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作 者:刘亮 杨金水[1] 黄娅茹 姜婷婷 余启军 袁红莉[1] LIU Liang;YANG Jinshui;HUANG Yaru;JIANG Tingting;YU Qijun;YUAN Hongli(College of Biology/National Key Laboratory of Livestock and Poultry Breeding/Ministry of Agriculture and Rural Affairs Key Laboratory of Soil Microbiology,China Agricultural University,Beijing 100193,China)
机构地区:[1]中国农业大学生物学院/畜禽生物育种全国重点实验室/农业农村部土壤微生物学重点实验室,北京100193
出 处:《华中农业大学学报》2024年第4期33-40,共8页Journal of Huazhong Agricultural University
基 金:畜禽生物育种全国重点实验室开放课题(2024SKLAB6-7)。
摘 要:联合生物加工被认为是木质纤维素转化的最理想形式,虽然通过代谢工程改造可以基于单一菌株实现联合生物加工,但过高的代谢压力导致菌株转化效率并不理想。为了系统认识微生物种间分工和实现联合生物加工的理性设计,本文聚焦于天然木质纤维素降解菌群中的种间分工,从底物协同水解、营养因子交叉喂养和“糖骗子”限制的角度综述了目前物种间的分工协作模式,介绍了物种分工在木质纤维素转化中的应用,以及天然木质纤维素菌群中种间分工研究的挑战和未来发展方向,为联合生物加工菌群的构建提供设计原则,推动木质纤维素的高效转化。Consolidated bioprocessing(CBP)is considered as the most ideal form for lignocellulose conversion.Although the modification of metabolic engineering can achieve CBP based on a single strain,excessive metabolic pressure alone leads to the suboptimal transformation efficiency of strain.This article focused on the interspecific division in the microbial community of degrading natural lignocellulosic to systematically understand the interspecific division of labor and realize the rational design of CBP.The current patterns of interspecific division of labor were reviewed in terms of the synergistic hydrolysis of substrate,the cross-feeding of nutritional factors,and the restriction of“sugar cheaters”.The application of interspecific division of labor in lignocellulose conversion,the challenges and development directions of studying interspecific division in microbial communities of natural lignocellulose were introduced.It will provide principles for designing the construction of a microbial community with consolidated bioprocessing to promote the efficient biotransformation of lignocellulose.
关 键 词:微生物菌群 种间分工 木质纤维素转化 联合生物加工 人工菌群
分 类 号:X172[环境科学与工程—环境科学]
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