Determination of the Gram Type Using the Reaction
... bacteria in tissues (Gram, 1884). It was won established that this method divided bacteria into two groups: those which retained the stain (Gram-positive) and those which could be decolorized with alcohol (Gram-negative). Several variations have been published which should lead to more reliable stai ...
... bacteria in tissues (Gram, 1884). It was won established that this method divided bacteria into two groups: those which retained the stain (Gram-positive) and those which could be decolorized with alcohol (Gram-negative). Several variations have been published which should lead to more reliable stai ...
Lesson: An Overview of Scope of Microbiology Lesson Developer
... Phycology is the study of algae (singular-alga), which are microorganisms containing chlorophyll and are photosynthetic. They occur in almost all habitats. They exist in varied forms, ranging from small, single-celled (flagellates) to complex multicellular (kelps). Algae have great economic importan ...
... Phycology is the study of algae (singular-alga), which are microorganisms containing chlorophyll and are photosynthetic. They occur in almost all habitats. They exist in varied forms, ranging from small, single-celled (flagellates) to complex multicellular (kelps). Algae have great economic importan ...
Anders Nilsson
... phages can be applied = 10-13 moles. → It is essential that the treatment results in a productive infection ...
... phages can be applied = 10-13 moles. → It is essential that the treatment results in a productive infection ...
Probiotics - Baseline of Health
... (Note: the same battle is fought in the vaginal tract, the nasal cavities, and in the mouth.) The formal battle, however, is not decisively won until around age 6, at which point your immune system is fully trained. If for any reason your intestinal flora are severely compromised (such as being sub ...
... (Note: the same battle is fought in the vaginal tract, the nasal cavities, and in the mouth.) The formal battle, however, is not decisively won until around age 6, at which point your immune system is fully trained. If for any reason your intestinal flora are severely compromised (such as being sub ...
Title Nanofiltration and reverse osmosis surface topographical
... challenging [21], since these are usually in the order of several micrometres in width and depth. As such, defects can be easily overlooked and excluded during AFM studies, in which scanning raster areas are usually performed at random small areas at a time [15, 18]. The presence of large surface de ...
... challenging [21], since these are usually in the order of several micrometres in width and depth. As such, defects can be easily overlooked and excluded during AFM studies, in which scanning raster areas are usually performed at random small areas at a time [15, 18]. The presence of large surface de ...
Determination of the Gram Type Using the Reaction Between
... bacteria in tissues (Gram, 1884). It was won established that this method divided bacteria into two groups: those which retained the stain (Gram-positive) and those which could be decolorized with alcohol (Gram-negative). Several variations have been published which should lead to more reliable stai ...
... bacteria in tissues (Gram, 1884). It was won established that this method divided bacteria into two groups: those which retained the stain (Gram-positive) and those which could be decolorized with alcohol (Gram-negative). Several variations have been published which should lead to more reliable stai ...
Competition with pathogens in mucosal colonization
... OP1 erythrocytes, the presence of extracellular slime material and their high degree of hydrophobicity appeared to be related to one another. The most surface-active strains of Lactobacillus adhered to both enterocytes and to vaginal cells well. These features seem to be closely related; however, di ...
... OP1 erythrocytes, the presence of extracellular slime material and their high degree of hydrophobicity appeared to be related to one another. The most surface-active strains of Lactobacillus adhered to both enterocytes and to vaginal cells well. These features seem to be closely related; however, di ...
A New Laboratory Cultivation of Paramecium bursaria Using Non
... The aim of the present research was to examine non-pathogenic bacteria strains as components of the medium for Paramecium bursaria. The paramecia were incubated on lettuce infusions bacterized with different bacteria strains: Bacillus subtilis DSM 10, Bacillus megaterium DSM 32, Escherichia coli DSM ...
... The aim of the present research was to examine non-pathogenic bacteria strains as components of the medium for Paramecium bursaria. The paramecia were incubated on lettuce infusions bacterized with different bacteria strains: Bacillus subtilis DSM 10, Bacillus megaterium DSM 32, Escherichia coli DSM ...
Infection of chronic wounds
... This module will address all these questions, but the conclusion remains as follows: a diagnosis of infection of a chronic wound is, above all, a clinical diagnosis, made on the basis of early identification criteria, which, when combined, are highly suggestive of infection. This is the case with in ...
... This module will address all these questions, but the conclusion remains as follows: a diagnosis of infection of a chronic wound is, above all, a clinical diagnosis, made on the basis of early identification criteria, which, when combined, are highly suggestive of infection. This is the case with in ...
original article multiple antibiotic resistance (mar)
... in bacteria is most commonly associated with the presence of plasmids which contain one or more resistance genes, each encoding a single antibiotic resistance phenotype [9]. Emergence of antibiotic resistance in P. aeruginosa resulting in severe adverse outcomes had been on the rise. In the USA annu ...
