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... exhibited even more resistance to CIP than the WT. In cysteine medium, no changes were observed for any strain. Previously, we reported that cysJIH contributes to diminish ROS levels induced by the exposure to antimicrobial agents such as menadione and ceftriaxone by increasing the SOD activity, the ...
... exhibited even more resistance to CIP than the WT. In cysteine medium, no changes were observed for any strain. Previously, we reported that cysJIH contributes to diminish ROS levels induced by the exposure to antimicrobial agents such as menadione and ceftriaxone by increasing the SOD activity, the ...
Defect in neutrophil killing and increased
... define a new family of mammalian pattern recognition molecules. All mammalian and insect PGRPs have C-terminal PGRP domains that are highly conserved from insects to mammals (have up to 69% conserved identity and up to 83% conserved similarity between insects and mammals).6 The remaining N-terminal ...
... define a new family of mammalian pattern recognition molecules. All mammalian and insect PGRPs have C-terminal PGRP domains that are highly conserved from insects to mammals (have up to 69% conserved identity and up to 83% conserved similarity between insects and mammals).6 The remaining N-terminal ...
The interaction between the mucosal immune system and the
... potentially pathogenic and pathogenic bacteria and therewith prevent infections 13. The human colon harbors about 1011 bacteria per gram contents. It is important to realise that over 99.9% of the colonic microflora consists of a stable ecosystem of possibly as many as 400 different species of anaer ...
... potentially pathogenic and pathogenic bacteria and therewith prevent infections 13. The human colon harbors about 1011 bacteria per gram contents. It is important to realise that over 99.9% of the colonic microflora consists of a stable ecosystem of possibly as many as 400 different species of anaer ...
extremely thermophilic microorganisms and their polymer
... enzymes, such as amylolytic and hemicellulolytic enzymes. The purpose of this review is to present the range of morphological and metabolic features among those microorganisms growing from 70oC to 100°C and to indicate potential opportunities for useful applications derived from these features. Key ...
... enzymes, such as amylolytic and hemicellulolytic enzymes. The purpose of this review is to present the range of morphological and metabolic features among those microorganisms growing from 70oC to 100°C and to indicate potential opportunities for useful applications derived from these features. Key ...
Anti-microbial textiles
... Microbes are microscopically small, independent living organisms, they are also called micro-organisms. Micro-organisms encompass bacteria, viruses and fungi (moulds and yeasts). They are single or multi cell organisms which can be pathogens for infectious diseases. What is meant by anti-microbial t ...
... Microbes are microscopically small, independent living organisms, they are also called micro-organisms. Micro-organisms encompass bacteria, viruses and fungi (moulds and yeasts). They are single or multi cell organisms which can be pathogens for infectious diseases. What is meant by anti-microbial t ...
Introduction - Personal homepage directory
... presence of S. mutans in subjects with caries was 63%. S. mutans was found in only 31% of subjects with no caries. S. mutans was associated with dental decay, by their levels in plaque samples. Clayton et al. (2000) tested the effects of penicillin on Endamoeba gingivalis from oral bacterial culture ...
... presence of S. mutans in subjects with caries was 63%. S. mutans was found in only 31% of subjects with no caries. S. mutans was associated with dental decay, by their levels in plaque samples. Clayton et al. (2000) tested the effects of penicillin on Endamoeba gingivalis from oral bacterial culture ...
2. Bacteria and archaea are the two main branches of prokaryote
... nutrients from dead organisms, and parasites, which absorb nutrients from the body fluids of living hosts. • Some of these organisms (such as Lactobacillus) have very exacting nutritional requirements, while others (E. coli) are less specific in their requirements. • With such a diversity of chemohe ...
... nutrients from dead organisms, and parasites, which absorb nutrients from the body fluids of living hosts. • Some of these organisms (such as Lactobacillus) have very exacting nutritional requirements, while others (E. coli) are less specific in their requirements. • With such a diversity of chemohe ...
aureus and Enterococcus faecalis exposed to
... for 1 h, the surface of the bacteria appeared roughened with occasionalboss-like protuberances, and after 4 h most of the bacteria exhibited these processes (fig. 2B). After exposure to daptomycin for 24 h affected cells exhibited grossly altered surfaces and very prominent cleavage sites (fig. 2C). ...
... for 1 h, the surface of the bacteria appeared roughened with occasionalboss-like protuberances, and after 4 h most of the bacteria exhibited these processes (fig. 2B). After exposure to daptomycin for 24 h affected cells exhibited grossly altered surfaces and very prominent cleavage sites (fig. 2C). ...
Anammox bacteria disguised as denitrifiers: nitrate reduction to
... the oceans; still more research is needed to identify the bacteria that mediate this process in nature. Anammox bacteria have been shown to contribute to the loss of fixed nitrogen in many other natural suboxic and anoxic environments (Kuypers et al., 2003; 2005; Risgaard-Petersen et al., 2004; Rysg ...
