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    • 1. 发明申请
    • Trophic Conversion of Obligate Phototrophic Algae Through Metabolic Engineering
    • 通过代谢工程营养转化特种光营养藻类
    • US20120034653A1
    • 2012-02-09
    • US13188806
    • 2011-07-22
    • Kirk Emil APTF.C. Thomas AllnuttDavid J. KyleJames Casey Lippmeier
    • Kirk Emil APTF.C. Thomas AllnuttDavid J. KyleJames Casey Lippmeier
    • C12P21/00C12N15/79C12N1/13C07C29/74C11B1/10C07C35/21C07C7/00C07K14/405A23K1/00C07K1/14
    • C12N15/8209C12N1/12C12N15/65C12N15/79C12N15/8207Y10S435/946
    • Most microalgae are obligate photoautotrophs and their growth is strictly dependent on the generation of photosynthetically-derived energy. In this study it is shown that the microalga Phaeodaclylurn tricornutum can be engineered to import glucose and grow in the dark through the introduction of genes encoding glucose transporters. Both the human and Chlorella kessleri glucose transporters facilitated the uptake of glucose by P. tricornutum, allowing the cells to metabolize exogenous organic carbon and thrive, independent of light. This is the first successful trophic conversion of an obligate photoautotroph through metabolic engineering, and it demonstrates that methods of cell nourishment can be fundamentally altered with the introduction of a single gene. Since strains transformed with the glucose transport genes are able to grow non-photosynthetically, they can be exploited for the analysis of photosynthetic processes through mutant generation and characterization. Finally, this work also represents critical progress toward large-scale commercial exploitation of obligate phototrophic algae through the use of microbial fermentation technology, eliminating significant limitations resulting from light-dependent growth.
    • 大多数微藻是专性光自养体,其生长严格依赖于光合作用衍生能量的产生。 在这项研究中,显示微藻Phaeodaclylurn三角褐豆可以通过引入编码葡萄糖转运蛋白的基因进行工程化以导入葡萄糖并在黑暗中生长。 人和小球藻凯斯勒葡萄糖转运蛋白都促进了三角褐指藻的葡萄糖摄取,使得细胞代谢外源有机碳,并且独立于光。 这是通过代谢工程首次成功地营养专一性自养型营养转化,并且表明通过引入单一基因可以从根本上改变细胞营养的方法。 由于用葡萄糖转运基因转化的菌株能够非光合作用生长,因此可以通过突变体的产生和表征来开发光合作用的分析。 最后,这项工作也是通过使用微生物发酵技术大规模商业开发专用光营养藻类的重要进展,消除了光依赖性生长造成的重大限制。
    • 5. 发明申请
    • TROPHIC CONVERSION OF OBLIGATE PHOTOTROPHIC ALGAE THROUGH METABOLIC ENGINEERING
    • 通过代谢工程进行的白藜芦醇的热转化
    • US20080138851A1
    • 2008-06-12
    • US11842898
    • 2007-08-21
    • Kirk Emil AptF.C. Thomas AllnuttDavid J. KyleJames Casey Lippmeier
    • Kirk Emil AptF.C. Thomas AllnuttDavid J. KyleJames Casey Lippmeier
    • C12Q1/02C12N1/12C12N15/74
    • C12N15/8209C12N1/12C12N15/65C12N15/79C12N15/8207Y10S435/946
    • Most microalgae are obligate photoautotrophs and their growth is strictly dependent on the generation of photosynthetically-derived energy. In this study it is shown that the microalga Phaeodaclylurn tricornutum can be engineered to import glucose and grow in the dark through the introduction of genes encoding glucose transporters. Both the human and Chlorella kessleri glucose transporters facilitated the uptake of glucose by P. tricornutum, allowing the cells to metabolize exogenous organic carbon and thrive, independent of light. This is the first successful trophic conversion of an obligate photoautotroph through metabolic engineering, and it demonstrates that methods of cell nourishment can be fundamentally altered with the introduction of a single gene. Since strains transformed with the glucose transport genes are able to grow non-photosynthetically, they can be exploited for the analysis of photosynthetic processes through mutant generation and characterization. Finally, this work also represents critical progress toward large-scale commercial exploitation of obligate phototrophic algae through the use of microbial fermentation technology, eliminating significant limitations resulting from light-dependent growth.
    • 大多数微藻是专性光自养体,其生长严格依赖于光合作用衍生能量的产生。 在这项研究中,显示微藻Phaeodaclylurn三角褐豆可以通过引入编码葡萄糖转运蛋白的基因进行工程化以导入葡萄糖并在黑暗中生长。 人和小球藻凯斯勒葡萄糖转运蛋白都促进了三角褐指藻的葡萄糖摄取,使得细胞代谢外源有机碳,并且独立于光。 这是通过代谢工程首次成功地营养专一性自养型营养转化,并且表明通过引入单一基因可以从根本上改变细胞营养的方法。 由于用葡萄糖转运基因转化的菌株能够非光合作用生长,因此可以通过突变体的产生和表征来开发光合作用的分析。 最后,这项工作也是通过使用微生物发酵技术大规模商业开发专用光营养藻类的重要进展,消除了光依赖性生长造成的重大限制。
    • 9. 发明授权
    • Trophic conversion of obligate phototrophic algae through metabolic engineering
    • 通过代谢工程营养转化专性光营养藻类
    • US08008061B2
    • 2011-08-30
    • US11842898
    • 2007-08-21
    • Kirk Emil AptF. C. Thomas AllnuttDavid J. KyleJames Casy Lippmeier
    • Kirk Emil AptF. C. Thomas AllnuttDavid J. KyleJames Casy Lippmeier
    • C12N1/12
    • C12N15/8209C12N1/12C12N15/65C12N15/79C12N15/8207Y10S435/946
    • Most microalgae are obligate photoautotrophs and their growth is strictly dependent on the generation of photosynthetically-derived energy. In this study it is shown that the microalga Phaeodaclylurn tricornutum can be engineered to import glucose and grow in the dark through the introduction of genes encoding glucose transporters. Both the human and Chlorella kessleri glucose transporters facilitated the uptake of glucose by P. tricornutum, allowing the cells to metabolize exogenous organic carbon and thrive, independent of light. This is the first successful trophic conversion of an obligate photoautotroph through metabolic engineering, and it demonstrates that methods of cell nourishment can be fundamentally altered with the introduction of a single gene. Since strains transformed with the glucose transport genes are able to grow non-photosynthetically, they can be exploited for the analysis of photosynthetic processes through mutant generation and characterization. Finally, this work also represents critical progress toward large-scale commercial exploitation of obligate phototrophic algae through the use of microbial fermentation technology, eliminating significant limitations resulting from light-dependent growth.
    • 大多数微藻是专性光自养体,其生长严格依赖于光合作用衍生能量的产生。 在这项研究中,显示微藻Phaeodaclylurn三角褐豆可以通过引入编码葡萄糖转运蛋白的基因进行工程化以导入葡萄糖并在黑暗中生长。 人和小球藻凯斯勒葡萄糖转运蛋白都促进了三角褐指藻的葡萄糖摄取,使得细胞代谢外源有机碳,并且独立于光。 这是通过代谢工程首次成功地营养专一性自养型营养转化,并且表明通过引入单一基因可以从根本上改变细胞营养的方法。 由于用葡萄糖转运基因转化的菌株能够非光合作用生长,因此可以通过突变体的产生和表征来开发光合作用的分析。 最后,这项工作也是通过使用微生物发酵技术大规模商业开发专利性光营养藻类的重要进展,消除了光依赖性生长造成的重大限制。