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This book discusses the decoding of the lytic mechanism of an -helical pore-forming toxin, YaxAB, composed of two different subunits. Pore-forming toxins (PFTs) are among the most common bacterial toxins. They are produced by a variety of pathogens, which infect a wide range of organisms including plants, insects and humans. Yet the maturation of these particles and the structural changes required for pore formation are still poorly understood for many PFT families. Using a diverse panel of bio...

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfangen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen fur die historische wie auch die disziplingeschichtliche Forschung zur Verfugung, die jeweils im historischen Kontext betrachtet werden mussen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

Sulfur is one of the most versatile elements in life due to its reactivity in different oxidation and reduction states. In phototrophic organisms, the redox properties of sulfur in proteins, and of sulfur-containing metabolites, are particularly important in the interaction between the reductive assimilation processes of photosynthesis and reactive oxygen species that arise as by-products of electron transport chains. Thiol groups in proteins and metabolites are targets of reactive oxygen specie...

Volume 2 "The Proteobacteria." (2004) Don J. Brenner, Noel R. Krieg, James T. Staley (Volume Editors), and George M. Garrity (Editor-in-Chief) with contributions from 339 colleagues. The volume provides descriptions of more than 2000 species in 538 genera that are assigned to the phylum Proteobacteria. This volume is subdivided into three parts. Part A, The Introductory Essays (332 pgs, 76 figures, 37 tables); Part B, The Gammaproteobacteria (1203 pages, 222 figures, and 300 tables); and Part C...

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This book contains a broad survey on the peroxiredoxins. It involves almost all groups that contributed significant insights into the emerging field. Coverage discusses the diverse biological roles of the new protein family in the context of other antioxidant systems like those based on heme or selenium catalysis. In addition, the book highlights related future perspectives.

This volume brings together studies on the differences and profound similarities in the molecular mechanism of virulence between bacteria pathogenic for humans, animals and plants. Topics covered include: host cell recognition and binding, pathogen ingression and invasive mechanism, enzymes, toxins and other pathogenic factors, regulation of virulence genes and signal transduction, and pathogen of host-defence mechanisms.

Staphylococcus spp. and Streptococcus spp. have not only got pathogenic isolates, but also non-pathogenic isolates. Staphylococcus spp. and Streptococcus spp. that are Gram positive cocci are the main pathogens in several infections. Virulence factors such as usual and unusual surface proteins encoded by resistance genes are the main causes of pathogenesis. Multidrug-resistant pathogens that are the main causes of morbidity and mortality worldwide have the ability to synthesize a number of destr...

This book deals with the microorganism Salmonella. This bacterium is well known for a long time, being involved in systemic (typhus and paratyphus infections) and nonsystemic diseases such as food poisoning. Major and minor Salmonellae are widespread worldwide in developing countries and industrialized areas, respectively. In 2015, about 3576 Salmonella strains have been isolated from human infections in Italy. S. typhimurium and S. enteritidis are the most prevalent serotypes and represent 80%...

Staphylococcus aureus strains are an important medical infectious agent that causes a wide range of pathogeneses starting from colonization of the skin and mucosal surface to severe pathogenic effects such as septicemia. The mortality and morbidity from this pathogen are challenging issues for the healthcare premises. Methicillin Resistant Staphylococcus aureus strains (MRSA) are causing severe infections due to the genes that are resistant to several antibiotics including methicillin, aminoglyc...

Our knowledge of the biochemistry and biophysics of dinitrogen fixa- tion has developed rapidly in the 15 years since the first N2-fixing enzyme system was successfully extracted from a bacterium. This peri- od has produced a literature that now describes the N2 fixation reac- tion and the nitrogenase enzyme itself in sophisticated terms, though a detailed reaction mechanism at the chemical level has not yet emerged. It is the purpose of the present monograph to present an in-depth re- view, ana...

A bacteriophage is any one of a number of viruses that infect bacteria. The term is commonly used in its shortened form, phage. Typically, bacteriophages consist of an outer protein hull enclosing genetic material. The genetic material can be ssRNA (single stranded RNA), dsRNA, ssDNA, or dsDNA between 5 and 500 kilo base pairs long with either circular or linear arrangement. Bacteriophages are much smaller than the bacteria they destroy - usually between 20 and 200 nm in size. Phages are estimat...

The U.S. Environmental Protection Agency (EPA) Office of Research and Development is striving to protect human health and the environment from adverse impacts resulting from acts of terror by investigating the effectiveness and applicability of technologies for homeland security (HS)-related applications. EPA has identified detection of pathogenic micro-organisms in environmental samples following a terrorist attack as a critical component of an effective response. Detection of such pathogens wo...

The ability of various microorganisms to attach to surfaces and create biofilms on them is rather a cause of concern for many industries, including for those occupied with food production and processing. Thus, the attachment of bacterial pathogens to food processing equipment is considered as an essential contributing factor in foodborne disease outbreaks, since this may ultimately lead to the contamination of food products. Improperly cleaned surfaces promote soil build-up, and, in the presence...

Includes a description of the Alpha-, Beta-, Delta-, and Epsilonproteabacteria (1256 pages, 512 figures, and 371 tables). This large taxa include many well known medically and environmentally important groups. Especially notable are Acetobacter, Agrobacterium, Aquospirillum, Brucella, Burkholderia, Caulobacter, Desulfovibrio, Gluconobacter, Hyphomicrobium, Leptothrix, Myxococcus, Neisseria, Paracoccus, Propionibacter, Rhizobium, Rickettsia, Sphingomonas, Thiobacillus, Xanthobacter and 268 addit...