... in bacteria is most commonly associated with the presence of plasmids which contain one or more resistance genes, each encoding a single antibiotic resistance phenotype [9]. Emergence of antibiotic resistance in P. aeruginosa resulting in severe adverse outcomes had been on the rise. In the USA annu ...
Survival strategies of two small marine ciliates and their role in
... ABSTRACT: Urcmema sp. of ca 12 X 5 p m and Euplotes sp. ca 20 X 10 pm were isolated from surface waters of the English Channel. The rapidly motile Uronerna sp. has a relative growth rate of 3.32 d-' and responds rapidly to the presence of bacterial food with a doubling time of only 5.01 h. Its morta ...
... ABSTRACT: Urcmema sp. of ca 12 X 5 p m and Euplotes sp. ca 20 X 10 pm were isolated from surface waters of the English Channel. The rapidly motile Uronerna sp. has a relative growth rate of 3.32 d-' and responds rapidly to the presence of bacterial food with a doubling time of only 5.01 h. Its morta ...
QUORUM SENSING: Cell-to-Cell Communication in Bacteria
... Bacteria communicate with one another using chemical signal molecules. As in higher organisms, the information supplied by these molecules is critical for synchronizing the activities of large groups of cells. In bacteria, chemical communication involves producing, releasing, detecting, and respondi ...
... Bacteria communicate with one another using chemical signal molecules. As in higher organisms, the information supplied by these molecules is critical for synchronizing the activities of large groups of cells. In bacteria, chemical communication involves producing, releasing, detecting, and respondi ...
Bacterial rheotaxis
... channel top and bottom surfaces were responsible for the generation of shear, because they imposed no-slip conditions on the flow, but were sufficiently distant from the bacteria not to cause any hydrodynamic interaction. Therefore, shear from any origin —whether surface related or caused in the bulk ...
... channel top and bottom surfaces were responsible for the generation of shear, because they imposed no-slip conditions on the flow, but were sufficiently distant from the bacteria not to cause any hydrodynamic interaction. Therefore, shear from any origin —whether surface related or caused in the bulk ...
Role of Soil Bacteria: Update and Revision
... Bacteria are the smallest and most hardy microbe in the soil and can survive under harsh or changing soil conditions. Bacteria are only 20–30% efficient at recycling carbon, have a high N content (10 to 30% N, 3–10 C:N ratio), a lower C content, and a short life span. There are basically four functi ...
... Bacteria are the smallest and most hardy microbe in the soil and can survive under harsh or changing soil conditions. Bacteria are only 20–30% efficient at recycling carbon, have a high N content (10 to 30% N, 3–10 C:N ratio), a lower C content, and a short life span. There are basically four functi ...
Lesson 28. Pseudomonas
... Pseudomonas is a bacteria mostly saprophytic in nature, is found in soil, water and other moist environment. It has emerged as an important cause of Health Care Associated and Opportunistic Infections. Most of the clinical isolates of Pseudomonas are resistant to many antibiotics. Pseudomonas aerugi ...
... Pseudomonas is a bacteria mostly saprophytic in nature, is found in soil, water and other moist environment. It has emerged as an important cause of Health Care Associated and Opportunistic Infections. Most of the clinical isolates of Pseudomonas are resistant to many antibiotics. Pseudomonas aerugi ...
Lesson 36. Nonsporing Anaerobes
... Many anaerobic bacteria are pathogenic for human beings, and they outnumber aerobes in many habitats. They vary widely in the degree of anaerobiosis required for growth. They are classified on the basis of morphology and gram staining. Bacteroides species are the most commonly isolated pathogens amo ...
... Many anaerobic bacteria are pathogenic for human beings, and they outnumber aerobes in many habitats. They vary widely in the degree of anaerobiosis required for growth. They are classified on the basis of morphology and gram staining. Bacteroides species are the most commonly isolated pathogens amo ...
Brock Biology of Microorganisms, 11e (Madigan/Martinko)
... 45) Lithotrophs that oxidize elemental sulfur include both autotrophs and heterotrophs. Answer: TRUE 46) Cell yields are higher for methane oxidizers that employ the serine pathway for assimilation of carbon compounds than for those using the ribulose monophosphate pathway. Answer: FALSE 47) Organis ...
... 45) Lithotrophs that oxidize elemental sulfur include both autotrophs and heterotrophs. Answer: TRUE 46) Cell yields are higher for methane oxidizers that employ the serine pathway for assimilation of carbon compounds than for those using the ribulose monophosphate pathway. Answer: FALSE 47) Organis ...