... the oceans; still more research is needed to identify the bacteria that mediate this process in nature. Anammox bacteria have been shown to contribute to the loss of fixed nitrogen in many other natural suboxic and anoxic environments (Kuypers et al., 2003; 2005; Risgaard-Petersen et al., 2004; Rysg ...
PHL 424 4th S
... The intrinsic antimicrobial activity of natural cephalosporins is low, but the attachment of various R1 and R2 groups (see classification) has yielded drugs of good therapeutic activity and low toxicity Cephalosporins are affected by the same resistance mechanisms as penicillins. However, they t ...
... The intrinsic antimicrobial activity of natural cephalosporins is low, but the attachment of various R1 and R2 groups (see classification) has yielded drugs of good therapeutic activity and low toxicity Cephalosporins are affected by the same resistance mechanisms as penicillins. However, they t ...
Full text PDF (free access)
... The barrier between the intestinal lumen and the mucosal immune system consists of a single-layered epithelium that is covered by gelatinous mucus. In the small intestine, the mucus has only one layer; in the colon with its high bacterial density there are two mucus layers. The mucus layer directly ...
... The barrier between the intestinal lumen and the mucosal immune system consists of a single-layered epithelium that is covered by gelatinous mucus. In the small intestine, the mucus has only one layer; in the colon with its high bacterial density there are two mucus layers. The mucus layer directly ...
Chapter 4 : antibiotics and antiseptics
... resistance varies with the places, that’s at the hospital that this phenomenon of resistance appears the most frequently. ...
... resistance varies with the places, that’s at the hospital that this phenomenon of resistance appears the most frequently. ...
BIO 225 Lab Manual - Bluegrass Community and Technical College
... techniques, the procedures followed by microbiologists and healthcare workers to prevent contamination of cultures from outside sources and to prevent introduction of potentially disease-causing microbes (pathogens) into the human body. The methods for handling previously sterilized materials, for t ...
... techniques, the procedures followed by microbiologists and healthcare workers to prevent contamination of cultures from outside sources and to prevent introduction of potentially disease-causing microbes (pathogens) into the human body. The methods for handling previously sterilized materials, for t ...
Get PDF version - Bioencapsulation Research Group
... cost-effective source of essential fatty acids to enrich Artemia, with potential benefit for marine fish larvae. Another novel approach in aquaculture and water treatment is the use of freeze-dried alginate beads with embedded denitrifiers and a carbon source to achieve sustained denitrification act ...
... cost-effective source of essential fatty acids to enrich Artemia, with potential benefit for marine fish larvae. Another novel approach in aquaculture and water treatment is the use of freeze-dried alginate beads with embedded denitrifiers and a carbon source to achieve sustained denitrification act ...
Applications of Microscopy in Bacteriology
... and seeing things with greater knowledge and insight. Microscopy is based on two major principles: 1) Resolution and resolving power—Resolution and resolving power of a microscope is defined as the minimum distance by which 2 points must be separated in order for them to be perceived as to separate ...
... and seeing things with greater knowledge and insight. Microscopy is based on two major principles: 1) Resolution and resolving power—Resolution and resolving power of a microscope is defined as the minimum distance by which 2 points must be separated in order for them to be perceived as to separate ...
Lesson Overview
... only family on your street. Then, one morning, you open the front door and discover houses and neighbors all around you. Where did all the people come from? What if the answer turned out to be that they had always been there—you just hadn’t seen them? How would your view of the world change? ...
... only family on your street. Then, one morning, you open the front door and discover houses and neighbors all around you. Where did all the people come from? What if the answer turned out to be that they had always been there—you just hadn’t seen them? How would your view of the world change? ...
Lesson Overview
... only family on your street. Then, one morning, you open the front door and discover houses and neighbors all around you. Where did all the people come from? What if the answer turned out to be that they had always been there—you just hadn’t seen them? How would your view of the world change? ...
... only family on your street. Then, one morning, you open the front door and discover houses and neighbors all around you. Where did all the people come from? What if the answer turned out to be that they had always been there—you just hadn’t seen them? How would your view of the world change? ...
Ecological Engineering Microbial carbonate precipitation in
... nitrate in anaerobiosis or microaerophily and (3) the degradation of urea or uric acid in aerobiosis. Another microbial process that leads to an increase of both the pH and the concentration of dissolved inorganic carbon is the utilization of organic acids (Braissant et al., 2002), a process which h ...
... nitrate in anaerobiosis or microaerophily and (3) the degradation of urea or uric acid in aerobiosis. Another microbial process that leads to an increase of both the pH and the concentration of dissolved inorganic carbon is the utilization of organic acids (Braissant et al., 2002), a process which h ...
