Genome-wide transcriptional analysis suggests hydrogenase- and nitrogenase-mediated hydrogen production in Clostridium butyricum CWBI 1009

被引:41
作者
Calusinska, Magdalena [1 ,5 ]
Hamilton, Christopher [2 ]
Monsieurs, Pieter [3 ]
Mathy, Gregory [4 ]
Leys, Natalie [3 ]
Franck, Fabrice [4 ]
Joris, Bernard [1 ]
Thonart, Philippe [2 ]
Hiligsmann, Serge [2 ]
Wilmotte, Annick [1 ]
机构
[1] Univ Liege, Ctr Prot Engn Bacterial Physiol & Genet, B-4000 Liege, Belgium
[2] Univ Liege, Walloon Ctr Ind Biol, B-4000 Liege, Belgium
[3] Belgian Nucl Res Ctr SCK CEN, Inst Environm Hlth & Safety, Expertise Grp Mol & Cellular Biol, Microbiol Unit, B-2400 Mol, Belgium
[4] Univ Liege, Bioenerget Lab, B-4000 Liege, Belgium
[5] Luxembourg Inst Sci & Technol, Environm Res & Innovat Dept, L-4422 Belvaux, Luxembourg
关键词
Dark fermentation; Clostridium butyricum; FeFe] hydrogenase; Nitrogenase; RNA-seq; 2D-DIGE; RHODOBACTER-SPHAEROIDES; BIOHYDROGEN PRODUCTION; SEQUENCED-BATCH; BACTERIA; ACETOBUTYLICUM; FIXATION; GLUCOSE; PH; FERMENTATION; BEIJERINCKII;
D O I
10.1186/s13068-015-0203-5
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Background: Molecular hydrogen, given its pollution-free combustion, has great potential to replace fossil fuels in future transportation and energy production. However, current industrial hydrogen production processes, such as steam reforming of methane, contribute significantly to the greenhouse effect. Therefore alternative methods, in particular the use of fermentative microorganisms, have attracted scientific interest in recent years. However the low overall yield obtained is a major challenge in biological H-2 production. Thus, a thorough and detailed understanding of the relationships between genome content, gene expression patterns, pathway utilisation and metabolite synthesis is required to optimise the yield of biohydrogen production pathways. Results: In this study transcriptomic and proteomic analyses of the hydrogen-producing bacterium Clostridium butyricum CWBI 1009 were carried out to provide a biomolecular overview of the changes that occur when the metabolism shifts to H-2 production. The growth, H-2-production, and glucose-fermentation profiles were monitored in 20 L batch bioreactors under unregulated-pH and fixed-pH conditions (pH 7.3 and 5.2). Conspicuous differences were observed in the bioreactor performances and cellular metabolisms for all the tested metabolites, and they were pH dependent. During unregulated-pH glucose fermentation increased H-2 production was associated with concurrent strong up-regulation of the nitrogenase coding genes. However, no such concurrent up-regulation of the [FeFe] hydrogenase genes was observed. During the fixed pH 5.2 fermentation, by contrast, the expression levels for the [FeFe] hydrogenase coding genes were higher than during the unregulated-pH fermentation, while the nitrogenase transcripts were less abundant. The overall results suggest, for the first time, that environmental factors may determine whether H-2 production in C. butyricum CWBI 1009 is mediated by the hydrogenases and/or the nitrogenase. Conclusions: This work, contributing to the field of dark fermentative hydrogen production, provides a multidisciplinary approach for the investigation of the processes involved in the molecular H-2 metabolism of clostridia. In addition, it lays the groundwork for further optimisation of biohydrogen production pathways based on genetic engineering techniques.
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页数:16
相关论文
共 47 条
[1]  
ADAMS MWW, 1984, J BIOL CHEM, V259, P7045
[2]   Metabolite Stress and Tolerance in the Production of Biofuels and Chemicals: Gene-Expression-Based Systems Analysis of Butanol, Butyrate, and Acetate Stresses in the Anaerobe Clostridium acetobutylicum [J].
Alsaker, Keith V. ;
Paredes, Carlos ;
Papoutsakis, Eleftherios T. .
BIOTECHNOLOGY AND BIOENGINEERING, 2010, 105 (06) :1131-1147
[3]   Common patterns - unique features: nitrogen metabolism and regulation in Gram-positive bacteria [J].
Amon, Johannes ;
Titgemeyer, Fritz ;
Burkovski, Andreas .
FEMS MICROBIOLOGY REVIEWS, 2010, 34 (04) :588-605
[4]  
Bothe H, 2011, BIOENERGETIC PROCESSES OF CYANOBACTERIA: FROM EVOLUTIONARY SINGULARITY TO ECOLOGICAL DIVERSITY, P137, DOI 10.1007/978-94-007-0388-9_6
[5]   NITROGENASE REACTIVITY - INSIGHT INTO THE NITROGEN-FIXING PROCESS THROUGH HYDROGEN-INHIBITION AND HD-FORMING REACTIONS [J].
BURGESS, BK ;
WHERLAND, S ;
NEWTON, WE ;
STIEFEL, EI .
BIOCHEMISTRY, 1981, 20 (18) :5140-5146
[6]   Metabolic flux analysis of hydrogen production network by Clostridium butyricum W5: Effect of pH and glucose concentrations [J].
Cai, Guiqin ;
Jin, Bo ;
Saint, Chris ;
Monis, Paul .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (13) :6681-6690
[7]   Genetic diversity and amplification of different clostridial [FeFe] hydrogenases by group-specific degenerate primers [J].
Calusinska, M. ;
Joris, B. ;
Wilmotte, A. .
LETTERS IN APPLIED MICROBIOLOGY, 2011, 53 (04) :473-480
[8]   The surprising diversity of clostridial hydrogenases: a comparative genomic perspective [J].
Calusinska, Magdalena ;
Happe, Thomas ;
Joris, Bernard ;
Wilmotte, Annick .
MICROBIOLOGY-SGM, 2010, 156 :1575-1588
[9]   NITROGEN FIXATION IN CELL-FREE EXTRACTS OF CLOSTRIDIUM-PASTEURIANUM [J].
CARNAHAN, JE ;
MORTENSON, LE ;
MOWER, HF ;
CASTLE, JE .
BIOCHIMICA ET BIOPHYSICA ACTA, 1960, 44 (03) :520-535
[10]   Nitrogen-fixation genes and nitrogenase activity in Clostridium acetobutylicum and Clostridium beijerinckii [J].
Chen, JS ;
Toth, J ;
Kasap, M .
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY, 2001, 27 (05) :281-286