Development in molecular genetic manipulation of solventogenic clostridia.
- Author:
Yang GU
1
;
Sheng YANG
1
;
Weihong JIANG
1
Author Information
1. Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.
- Publication Type:Journal Article
- MeSH:
Acetone;
metabolism;
Butanols;
metabolism;
Clostridium;
genetics;
metabolism;
Clostridium acetobutylicum;
genetics;
metabolism;
Clostridium beijerinckii;
genetics;
metabolism;
Ethanol;
metabolism;
Fermentation;
Genetic Engineering;
methods;
Industrial Microbiology;
methods;
Solvents;
metabolism
- From:
Chinese Journal of Biotechnology
2013;29(8):1133-1145
- CountryChina
- Language:Chinese
-
Abstract:
Solventogenic clostridia are important industrial microorganisms. Optimization of the fermentation performance of solventogenic clostridia, through genetic modification, has always been considered as the main topic involved in solvents production. However, due to the incomplete genetic tools, no research breakthroughs have been achieved. In recent years, with the development of new technologies and methods (e.g. TargeTron gene knockout, large DNA fragment integration method), great progresses have been made towards genetic engineering solventogenic clostridia. In this review, we summarize the development of the genetic tools for solventogenic clostridial species, and simultaneously point out the shortages of the existing technologies in efficiency and comprehensiveness. Therefore, optimization of the existing technologies in gene inactivation in clostridia, such as establishing homologous exchange-based gene deletion and exchange, is still imperative; and in parallel, new genetic tools (e.g. multiplex genome editing, targeted or random multi-copy gene integration) should also be timely developed.
