Clostridia

Bahl, Hubert; Dürre, Peter

doi:10.1002/9783527620999.ch9

Cited by 8 publications

(11 citation statements)

References 211 publications

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“…For the new isolates of the genus Clostridium , which constitute the subject of the present study, the result for these indexes was negative. Within the scope of the present study, no capacity was found in these strains to decompose urea (to ammonia and carbon dioxide), whereas this trait was characteristic of the bacteria from the genera Klebsiella or Proteus , and had even found certain applications in the area of environment protection (ammonification) ( Bahl and Dürre, 2001 ).…”

Section: Resultsmentioning

confidence: 73%

“…Xylose, in turn, is a monosaccharide contained in hemicellulose, and accouns for 30% of its composition. Reports confirm the existence of numerous representatives bacteria of the genus Clostridium capable of synthesizing xylanases ( Bahl and Dürre, 2001 ; Wang et al , 2011 ; Yung-Chung et al , 2010 ). Metabolic capacity associated with decomposition and fermentation of biomass is particularly important in the production of 2 nd generation biofuels (ethanol from cellulose) ( Maki et al , 2009 ; Williams et al , 2013 ).…”

Section: Resultsmentioning

confidence: 93%

“…Unsaturated free fatty acids also influence microbial metabolism and viability. Another problem, particularly in commercial production conditions, is the variability of the raw material (especially its quality), which may have adverse effect on process yields ( Bahl and Dürre, 2001 ; Kaur et al , 2012 ; Kubiak et al , 2012 ). A potential method of the crude product utilization may be its biotechnological conversion to 1,3-PD.…”

Section: Resultsmentioning

confidence: 99%

“…Their distinctive feature is a cylindrical shape. Cells of bacteria of the genus Clostridium are ciliated, mobile and capable of forming endospores ( Bahl and Dürre, 2001 ). For most species, the optimum growth temperature falls within the 30–40 °C range, while the optimum pH is contained in the 6.5–7.5 range.…”

Section: Introductionmentioning

confidence: 99%

“…Commonly found in nature, the main habitats of Clostridium genus bacteria are soil, river sludge, active sludge, animal excrements, etc. ( Schlegel, 1993 ; Bahl and Dürre, 2001 ).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Biotechnological potential of Clostridium butyricum bacteria

Szymanowska¹,

Orczyk²,

Leja³

2014

Braz. J. Microbiol.

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In response to demand from industry for microorganisms with auspicious biotechnological potential, a worldwide interest has developed in bacteria and fungi isolation. Microorganisms of interesting metabolic properties include non-pathogenic bacteria of the genus Clostridium, particularly C. acetobutylicum, C. butyricum and C. pasteurianum. A well-known property of C. butyricum is their ability to produce butyric acid, as well as effectively convert glycerol to 1,3-propanediol (38.2 g/L). A conversion rate of 0.66 mol 1,3-propanediol/mol of glycerol has been obtained. Results of the studies described in the present paper broaden our knowledge of characteristic features of C. butyricum specific isolates in terms of their phylogenetic affiliation, fermentation capacity and antibacterial properties.

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Section: Resultsmentioning

confidence: 73%

Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Commonly found in nature, the main habitats of Clostridium genus bacteria are soil, river sludge, active sludge, animal excrements, etc. ( Schlegel, 1993 ; Bahl and Dürre, 2001 ).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Biotechnological potential of Clostridium butyricum bacteria

Szymanowska¹,

Orczyk²,

Leja³

2014

Braz. J. Microbiol.

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Nesterenkonia sp. strain F, a halophilic bacterium producing acetone, butanol and ethanol under aerobic conditions

Amiri

Azarbaijani

Yeganeh

et al. 2016

Sci Rep

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The moderately halophilic bacterium Nesterenkonia sp. strain F, which was isolated from Aran-Bidgol Lake (Iran), has the ability to produce acetone, butanol, and ethanol (ABE) as well as acetic and butyric acids under aerobic and anaerobic conditions. This result is the first report of ABE production with a wild microorganism from a family other than Clostridia and also the first halophilic species shown to produce butanol under aerobic cultivation. The cultivation of Nesterenkonia sp. strain F under anaerobic conditions with 50 g/l of glucose for 72 h resulted in the production of 105 mg/l of butanol, 122 mg/l of acetone, 0.2 g/l of acetic acid, and 2.5 g/l of butyric acid. Furthermore, the strain was cultivated on media with different glucose concentrations (20, 50, and 80 g/l) under aerobic and anaerobic conditions. Through fermentation with a 50 g/l initial glucose concentration under aerobic conditions, 66 mg/l of butanol, 125 mg/l of acetone, 291 mg/l of ethanol, 5.9 g/l of acetic acid, and 1.2 g/l of butyric acid were produced. The enzymes pertaining to the fermentation pathway in the strain were compared with the enzymes of Clostridium spp., and the metabolic pathway of fermentation used by Nesterenkonia sp. strain F was investigated.

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Clostridium perfringens α-Toxin Impairs Innate Immunity via Inhibition of Neutrophil Differentiation

Takehara

Takagishi

Seike

et al. 2016

Sci Rep

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Although granulopoiesis is accelerated to suppress bacteria during infection, some bacteria can still cause life-threatening infections, but the mechanism behind this remains unclear. In this study, we found that mature neutrophils in bone marrow cells (BMCs) were decreased in C. perfringens-infected mice and also after injection of virulence factor α-toxin. C. perfringens infection interfered with the replenishment of mature neutrophils in the peripheral circulation and the accumulation of neutrophils at C. perfringens-infected sites in an α-toxin-dependent manner. Measurements of bacterial colony-forming units in C. perfringens-infected muscle revealed that α-toxin inhibited a reduction in the load of C. perfringens. In vitro treatment of isolated BMCs with α-toxin (phospholipase C) revealed that α-toxin directly decreased mature neutrophils. α-Toxin did not influence the viability of isolated mature neutrophils, while simultaneous treatment of BMCs with granulocyte colony-stimulating factor attenuated the reduction of mature neutrophils by α-toxin. Together, our results illustrate that impairment of the innate immune system by the inhibition of neutrophil differentiation is crucial for the pathogenesis of C. perfringens to promote disease to a life-threatening infection, which provides new insight to understand how pathogenic bacteria evade the host immune system.

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Clostridia

Cited by 8 publications

References 211 publications

Biotechnological potential of Clostridium butyricum bacteria

Biotechnological potential of Clostridium butyricum bacteria

Nesterenkonia sp. strain F, a halophilic bacterium producing acetone, butanol and ethanol under aerobic conditions

Clostridium perfringens α-Toxin Impairs Innate Immunity via Inhibition of Neutrophil Differentiation

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