Biosynthetic pathways of Vibrio succinogenes growing with fumarate as terminal electron acceptor and sole carbon source

1982 ◽  
Vol 131 (3) ◽  
pp. 216-223 ◽  
Author(s):  
Margret Bronder ◽  
Hildegard Mell ◽  
Erhard Stupperich ◽  
Achim Kr�ger
Keyword(s):  
Carbon Source ◽  
Electron Acceptor ◽  
Sole Carbon Source ◽  
Biosynthetic Pathways ◽  
Terminal Electron Acceptor ◽  
Vibrio Succinogenes

scholarly journals Functional anaerobic electron transport linked to the reduction of nitrate and fumarate in membranes from Escherichia coli as demonstrated by quenching of atebrin fluorescence

1975 ◽  
Vol 152 (3) ◽  
pp. 655-659 ◽  
Author(s):  
B A Haddock ◽  
M W Kendall-Tobias
Keyword(s):  
Escherichia Coli ◽  
Electron Transport ◽  
Carbon Source ◽  
Electron Acceptor ◽  
Functional Organization ◽  
Terminal Electron Acceptor ◽  
Membrane Particles ◽  
Electron Transport Chains ◽  
Anaerobic Electron Transport ◽  
Energy Dependent

Measurements were made of energy-dependent quenching of atebrin fluorescence in membrane particles prepared from Escherichia coli grown anaerobically with glycerol as carbon source in the presence of either nitrate or fumarate. It is concluded that this technique can be used to study the functional organization of the anaerobic proton-translocating electron-transport chains that use nitrate or fumarate as terminal electron acceptor.

scholarly journals Escherichia coli cytochrome c peroxidase is a respiratory oxidase that enables the use of hydrogen peroxide as a terminal electron acceptor

2017 ◽  
Vol 114 (33) ◽  
pp. E6922-E6931 ◽  
Author(s):  
Maryam Khademian ◽  
James A. Imlay
Keyword(s):  
Escherichia Coli ◽  
Hydrogen Peroxide ◽  
Carbon Source ◽  
Electron Acceptor ◽  
Electron Acceptors ◽  
Flux Rate ◽  
Terminal Electron Acceptor ◽  
E Coli ◽  
Nonfermentable Carbon Source ◽  
Quinone Pool

Microbial cytochrome c peroxidases (Ccp) have been studied for 75 years, but their physiological roles are unclear. Ccps are located in the periplasms of bacteria and the mitochondrial intermembrane spaces of fungi. In this study, Ccp is demonstrated to be a significant degrader of hydrogen peroxide in anoxic Escherichia coli. Intriguingly, ccp transcription requires both the presence of H2O2 and the absence of O2. Experiments show that Ccp lacks enough activity to shield the cytoplasm from exogenous H2O2. However, it receives electrons from the quinone pool, and its flux rate approximates flow to other anaerobic electron acceptors. Indeed, Ccp enabled E. coli to grow on a nonfermentable carbon source when H2O2 was supplied. Salmonella behaved similarly. This role rationalizes ccp repression in oxic environments. We speculate that micromolar H2O2 is created both biologically and abiotically at natural oxic/anoxic interfaces. The OxyR response appears to exploit this H2O2 as a terminal oxidant while simultaneously defending the cell against its toxicity.

Kinetic data and new enzymatic activities of Methanosarcina barkeri grown on methanol as the sole carbon source

1997 ◽  
Vol 36 (6-7) ◽  
pp. 175-182 ◽  
Author(s):  
Thomas Daußmann ◽  
Alexander Aivasidis ◽  
Christian Wandrey
Keyword(s):  
Fuel Cell ◽  
Carbon Source ◽  
Alcohol Dehydrogenase ◽  
Electron Acceptor ◽  
Sole Carbon Source ◽  
Methanosarcina Barkeri ◽  
Maximum Output ◽  
Strictly Anaerobic ◽  
Continuous Stirred Tank Reactor ◽  
Artificial Electron Acceptor

