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Skip to Search Results- 31Chen, Guanqun
- 18Weselake, Randall J.
- 18Xu, Yang
- 16Singer, Stacy D.
- 9Caldo, Kristian Mark P.
- 9Mietkiewska, Elzbieta
- 11DGAT
- 6Triacylglycerol
- 6Triacylglycerol biosynthesis
- 5Linum usitatissimum
- 5Saccharomyces cerevisiae
- 4LACS
- 35Agricultural, Food and Nutritional Science, Department of
- 35Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
- 2Graduate and Postdoctoral Studies (GPS), Faculty of
- 2Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
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Identification of genes associated with ricinoleic acid accumulation in Hiptage benghalensis via transcriptome analysis
Download2018-12-16
Tian, Bo, Lu, Tianquan, Xu, Yang, Wang, Ruling, Chen, Guanqun
Background: Ricinoleic acid is a high-value hydroxy fatty acid with broad industrial applications.Hiptage benghalensis seed oil contains a high amount of ricinoleic acid (~80%) and represents an emerging source of this unusual fatty acid. However, the mechanism of ricinoleic acid accumulation in...
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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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In vivo and in vitro evidence for biochemical coupling of reactions catalyzed by lysophosphatidylcholine acyltransferase and diacyglycerol acyltransferase
Download2015
Greer, Michael S., Pan, Xue, Weselake, Randall J., Chen, Guanqun, Zou, Jitao, Caldo, Kristian Mark P., Kazachkov, Michael
Seed oils of flax (Linum usitatissimum L.) and many other plant species contain substantial amounts of polyunsaturated fatty acids (PUFAs). Phosphatidylcholine (PC) is the major site for PUFA synthesis. The exact mechanisms of how these PUFAs are channeled from PC into triacylglycerol (TAG) needs...
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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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Metabolomic study of stress responses leading to plant resistance in mandarin fruit mediated by preventive applications of Bacillus subtilis cyclic lipopeptides
Download2019-10-01
Tunsagool, Paiboon, Wang, Xiohang, Leelasuphakul, Wichitra, Jutidamrongphan, Warangkana, Phaonakrop, Narumon, Jaresitthikunchai, Janthima, Roytrakul, Sittiruk, Chen, Guanqun, Li, Liang
Although green mold rot caused by Penicillium digitatum is a major postharvest disease in mandarin fruit, the fruit’s defense mechanism at the metabolomic level is largely unknown. Here, the expressed metabolome network leading to plant resistance to stresses induced by exposing of different...
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Multiple mechanisms contribute to increased neutral lipid accumulation in yeast producing recombinant variants of plant diacylglycerol acyltransferase 1
Download2017-09-01
Shah, Saleh, Xu, Yang, Ramakrishnan, Geetha, Caldo, Kristian Mark P., Chen, Guanqun, Ozga, Jocelyn, Greer, Michael S., Lemieux, M. Joanne, Wu, Limin, Weselake, Randall J.
The apparent bottleneck in the accumulation of oil during seed development in some oleaginous plant species is the formation of triacylglycerol (TAG) by the acyl-CoA-dependent acylation of sn-1,2- diacylglycerol catalyzed by diacylglycerol acyltransferase (DGAT, EC 2.3.1.20). Improving DGAT...
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Physaria fendleri and Ricinus communis LCAT-like phospholipases selectively cleave hydroxy acyl chains from phosphatidylcholine
Download2020-10-27
Xu, Yang, Caldo, Kristian Mark P., Singer, Stacy D., Mietkiewska, Elzbieta, Greer, Michael S., Tian, Bo, Dyer, John M., Smith, Mark, Zhou, Xue-Rong, Qiu, Xiao, Weselake, Randall J., Chen, Guanqun
Producing hydroxy fatty acids (HFAs) in transgenic crops represents a promising strategy to meet our demands for specialized plant oils with industrial applications. The expression of Ricinus communis (castor) OLEATE 12-HYDROXYLASE (RcFAH12) in Arabidopsis has resulted in only...
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2013
Chen, Guanqun, Weselake, Randall J, Greer, Michael S.
Plant phospholipase As (PLAs) are a complex group of enzymes that catalyze the release of free fatty acids from phospholipids. Plant PLAs can be grouped into three families, PLA1, PLA2, and patatin-like PLA, that catalyze the hydrolysis of acyl groups from the sn-1 and/or sn-2 position. Each...
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Plant sn‐Glycerol‐3‐Phosphate Acyltransferases: Biocatalysts Involved in the Biosynthesis of Intracellular and Extracellular Lipids
Download2018-05-31
Jayawardhane, Kethmi N., Singer, Stacy D., Weselake, Randall J., Chen, Guanqun
Acyl‐lipids such as intracellular phospholipids, galactolipids, sphingolipids, and surface lipids play a crucial role in plant cells by serving as major components of cellular membranes, seed storage oils, and extracellular lipids such as cutin and suberin. Plant lipids are also widely used to...
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Properties and Biotechnological Applications of Acyl‐CoA:diacylglycerol Acyltransferase and Phospholipid:diacylglycerol Acyltransferase from Terrestrial Plants and Microalgae
Download2018-07-30
Xu, Yang, Caldo, Kristian Mark P., Pal‐Nath, Dipasmita, Ozga, Jocelyn, Lemieux, M. Joanne, Weselake, Randall J., Chen, Guanqun
Triacylglycerol (TAG) is the major storage lipid in most terrestrial plants and microalgae, and has great nutritional and industrial value. Since the demand for vegetable oil is consistently increasing, numerous studies have been focused on improving the TAG content and modifying the fatty‐acid...