abstract：:Dimethylsulfoniopropionate (DMSP) is a metabolite produced primarily by marine phytoplankton and is the main precursor to the climatically important gas dimethylsulfide (DMS). DMS is released upon bacterial catabolism of DMSP, but it is not the only possible fate of DMSP sulfur. An alternative demethylation/demethiola...

journal_title：Frontiers in microbiology

authors： Reisch CR,Moran MA,Whitman WB

更新日期：2011-08-12 00:00:00

abstract：:Type IV secretion systems (T4SSs) play a central role in the pathogenicity of many important pathogens, including Agrobacterium tumefaciens, Helicobacter pylori, and Legionella pneumophila. The T4SSs are related to bacterial conjugation systems, and are classified into two subgroups, type IVA (T4ASS) and type IVB (T4B...

journal_title：Frontiers in microbiology

authors： Nagai H,Kubori T

更新日期：2011-06-27 00:00:00

abstract：:Spatial patterns of marine Synechococcus diversity across ocean domains have been reported on extensively. However, much less is known of seasonal and multiannual patterns of change in Synechococcus community composition. Here we report on the genotypic diversity of Synechococcus populations in the Gulf of Aqaba, Nort...

journal_title：Frontiers in microbiology

authors： Post AF,Penno S,Zandbank K,Paytan A,Huse SM,Welch DM

更新日期：2011-06-20 00:00:00

abstract：:Five sublacustrine thermal spring locations from 1 to 109 m water depth in Yellowstone Lake were surveyed by 16S ribosomal RNA gene sequencing in relation to their chemical composition and dark CO(2) fixation rates. They harbor distinct chemosynthetic bacterial communities, depending on temperature (16-110°C) and elec...

journal_title：Frontiers in microbiology

authors： Yang T,Lyons S,Aguilar C,Cuhel R,Teske A

更新日期：2011-06-13 00:00:00

abstract：:Salmonella is a primary cause of enteric diseases in a variety of animals. During its evolution into a pathogenic bacterium, Salmonella acquired an elaborate regulatory network that responds to multiple environmental stimuli within host animals and integrates them resulting in fine regulation of the virulence program....

journal_title：Frontiers in microbiology

authors： McDermott JE,Yoon H,Nakayasu ES,Metz TO,Hyduke DR,Kidwai AS,Palsson BO,Adkins JN,Heffron F

更新日期：2011-06-02 00:00:00

abstract：:The lumenal surfaces of human body are lined by a monolayer of epithelia that together with mucus secreting cells and specialized immune cells form the mucosal barrier. This barrier is one of the most fundamental components of the innate immune system, protecting organisms from the vast environmental microbiota. The m...

journal_title：Frontiers in microbiology

authors： Engel J,Eran Y

更新日期：2011-05-26 00:00:00

abstract：:Probiotic bacteria, according to the definition adopted by the World Health Organization in 2002, are live microorganisms, which when administered in adequate amounts confer a health benefit to the host. Recent studies show that the same probiotic strain produced and/or preserved under different storage conditions, ma...

journal_title：Frontiers in microbiology

authors： Vinderola G,Binetti A,Burns P,Reinheimer J

更新日期：2011-05-03 00:00:00

abstract：:Salmonella enterica serotypes are invasive enteric pathogens spread through fecal contamination of food and water sources, and represent a constant public health threat around the world. The symptoms associated with salmonellosis and typhoid disease are largely due to the host response to invading Salmonella, and to t...

journal_title：Frontiers in microbiology

authors： Hallstrom K,McCormick BA

更新日期：2011-04-29 00:00:00

abstract：:The facultative intracellular pathogen Legionella pneumophila replicates in free-living amoebae and macrophages within a distinct compartment, the "Legionella-containing vacuole" (LCV). LCV formation involves phosphoinositide (PI) glycerolipids, which are key factors controlling vesicle trafficking pathways and membra...

journal_title：Frontiers in microbiology

authors： Hilbi H,Weber S,Finsel I

更新日期：2011-04-27 00:00:00

abstract：BACKGROUND:The thermoacidophilic and chemolithotrophic archaeon Acidianus ambivalens is routinely grown with sulfur and CO(2)-enriched air. We had described a membrane-bound, tetrathionate (TT) forming thiosulfate:quinone oxidoreductase. Here we describe the first TT hydrolase (TTH) from Archaea. RESULTS:A. ambivalens...

