Abstract:
:The codon-optimized genes crtB and crtI of Pantoea ananatis were expressed in Yarrowia lipolytica under the control of the TEF1 promoter of Y. lipolytica. Additionally, the rate-limiting genes for isoprenoid biosynthesis in Y. lipolytica, GGS1 and HMG1, were overexpressed to increase the production of lycopene. All of the genes were also expressed in a Y. lipolytica strain with POX1 to POX6 and GUT2 deleted, which led to an increase in the size of lipid bodies and a further increase in lycopene production. Lycopene is located mainly within lipid bodies, and increased lipid body formation leads to an increase in the lycopene storage capacity of Y. lipolytica. Growth-limiting conditions increase the specific lycopene content. Finally, a yield of 16 mg g(-1) (dry cell weight) was reached in fed-batch cultures, which is the highest value reported so far for a eukaryotic host.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Matthäus F,Ketelhot M,Gatter M,Barth Gdoi
10.1128/AEM.03167-13subject
Has Abstractpub_date
2014-03-01 00:00:00pages
1660-9issue
5eissn
0099-2240issn
1098-5336pii
AEM.03167-13journal_volume
80pub_type
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