◽  
Author(s):  
Tom Clemente ◽  
Aiqiu Xing ◽  
Xingguo Ye ◽  
Shirley Sato ◽  
Bruce Schweiger ◽  
...  
Keyword(s):  
Linolenic Acid ◽  
Gamma Linolenic Acid ◽  
Transgenic Soybean

Leaf lipids of Ribes nigrum: a plant containing 16:3, α-18:3, γ-18:3 and 18:4 fatty acids

2000 ◽  
Vol 28 (6) ◽  
pp. 583-586 ◽  
Author(s):  
G. Dobson
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Linolenic Acid ◽  
Stearidonic Acid ◽  
Ribes Nigrum ◽  
Total Fatty Acid Composition ◽  
Minor Contribution ◽  
Glycerolipid Composition ◽  
A Minor ◽  
Hexadecatrienoic Acid

The glycerolipid composition of Ribes nigrum (blackcurrant) leaves was determined. The total fatty acid composition was unusual in that α-linolenic acid (α-18:3) occurred together with cis-7,10,13-hexadecatrienoic acid (16:3) and lower amounts of stearidonic acid (18:4) and γ-linolenic acid (γ-18:3). Monogalactosyldiacylglycerol contained the highest proportion of 16:3 with less in digalactosyldiacylglycerol. γ-18:3 and 18:4 were present in all lipids and 18:4 was always greater than γ-18:3. The highest percentages of γ-18:3 and 18:4 were in phosphatidylcholine, but phosphatidylglycerol was particularly low in these acids. In summary, the lipid composition was largely typical of 16:3 plants but there was a minor contribution typical of 18:4 plants. The possibility of three pathways for glycolipid biosynthesis is discussed.

Asperugo Procumbens: a Review of Botany, Traditional Uses, Phytochemistry and Pharmacology

2021 ◽  
Vol 15 (10) ◽  
pp. 3092-3095
Author(s):  
Grzegorz Łazarski
Keyword(s):  
Fatty Acids ◽  
Traditional Medicine ◽  
Linolenic Acid ◽  
Pharmacological Study ◽  
Stearidonic Acid ◽  
Pharmacological Properties ◽  
Omega 3 ◽  
Comprehensive Overview ◽  
Traditional Uses ◽  
Wide Range

Asperugo procumbens is a medicinal plant widely distributed in the world, which is commonly used in the traditional medicine of the Middle East, while currently overlooked in European pharmacopoeias. The aim of the study is to present a comprehensive overview of A. procumbens in botany, traditional medicine, phytochemistry and pharmacology according to the up-to-date data. Scientific literature on the species was collected based on publicly available databases such as: PubMed, Web of Science, Scopus, Google, Google Scholar as well as monographs and PhD theses. In traditional medicine the aerial part of A. procumbens is used for treatment of skin infections, herpes, liver and respiratory tract diseases, to strengthen the heart and the nervous system, and others. Contemporary studies on the pharmacological activity of A. procumbens revealed that it exhibits a wide range of pharmacological properties, including antioxidant, antidepressant, sedative-hypnotic, antibacterial, as well as chemopreventive and antihypertensive properties. Despite many proven medicinal properties, the species does not have a developed phytochemical profile and its chemical composition is very poorly understood. The species is known to contain tannins, flavonoids and phenolics. Only the content of fatty acids is recognised in detail. The species is a good source of omega-3 fatty acids – stearidonic acid (SDA), α-linolenic acid (ALA), and omega-6 fatty acid – γ-linolenic acid (GLA). This article, based on the available literature, highlights the traditional uses, phytochemistry and pharmacological properties of A. procumbens, which may provide a foundation for further pharmacological study as well as clinical application of the species. Keywords: Asperugo procumbens, German madwort, Boraginaceae, traditional uses

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