journal_title：Frontiers in microbiology

authors： Protze J,Müller F,Lauber K,Naß B,Mentele R,Lottspeich F,Kletzin A

更新日期：2011-04-25 00:00:00

abstract：:Lipopolysaccharide-deficient mutants of smooth Brucella species (rough mutants) have been shown to arise spontaneously in culture. However, in situ analysis of Brucella infected macrophages using antibody directed against O-polysaccharide suggested a loss of reactivity of Brucella consistent with the appearance of rou...

journal_title：Frontiers in microbiology

authors： Turse JE,Pei J,Ficht TA

更新日期：2011-03-23 00:00:00

abstract：:Plant defensins are active against plant and human pathogenic fungi (such as Candida albicans) and baker's yeast. However, they are non-toxic to human cells, providing a possible source for treatment of fungal infections. In this study, we characterized the mode of action of the antifungal plant defensin HsAFP1 from c...

journal_title：Frontiers in microbiology

authors： Aerts AM,Bammens L,Govaert G,Carmona-Gutierrez D,Madeo F,Cammue BP,Thevissen K

更新日期：2011-03-16 00:00:00

abstract：:Trachomatous trichiasis (TT) caused by repeated or chronic ocular infection with Chlamydia trachomatis is the result of a pro-fibrotic ocular immune response. At the conjunctiva, the increased expression of both inflammatory (IL1B, TNF) and regulatory cytokines (IL10) have been associated with adverse clinical outcome...

journal_title：Frontiers in microbiology

authors： Gall A,Horowitz A,Joof H,Natividad A,Tetteh K,Riley E,Bailey RL,Mabey DC,Holland MJ

更新日期：2011-02-10 00:00:00

abstract：:Francisella tularensis is an intracellular pathogen that can cause severe disease in a wide range of mammalian hosts. Primarily residing in host macrophages, F. tularensis escapes phagosomal degradation, and replicates in the macrophage cytosol. The macrophage uses a series of pattern recognition receptors to detect c...

journal_title：Frontiers in microbiology

authors： Jones JW,Broz P,Monack DM

更新日期：2011-02-03 00:00:00

abstract：:Francisella tularensis is the causative agent of a spectrum of diseases collectively known as tularemia. The extreme virulence of the pathogen in humans, combined with the low infectious dose and the ease of dissemination by aerosol have led to concerns about its abuse as a bioweapon. Until recently, nothing was known...

journal_title：Frontiers in microbiology

authors： Kilmury SL,Twine SM

更新日期：2011-01-07 00:00:00

abstract：:Burkholderia pseudomallei is the Gram-negative bacterial pathogen responsible for the disease melioidosis. B. pseudomallei establishes disease in susceptible individuals through multiple routes of infection, all of which may proceed to a septicemic disease associated with a high mortality rate. B. pseudomallei opportu...

journal_title：Frontiers in microbiology

authors： Warawa JM

更新日期：2010-12-29 00:00:00

abstract：:Respiratory viruses such as parainfluenza virus (PIV) in individuals with certain genetic predispositions in early life are associated with the induction of wheezing, which can progress to the development of asthma. It has been suggested that aberrant production of various cytokines due to viral infection are associat...

journal_title：Frontiers in microbiology

authors： Yoshizumi M,Kimura H,Okayama Y,Nishina A,Noda M,Tsukagoshi H,Kozawa K,Kurabayashi M

更新日期：2010-11-15 00:00:00

abstract：:The Gram negative bacterium Yersinia pestis can infect humans by multiple routes to cause plague. Three plague pandemics have occurred and Y. pestis has been linked to biowarfare in the past. The continued risk of plague as a bioweapon has prompted increased research to understand Y. pestis pathogenesis and develop ne...

journal_title：Frontiers in microbiology

authors： Lawrenz MB

更新日期：2010-11-04 00:00:00

abstract：:RNA silencing mediated by microRNAs (miRNAs) is a recently discovered gene regulatory mechanism involved in various aspects of biology, such as development, cell differentiation and proliferation, and innate immunity against viral infections. miRNAs, which are a class of small (21-25 nucleotides) RNAs, target messenge...

journal_title：Frontiers in microbiology

authors： Tsunetsugu-Yokota Y,Yamamoto T

更新日期：2010-10-13 00:00:00