A Vernonia Diacylglycerol Acyltransferase Can Increase Renewable Oil Production

作者：Hatanaka, Tomoko; Serson, William; Li, Runzhi; Armstrong, Paul; Yu, Keshun; Pfeiffer, Todd; Li, Xi-Le; Hildebrand, David^*

来源：Journal of Agricultural and Food Chemistry, 2016, 64(38): 7188-7194.

DOI：10.1021/acs.jafc.6b02498

• triacylglycerol
• lipids
• oilseeds
• Glycine max
• diacylglycerol acyltransferase
• Vernonia galamensis

Increasing the production of plant oils such as soybean oil as a renewable resource for food and fuel is valuable. Successful breeding for higher oil levels in soybean, however, usually results in reduced protein, a second valuable seed component. This study shows that by manipulating a highly active aryl-CoA:diacylglycerol acyltransferase (DGAT) the hydrocarbon flux to oil in oilseeds can be increased without reducing the protein component. Compared to other plant DGATs, a DGAT from Vernonia galamensis (VgDGAT1A) produces much higher oil synthesis and accumulation activity in yeast, insect cells, and soybean. Soybean lines expressing VgDGAT1A show a 4% increase in oil content without reductions in seed protein contents or yield per unit land area. Incorporation of this trait into 50% of soybeans worldwide could result in an increase of 850 million kg oil/year without new land use or inputs and be worth similar to U.S.$1 billion/year at 2012 production and market prices.

• 出版日期2016-9-28
• 单位山西农业大学