Pathogenesis of E. coli
... produces dramatic effects in the ultrastructure of the cells resulting in rearrangements of actin in the vicinity of adherent bacteria. The phenomenon is sometimes called "attachment and effacing" of cells. EPEC strains are said to be "moderatelyinvasive", meaning they are not as invasive as Shigell ...
... produces dramatic effects in the ultrastructure of the cells resulting in rearrangements of actin in the vicinity of adherent bacteria. The phenomenon is sometimes called "attachment and effacing" of cells. EPEC strains are said to be "moderatelyinvasive", meaning they are not as invasive as Shigell ...
Gram`s staining - Micro-Rao
... Propionibacterium have cell walls particularly sensitive to breakage during cell division, resulting in Gram-negative staining of these cells. In cultures of Bacillus, and Clostridium a decrease in peptidoglycan thickness during cell growth may cause some of them to appear Gram negative. Certain gro ...
... Propionibacterium have cell walls particularly sensitive to breakage during cell division, resulting in Gram-negative staining of these cells. In cultures of Bacillus, and Clostridium a decrease in peptidoglycan thickness during cell growth may cause some of them to appear Gram negative. Certain gro ...
Electrocardioqraphic criteria for predicting the site of coronary artery
... In this study in vitro potencies of some antibiotics were compared singly and in combination with probiotic released by Lactobacillus acidophilus isolated from local yoghurt against multi-drugs resistance Pseudomonas aeruginosa. Doxycycline, chloramphenicol and ciprofloxacin were randomly selected f ...
... In this study in vitro potencies of some antibiotics were compared singly and in combination with probiotic released by Lactobacillus acidophilus isolated from local yoghurt against multi-drugs resistance Pseudomonas aeruginosa. Doxycycline, chloramphenicol and ciprofloxacin were randomly selected f ...
Promiscuous and specific bacterial symbiont acquisition in the
... strain N (hereafter named Nuclearia thermophila strain N) which harboured the bacterial ectosymbiont (Paucibacter toxinivorans) nicely arranged inside the glycocalyx (Dirren et al. 2014). The interaction between N. thermophila strain N and this prokaryote seemed to be specific and stable. Multicellu ...
... strain N (hereafter named Nuclearia thermophila strain N) which harboured the bacterial ectosymbiont (Paucibacter toxinivorans) nicely arranged inside the glycocalyx (Dirren et al. 2014). The interaction between N. thermophila strain N and this prokaryote seemed to be specific and stable. Multicellu ...
European workshop on Phenotype MicroArrays
... Phenotypes provide a very useful way to describe biological differences between cells. They reflect both genetic and epigenetic differences among cells. Phenotype MicroArray (PM) technology was developed to provide scientists with a simple and efficient way to test nearly 2,000 phenotypes of a micro ...
... Phenotypes provide a very useful way to describe biological differences between cells. They reflect both genetic and epigenetic differences among cells. Phenotype MicroArray (PM) technology was developed to provide scientists with a simple and efficient way to test nearly 2,000 phenotypes of a micro ...
Ecology and diversity of anaerobic alkali
... The spore-forming Clostridium paradoxum and the non-spore-forming C. thermoalkaliphilum are the most alkaliphilic (pHmax25C of 11.1) anaerobic thermophiles. Surprisingly, they were isolated from various mesobiotic sewage facilities across the USA and from sewage plants from three continents (unpubl. ...
... The spore-forming Clostridium paradoxum and the non-spore-forming C. thermoalkaliphilum are the most alkaliphilic (pHmax25C of 11.1) anaerobic thermophiles. Surprisingly, they were isolated from various mesobiotic sewage facilities across the USA and from sewage plants from three continents (unpubl. ...
Calcite precipitation induced by bacteria and bacterially produced
... the relevant global carbon cycle5. The importance of selective cementation has been widely recognized in civil engineering, which is also related to calcite precipitation. Based on the importance of the above processes, studies on calcite precipitation have attracted much attention6–8. It has been k ...
... the relevant global carbon cycle5. The importance of selective cementation has been widely recognized in civil engineering, which is also related to calcite precipitation. Based on the importance of the above processes, studies on calcite precipitation have attracted much attention6–8. It has been k ...
Types of Anaerobes
... Inhabitant of anaerobic infections: Today they are found in soil, fresh and salt water, and in normal flora of humans and animals Mucosal surfaces such as linings of oral cavity, GI tract, and GU tract Respiratory Tract – 90% of bacteria in the mouth are anaerobes If mucosal surfaces are di ...
... Inhabitant of anaerobic infections: Today they are found in soil, fresh and salt water, and in normal flora of humans and animals Mucosal surfaces such as linings of oral cavity, GI tract, and GU tract Respiratory Tract – 90% of bacteria in the mouth are anaerobes If mucosal surfaces are di ...
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.