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Spontaneous large-scale autolysis in Clostridium acetobutylicum contributes to generation of more spores
Liu, Zhen1,2; Qiao, Kai3; Tian, Lei1,2; Zhang, Quan3; Liu, Zi-Yong1,2; Li, Fu-Li1,2,3
2015-09-09
发表期刊FRONTIERS IN MICROBIOLOGY
卷号6
摘要Autolysis is a widespread phenomenon in bacteria. In batch fermentation of Clostridium acetobutylicum ATCC 824, there is a spontaneous large-scale autolysis phenomenon with significant decrease of cell density immediately after exponential phase. To unravel the role of autolysis, an autolysin-coding gene, CA_C0554, was disrupted by using ClosTron system to obtain the mutant C. acetobutylicum lyc::int(72). The lower final cell density and faster cell density decrease rate of C. acetobutylicum ATCC 824 than those of C. acetobutylicum lyc::int(72) indicates that CA_C0554 was an important but not the sole autolysin-coding gene responding for the large-scale autolysis. Similar glucose utilization and solvents production but obvious lower cell density of C. acetobutylicum ATCC 824 comparing to C. acetobutylicum lyc::int(72) suggests that lysed C. acetobutylicum ATCC 824 cells were metabolic inactive. On the contrary, the spore density of C. acetobutylicum ATCC 824 is 26.1% higher than that of C. acetobutylicum lyc::int(72) in the final culture broth of batch fermentation. We speculated that spontaneous autolysis of metabolic-inactive cells provided nutrients for the sporulating cells. The present study suggests that one important biological role of spontaneous large-scale autolysis in C. acetobutylicum ATCC 824 batch fermentation is contributing to generation of more spores during sporulation.
文章类型Article
关键词Autolysis Sporulation Clostridium Acetobutylicum Clostron Autolysin
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.3389/fmicb.2015.00950
关键词[WOS]BACILLUS-SUBTILIS 168 ; ESCHERICHIA-COLI ; DAIRY PROPIONIBACTERIA ; SOLVENT PRODUCTION ; LYTIC ENZYMES ; GENE ; PEPTIDOGLYCAN ; FERMENTATION ; PURIFICATION ; SPORULATION
收录类别SCI
语种英语
WOS研究方向Microbiology
WOS类目Microbiology
WOS记录号WOS:000361157900002
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6493
专题分子微生物工程研究组
作者单位1.Chinese Acad Sci, Key Lab Biofuels, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Shandong Prov Key Lab Energy Genet, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
3.Sinopec Fushun Res Inst Petr & Petrochem, Fushun, Peoples R China
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Liu, Zhen,Qiao, Kai,Tian, Lei,et al. Spontaneous large-scale autolysis in Clostridium acetobutylicum contributes to generation of more spores[J]. FRONTIERS IN MICROBIOLOGY,2015,6.
APA Liu, Zhen,Qiao, Kai,Tian, Lei,Zhang, Quan,Liu, Zi-Yong,&Li, Fu-Li.(2015).Spontaneous large-scale autolysis in Clostridium acetobutylicum contributes to generation of more spores.FRONTIERS IN MICROBIOLOGY,6.
MLA Liu, Zhen,et al."Spontaneous large-scale autolysis in Clostridium acetobutylicum contributes to generation of more spores".FRONTIERS IN MICROBIOLOGY 6(2015).
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