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Skip to Search Results- 31Chen, Guanqun
- 17Xu, Yang
- 15Singer, Stacy D.
- 14Weselake, Randall J.
- 9Caldo, Kristian Mark P.
- 7Mietkiewska, Elzbieta
- 9DGAT
- 6Triacylglycerol biosynthesis
- 5Saccharomyces cerevisiae
- 4Triacylglycerol
- 3Arabidopsis thaliana
- 3LACS
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2022-01-01
Wang, Juli, Singer, Stacy D., Souto, Bernardo A., Asomaning, Justice, Ullah, Aman, Bressler, David, Chen, Guanqun
Abstract The expanding use of fossil fuels has caused concern in terms of both energy security and environmental issues. Therefore, attempts have been made worldwide to promote the development of renewable energy sources, among which biofuel is especially attractive. Compared to other biofuels,...
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Improving the production of punicic acid in baker’s yeast by engineering genes in acyl channeling processes and adjusting precursor supply
Download2021-01-01
Wang, Juli, Xu, Yang, Holic, Roman, Yu, Xiaochen, Singer, Stacy D., Chen, Guanqun
ABSTRACT Punicic acid (PuA) is a high-value edible conjugated fatty acid with strong bioactivities and has important potential applications in nutraceutical, pharmaceutical, feeding and oleochemical industries. Since the production of PuA is severely limited by the fact that its natural source...
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The effect of AINTEGUMENTA-LIKE 7 over-expression on seed fatty acid biosynthesis, storage oil accumulation and the transcriptome in Arabidopsis thaliana
Download2021-01-01
Singer, Stacy D., Jayawardhane, Kethmi N., Jiao, Chen, Weselake, Randall J., Chen, Guanqun
ABSTRACT Seed fatty acids (FAs) and triacylglycerol (TAG) contribute to many functions in plants, and seed lipids have broad food, feed and industrial applications. As a result, an enormous amount of attention has been dedicated towards uncovering the regulatory cascade responsible for the fine44...
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Evolutionary and biochemical characterization of a Chromochloris zofingiensis MBOAT with wax synthase and DGAT activity
Download2021-01-01
Xu, Yang, Pan, Xue, Lu, Junhao, Wang, Juli, Shan, Qiyuan, Stout, Jake, Chen, Guanqun
Abstract: Wax synthase (WS) catalyzes the last step in wax ester biosynthesis in green plants. Two unrelated subfamilies of WS including the bifunctional acyltransferase and plant-like WS have been reported, but the latter is largely uncharacterized in microalgae. Here, we functionally...
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Kinetic improvement of an algal diacylglycerol acyltransferase 1 via fusion with an acyl-CoA binding protein
Download2020-01-01
Xu, Yang, Caldo, Kristian Mark P., Falarz, Lucas, Jayawardhane, Kethmi, Chen, Guanqun
SUMMARY Microalgal oils in the form of triacylglycerols (TAGs) are broadly used as nutritional supplements and biofuels. Diacylglycerol acyltransferase (DGAT) catalyzes the final step of acyl-CoA-dependent biosynthesis of TAG and is considered a key target for manipulating oil production....
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2020-11-01
Xu, Yang, Mietkiewska, Elzbieta, Sha, Saleh, Weselake, Randall J., Chen, Guanqun
Punicic acid (PuA; 18:3Δ9cis,11trans,13cis), a conjugated linolenic acid isomer bearing three conjugated double bonds, is associated with various health benefits and has potential for industrial use. The major nature source of this unusual fatty acid is pomegranate (Punica granatum) seed oil,...
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Feeding a Bioactive Oil Enriched in Stearidonic Acid during Early Life Influences Immune System Maturation in Neonatal Sprague-Dawley Rats
Download2020-03-01
Patel, Dhruvesh, Goruk, Susan, Newell, Marnie, Chen, Guanqun, Richard, Caroline, Field, Catherine J.
Long-chain n-3 PUFAs (LCPUFAs) improve immune development and reduce atopic disease risk in infants. Stearidonic acid (SDA) can be a substrate for biosynthesis of n-3 LCPUFAs.<bold>Objective: </bold>We aimed to determine the effect of feeding an SDA-enriched diet during suckling and weaning on...
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Characterization of the diversification of phospholipid:diacylglycerol acyltransferases in the green lineage
Download2020-06-15
Falarz, Lucas J., Xu, Yang, Caldo, Kristian Mark P., Garroway, Colin J., Singer, Stacy D., Chen, Guanqun
Triacylglycerols have important physiological roles in photosynthetic organisms, and are widely used as food, feed and industrial materials in our daily life. Phospholipid:diacylglycerol acyltransferase (PDAT) is the pivotal enzyme catalyzing the acyl‐CoA‐independent biosynthesis of...
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Downregulation of key genes involved in carbon metabolism in Medicago truncatula results in increased lipid accumulation in vegetative tissue
Download2020-02-11
Wijekoon, Champa, Singer, Stacy D., Weselake, Randall J., Petrie, James R., Chen, Guanqun, Singh, Surinder, Eastmond, Peter J., Acharya, Surya N.
Alfalfa (Medicago sativa L.) is the most widely grown perennial forage crop and is a close relative of the model diploid legume Medicago truncatula Gaertn. However, use of alfalfa leads to substantial greenhouse gas emissions and economic losses related to inefficiencies in rumen fermentation....
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Seed-specific down-regulation of Arabidopsis CELLULOSE SYNTHASE 1 or 9 reduces seed cellulose content and differentially affects carbon partitioning
Download2020-04-20
Jayawardhane, Kethmi N., Singer, Stacy D., Ozga, Jocelyn A., Rizvi, Syed Masood, Weselake, Randall J., Chen, Guanqun
Key message Seed-specific down-regulation of AtCESA1 and AtCESA9, which encode cellulose synthase subunits, differentially affects seed storage compound accumulation in Arabidopsis. High amounts of cellulose can negatively affect crop seed quality, and, therefore, diverting carbon partitioning...