Results 41 to 50 of about 481 (139)
Survival of the Fittest: Overcoming Oxidative Stress at the Extremes of Acid, Heat and Metal [PDF]
, 2012 The habitat of metal respiring acidothermophilic lithoautotrophs is perhaps the most oxidizing environment yet identified. Geothermal heat, sulfuric acid and transition metals contribute both individually and synergistically under aerobic conditions to ...
Blum, Paul H., Maezato, Yukari
core +3 more sources
International Journal of Microbiology, Volume 2010, Issue 1, 2010., 2010 Batch cultures of Thermotoga maritima were performed in a bioreactor equipped with instruments adapted for experiments performed at 80∘C to mimic the fluctuating oxidative conditions in the hot ecosystems it inhabits. When grown anaerobically on glucose, T. maritima was shown to significantly decrease the redox potential (Eh) of the culture medium down
Raja Lakhal +7 more
wiley +1 more source
Archaea, Volume 2, Issue 3, Page 193-203, 2008., 2008 A highly efficient method for chromosomal integration of cloned DNA into Methanosarcina spp. was developed utilizing the site‐specific recombination system from the Streptomyces phage φC31. Host strains expressing the φC31 integrase gene and carrying an appropriate recombination site can be transformed with non‐replicating plasmids carrying the ...
Adam M. Guss +4 more
wiley +1 more source
AMP‐forming acetyl‐CoA synthetases in Archaea show unexpected diversity in substrate utilization
Archaea, Volume 2, Issue 2, Page 95-107, 2007., 2007 Adenosine monophosphate (AMP)‐forming acetyl‐CoA synthetase (ACS; acetate:CoA ligase (AMP‐forming), EC 6.2.1.1) is a key enzyme for conversion of acetate to acetyl‐CoA, an essential intermediate at the junction of anabolic and catabolic pathways. Phylogenetic analysis of putative short and medium chain acyl‐CoA synthetase sequences indicates that the ...
Cheryl Ingram-Smith, Kerry S. Smith
wiley +1 more source
A LysR-family transcriptional regulator is involved in the selenium-dependent transcriptional regpression of selenium-free hydrogenase gene groups in Methanococcus voltae [PDF]
, 2003 Methanococcus voltae besitzt zwei Coenzym F420 reduzierende und zwei Coenzym 420 nicht reduzierende Hydrogenasen. Zwei davon, Fru und Vhu, sind Selenoproteine.
Sun, Junsong
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A putative viral defence mechanism in archaeal cells
Archaea, Volume 2, Issue 1, Page 59-72, 2006., 2006 Clusters of regularly spaced direct repeats, separated by unconserved spacer sequences, are ubiquitous in archaeal chromosomes and occur in some plasmids. Some clusters constitute around 1% of chromosomal DNA. Similarly structured clusters, generally smaller, also occur in some bacterial chromosomes.
Reidun Lillestøl +3 more
wiley +1 more source
Archaea, Volume 1, Issue 2, Page 123-131, 2002., 2002 A choline‐containing phospholipid (PL‐4) in Methanopyrus kandleri cells was identified as archaetidylcholine, which has been described by Sprott et al. (1997). The PL‐4 consisted of a variety of molecular species differing in hydrocarbon composition. Most of the PL‐4 was acid‐labile because of its allyl ether bond. The identity of PL‐4 was confirmed by
Masateru Nishihara +5 more
wiley +1 more source
Biotransformation of metal(loid)s by intestinal microorganisms [PDF]
, 2010 Many metals and metalloids undergo complex biotransformation processes by microorganisms in the environment, namely, Ge, As, Se, Cd, In, Sn, Sb, Te, Hg, Tl, Pb, Bi, and Po.
Diaz-Bone, Roland A, Van de Wiele, Tom
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sRNA41 affects ribosome binding sites within polycistronic mRNAs in Methanosarcina mazei Gö1 [PDF]
, 2018 Several noncoding RNAs potentially involved in nitrogen (N)-regulation have been detected in Methanosarcina mazei, however, targets have been identified only for one of them. Here, we report on the function of sRNA41, highly expressed under N-sufficiency.
Buddeweg, A +3 more
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Microbial Small RNAs – The Missing Link in the Nitrogen Cycle? [PDF]
, 2021 Non-coding small RNAs (sRNAs) regulate a wide range of physiological processes in microorganisms that allow them to rapidly respond to changes in environmental conditions.
Bonete, María-José +6 more
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