An aerobic organism or aerobe is an organism that can survive and grow in an oxygenated environment. Some anaerobes react negatively or even die if oxygen is present.
Presence and Stereospecificity of Citrate Synthase in Anaerobic Bacteria* | Biochemistry
When an organism is able to survive in both oxygen and anaerobic environments, the use of the Pasteur effect can distinguish between facultative anaerobes and aerotolerant organisms. If the organism is using fermentation in an anaerobic environment, the addition of oxygen will cause facultative anaerobes to suspend fermentation and begin using oxygen for respiration. Aerotolerant organisms must continue fermentation in the presence of oxygen.
- Biochemistry and Physiology of Anaerobic Bacteria | Lars G. Ljungdahl | Springer;
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A good example is the oxidation of glucose a monosaccharide in aerobic respiration. This article is distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use and redistribution provided that the original author and source are credited.
Article citation count generated by polling the highest count across the following sources: Crossref , PubMed Central , Scopus. Some anaerobic bacteria use insoluble minerals as terminal electron acceptors and discovering the ways in which electrons move through the membrane barrier to the exterior acceptor forms an active field of research with implications for both bacterial physiology and bioenergy. A previous study suggested that Shewanella oneidensis MR-1 utilizes a small, polar, redox active molecule that serves as an electron shuttle between the bacteria and insoluble acceptors, but the shuttle itself has never been identified.
Through isolation and synthesis, we identify it as ACNQ 2-aminocarboxy-1,4-naphthoquinone , a soluble analog of menaquinone.
ACNQ is derived from DHNA 1,4-dihydroxynaphthoic acid in a non-enzymatic process that frustrated genetic approaches to identify the shuttle. Cited 0 Views Annotations Open annotations. The current annotation count on this page is being calculated. Cite this article as: eLife ;8:e doi: Figure 1. Download asset Open asset. Lactococcus lactis catalyses electricity generation at microbial fuel cell anodes via excretion of a soluble quinone S Freguia M Masuda S Tsujimura K Kano Bioelectrochemistry 76 — Cryptic biogeochemical cycles: unravelling hidden redox reactions A Kappler C Bryce Environmental Microbiology 19 — Biotechnological aspects of microbial extracellular electron transfer S Kato Microbes and Environments 30 — Is there a specific ecological niche for electroactive microorganisms?
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Bacterial manganese reduction and growth with manganese oxide as the sole electron acceptor CR Myers KH Nealson Science — Moreover, anaerobic bacteria seem to be more efficient than their aerobic counterparts in removing halogen atoms from polyhalogenated compounds. Thus, anaerobic dehalogenation can be considered as a promising means for bioremediation treatments of persistently polluted environments.
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In this line, identification of pure strains capable of dehalogenation will give important information about the diversity of organisms implicated in this process and also fundamental explanations of the diverse biochemical mechanisms involved. In light of these considerations, we chose to focus this review on the physiological descriptions, dechlorination activities, phylogenetic diversity, and potential biotechnological applications of these pure anaerobic strains capable of dehalogenation.
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Spiros N. Agathos Corresponding Author E-mail address: agathos gebi. Telephone: 32—10—47 36 Tools Request permission Export citation Add to favorites Track citation. Share Give access Share full text access.
Cultural, Physiological, and Biochemical Identification of Actinobacteria
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