Interaction of Cationic Peptides with Lipoteichoic Acid and Gram
... amino acids of silk moth cecropin followed by the first 18 amino acids of bee melittin (Table 1). CEME and some of its derivatives have previously been shown to have strong antimicrobial activity against a broad range of gram-negative bacteria (22). In this study, we asked whether CEME and/or its de ...
... amino acids of silk moth cecropin followed by the first 18 amino acids of bee melittin (Table 1). CEME and some of its derivatives have previously been shown to have strong antimicrobial activity against a broad range of gram-negative bacteria (22). In this study, we asked whether CEME and/or its de ...
Mini Review An Overview on Bacterial Motility Detection
... If identification of a bacterium requires detection of the actual number and placement of flagella, special stains or electron microscope preparations are required, as flagella are too minute to be seen in un-stained live preparations with an ordinary light microscope. Often it is sufficient to know ...
... If identification of a bacterium requires detection of the actual number and placement of flagella, special stains or electron microscope preparations are required, as flagella are too minute to be seen in un-stained live preparations with an ordinary light microscope. Often it is sufficient to know ...
Effects of Biocides on antibiotic resistance
... have safety implications. If biocides kill all the bacteria that are reasonably easy to eradicate, the only bacteria left are resistant strains and these are free to grow with no competition from other bacterial populations. It is conceivable that the huge amount of biocides released into the enviro ...
... have safety implications. If biocides kill all the bacteria that are reasonably easy to eradicate, the only bacteria left are resistant strains and these are free to grow with no competition from other bacterial populations. It is conceivable that the huge amount of biocides released into the enviro ...
as a PDF
... phrase ‘‘great plate count anomaly’’ to describe this phenomenon, which has been known to microbiologists for generations. By now there is little doubt that in most cases, the majority of microscopically visualized cells are viable but do not form visible colonies on plates (for reviews, see referen ...
... phrase ‘‘great plate count anomaly’’ to describe this phenomenon, which has been known to microbiologists for generations. By now there is little doubt that in most cases, the majority of microscopically visualized cells are viable but do not form visible colonies on plates (for reviews, see referen ...
The Urinary Tract
... from a UTI at least once during their lifetime (25), leading to 7 million office visits every year with total monetary costs approaching $2 billion (27). The causative agents of UTIs come from different groups of microorganisms such as fungi (Candida albicans), Gramnegative (E. coli, Proteus mirabil ...
... from a UTI at least once during their lifetime (25), leading to 7 million office visits every year with total monetary costs approaching $2 billion (27). The causative agents of UTIs come from different groups of microorganisms such as fungi (Candida albicans), Gramnegative (E. coli, Proteus mirabil ...
The Ecological Role of Type Three Secretion Systems in the
... plant nutrition and health. Hence, molecular communications between bacterial and fungal communities are highly relevant for sustainable soil management (Lemanceau et al., 2016). Soil fungi have recently been implicated in the translocation of a large fraction of the plant photosynthates via hyphal ...
... plant nutrition and health. Hence, molecular communications between bacterial and fungal communities are highly relevant for sustainable soil management (Lemanceau et al., 2016). Soil fungi have recently been implicated in the translocation of a large fraction of the plant photosynthates via hyphal ...
Applied Environmental Microbiology
... nomodulatory effects (146). In plants, root genes induced by rhizospheric bacteria are involved in oxidative and defense responses, in plant secondary metabolism, or in signaling (140). Plants may detect bacterial cyclopeptides through auxin sensing pathways (147). In a more specialized symbiosis, a ...
... nomodulatory effects (146). In plants, root genes induced by rhizospheric bacteria are involved in oxidative and defense responses, in plant secondary metabolism, or in signaling (140). Plants may detect bacterial cyclopeptides through auxin sensing pathways (147). In a more specialized symbiosis, a ...
Biofilm
A biofilm is any group of microorganisms in which cells stick to each other on a surface. These adherent cells are frequently embedded within a self-produced matrix of extracellular polymeric substance (EPS). Biofilm extracellular polymeric substance, which is also referred to as slime (although not everything described as slime is a biofilm), is a polymeric conglomeration generally composed of extracellular DNA, proteins, and polysaccharides. Biofilms may form on living or non-living surfaces and can be prevalent in natural, industrial and hospital settings. The microbial cells growing in a biofilm are physiologically distinct from planktonic cells of the same organism, which, by contrast, are single-cells that may float or swim in a liquid medium.Microbes form a biofilm in response to many factors, which may include cellular recognition of specific or non-specific attachment sites on a surface, nutritional cues, or in some cases, by exposure of planktonic cells to sub-inhibitory concentrations of antibiotics. When a cell switches to the biofilm mode of growth, it undergoes a phenotypic shift in behavior in which large suites of genes are differentially regulated.