Jackson, Harry O., Berepiki, Adokiye, Baylay, Alison J., Terry, Matthew J., Moore, C. Mark and Bibby, Thomas S. (2019) An inducible expression system in the alga Nannochloropsis gaditana controlled by the nitrate reductase promoter. Journal of Applied Phycology, 31, 269–279. (doi:10.1007/s10811-018-1510-6).
Abstract
The marine microalgal species Nannochloropsis gaditana has emerged as a model organism for research into algal-derived biofuels due to its ability to produce large amounts of lipids. In addition, this species has biotechnological potential owing to its ease of transformation and availability of a sequenced and annotated genome. The ability to control expression of transgenes in an inducible manner is an important requirement for many genetic engineering approaches and as such, inducible promoters are an important component of the molecular toolkit for a host organism. We designed an expression vector containing a ~ 1.3 kb region upstream of the endogenous nitrate reductase gene of N. gaditana and demonstrated this is capable of promoting the expression of a heterologous enhanced green fluorescent protein (eGFP) reporter. In the presence of ammonium, expression of the eGFP reporter was undetectable; however, in the presence of nitrate, eGFP expression is induced. In addition, we demonstrated how altering the nitrogen source of the growth media can be used to precisely control expression. We have shown that the nitrate reductase promoter can be used as a powerful molecular tool for heterologous protein expression in N. gaditana, further contributing to the development of this species as a candidate strain for biotechnology.
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- Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg) > Southampton Marine & Maritime Institute (pre 2018 reorg)
- Faculties (pre 2011 reorg) > Faculty of Medicine Health & Life Sciences (pre 2011 reorg) > Biological Sciences (pre 2011 reorg)
Current Faculties > Faculty of Environmental and Life Sciences > School of Biological Sciences > Biological Sciences (pre 2011 reorg)
School of Biological Sciences > Biological Sciences (pre 2011 reorg) - Faculties (pre 2018 reorg) > Faculty of Natural and Environmental Sciences (pre 2018 reorg) > Institute for Life Sciences (pre 2018 reorg)
Current Faculties > Faculty of Environmental and Life Sciences > Institute for Life Sciences > Institute for Life Sciences (pre 2018 reorg)
Institute for Life Sciences > Institute for Life Sciences (pre 2018 reorg) - Faculties (pre 2018 reorg) > Faculty of Natural and Environmental Sciences (pre 2018 reorg) > Ocean and Earth Science (pre 2018 reorg) > Marine Biogeochemistry (pre 2018 reorg)
Current Faculties > Faculty of Environmental and Life Sciences > School of Ocean and Earth Science > Ocean and Earth Science (pre 2018 reorg) > Marine Biogeochemistry (pre 2018 reorg)
School of Ocean and Earth Science > Ocean and Earth Science (pre 2018 reorg) > Marine Biogeochemistry (pre 2018 reorg) - Faculties (pre 2018 reorg) > Faculty of Natural and Environmental Sciences (pre 2018 reorg) > Biological Sciences (pre 2018 reorg) > Environmental (pre 2018 reorg)
Current Faculties > Faculty of Environmental and Life Sciences > School of Biological Sciences > Biological Sciences (pre 2018 reorg) > Environmental (pre 2018 reorg)
School of Biological Sciences > Biological Sciences (pre 2018 reorg) > Environmental (pre 2018 reorg)
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