The strictly anaerobic methanogen Methanosarcina barkeri strain Fusaro (DSM 804) was fermented on a 3-liter scale in a CSTR (continuous stirred tank reactor) to obtain almost 10 g biomass dry weight per day. The generation time of the microorganism with methanol as the sole carbon source was 6.0 h, the maximal growth rate 0.115 h−1 correspondingly. In cell-free extracts from the fermented organism active hydrogenases were found. They reduced methyl viologen (MV⊕⊕), an artificial electron acceptor, molecular hydrogen being the substrate. This reaction was used to get electrochemical energy in a biochemical fuel cell. The maximum output of this fuel cell was 2.6 mW. Furthermore, cell-free extracts from M. barkeri showed alcohol dehydrogenase activity under aerobic conditions when N,N′-dimethyl-4-nitrosoaniline (NDMA) was used as an artificial electron acceptor. The NDMA-dependent alcohol dehydrogenase (NDMA-ADH) was purified to homogeneity by column chromatography. It is a homodimeric enzyme consisting of subunits of 45 kDa, the native molecular mass is about 87 kDa. The enzyme is independent of free coenzyme such as NAD, NADP, FMN, FAD and F420, but it possesses a tightly but noncovalently bound NADP(H) cofactor. The purified enzyme exhibited activity only with primary alcohols including aromatic alcohols, but methanol was not accepted. It also catalyzed the stoichiometric dismutation of aldehydes, especially long-chain aldehydes, to form a half mol of each of the corresponding alcohol and acid without addition of an electron carrier. NDMA-ADH from M. barkeri is a novel type of nicotinoprotein in methanogenic bacteria.

Energy metabolism and biosynthesis of Vibrio succinogenes growing with nitrate or nitrite as terminal electron acceptor

1983 ◽  
Vol 135 (1) ◽  
pp. 36-41 ◽  
Author(s):  
Martin Bokranz ◽  
Joachim Katz ◽  
Imke Schr�der ◽  
Anthony M. Roberton ◽  
Achim Kr�ger
Keyword(s):  
Energy Metabolism ◽  
Electron Acceptor ◽  
Terminal Electron Acceptor ◽  
Vibrio Succinogenes

scholarly journals Pandrug-resistant Pseudomonas sp. expresses New Delhi metallo-β-lactamase-1 and consumes ampicillin as sole carbon source

2020 ◽  
Author(s):  
Vivek Kumar Ranjan ◽  
Shriparna Mukherjee ◽  
Subarna Thakur ◽  
Krutika Gupta ◽  
Ranadhir Chakraborty
Keyword(s):  
Carbon Source ◽  
Sole Carbon Source ◽  
New Delhi ◽  
Pseudomonas Sp

Performance enhancement of H2S-based autotrophic denitrification with bio-gaseous CO2 as sole carbon source through new pH adjustment materials

2020 ◽  
Vol 261 ◽  
pp. 110157 ◽  
Author(s):  
Yongjie Liu ◽  
Nan Chen ◽  
Shuang Tong ◽  
Jing Liang ◽  
Chen Yang ◽  
...  
Keyword(s):  
Carbon Source ◽  
Sole Carbon Source ◽  
Performance Enhancement ◽  
Autotrophic Denitrification ◽  
Ph Adjustment

Effects of terminal electron acceptor strength on film morphology and ternary memory performance of triphenylamine donor based devices

2013 ◽  
Vol 1 (24) ◽  
pp. 3816 ◽  
Author(s):  
Hao Zhuang ◽  
Qijian Zhang ◽  
Yongxiang Zhu ◽  
Xufeng Xu ◽  
Haifeng Liu ◽  
...  
Keyword(s):  
Electron Acceptor ◽  
Memory Performance ◽  
Film Morphology ◽  
Terminal Electron Acceptor

scholarly journals Study of a plugging microbial consortium using crude oil as sole carbon source

2008 ◽  
Vol 5 (4) ◽  
pp. 367-374 ◽  
Author(s):  
Jing Wang ◽  
Guiwen Yan ◽  
Mingquan An ◽  
Jieli Liu ◽  
Houming Zhang ◽  
...  
Keyword(s):  
Carbon Source ◽  
Crude Oil ◽  
Sole Carbon Source ◽  
Microbial Consortium
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