期刊
FRONTIERS IN MICROBIOLOGY
卷 12, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fmicb.2021.647164
关键词
cyanobacteria; Synechococcus elongatus PCC 7942; ATP synthase; sucrose; high temperature and high light tolerances
类别
资金
- National Natural Science Foundation of China [31525002, 31872624, 31770092, 32070084, 31700048]
- Strategic Priority Research Program of the Chinese Academy of Sciences (Transformational Technologies for Clean Energy and Demonstration) [XDA21010211]
- Shandong Taishan Scholarship
Photosynthetic biomanufacturing is a promising method for green production of biofuels and biochemicals using carbon dioxide and solar energy. A convenient strategy has been proposed to rapidly improve the high light and high temperature tolerances of cyanobacterial chassis strains, enhancing cellular robustness and sucrose synthesizing capacities of the cell factories.
Photosynthetic biomanufacturing is a promising route for green production of biofuels and biochemicals utilizing carbon dioxide and solar energy. Cyanobacteria are important microbial platforms for constructing photosynthetic cell factories. Toward scaled outdoor cultivations in the future, high light and high temperature tolerances of cyanobacterial chassis strains and cell factories would be determinant properties to be optimized. We proposed a convenient strategy for rapidly improving high light and high temperature tolerances of an important cyanobacterial chassis Synechococcus elongatus PCC 7942 and the derived cell factories. Through introduction and isolation of an AtpA-C252F mutation, PCC 7942 mutants with improved high light and high temperature tolerances could be obtained in only 4 days with an antibiotics-free mode. Adopting this strategy, cellular robustness and sucrose synthesizing capacities of a PCC 7942 cell factory were successfully improved.
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