Bacteriophages: antibacterials with a future?
... Rich [17], describing it as the smegma bacillus, citing it as an example of a non-pathogenic acidfast bacillus repeatedly found not only in man but other animals. He mentions that injected into the body in appropriate numbers, these non-pathogenic acid-fast bacilli incite a mononuclear-like reaction ...
... Rich [17], describing it as the smegma bacillus, citing it as an example of a non-pathogenic acidfast bacillus repeatedly found not only in man but other animals. He mentions that injected into the body in appropriate numbers, these non-pathogenic acid-fast bacilli incite a mononuclear-like reaction ...
Fewidobacterium gondwanense sp. nov., a New Thermophilic
... swellings ranged from 1 to 4 pm in diameter (Fig. la). Occasionally, giant spheres consisting of membrane-bound structures containing two or more cells and ranging in diameter from 5 to 8 km were also observed. Phase-contrast microscopy of cultures grown at different temperatures and pH values did n ...
... swellings ranged from 1 to 4 pm in diameter (Fig. la). Occasionally, giant spheres consisting of membrane-bound structures containing two or more cells and ranging in diameter from 5 to 8 km were also observed. Phase-contrast microscopy of cultures grown at different temperatures and pH values did n ...
ch_09_study guide
... stable during storage, harmless to humans, and effective against all types of microbes. Because no single method or agent meets all these criteria, scientists consider several factors when evaluating methods and agents. Factors Affecting the Efficacy of Antimicrobial Methods One factor affecting the ...
... stable during storage, harmless to humans, and effective against all types of microbes. Because no single method or agent meets all these criteria, scientists consider several factors when evaluating methods and agents. Factors Affecting the Efficacy of Antimicrobial Methods One factor affecting the ...
Microbiology
... Most antibiotics are produced from molds, but a few are produced from bacteria. • Bacteriocidal- kills bacteria • Bacteriostatic- drug inhibits a bacteria’s growth but does not kill the bacteria • Antibiotic resistance- the aquired ability for a bacteria to grow in the presence of an antibiotic. • A ...
... Most antibiotics are produced from molds, but a few are produced from bacteria. • Bacteriocidal- kills bacteria • Bacteriostatic- drug inhibits a bacteria’s growth but does not kill the bacteria • Antibiotic resistance- the aquired ability for a bacteria to grow in the presence of an antibiotic. • A ...
MICROBIOLOGY PRACTICAL GUIDE (A) 2010
... − An all-purpose medium, such as Tryptic Soy Agar, supports the growth of most bacteria cultured in the laboratory. They do not contain any special additives. − Selective media enhance the growth of certain organisms while inhibiting the growth of others due to the inclusion of particular substrate. ...
... − An all-purpose medium, such as Tryptic Soy Agar, supports the growth of most bacteria cultured in the laboratory. They do not contain any special additives. − Selective media enhance the growth of certain organisms while inhibiting the growth of others due to the inclusion of particular substrate. ...
Prevention of Drug Access to Bacterial Targets: Permeability
... Most Gram-positive bacteria are surrounded by a thick peptidoglycan cell wall (Fig. 1). This structure, although mechanically strong, appears to offer little resistance to the diffusion of small molecules such as antibiotics, because its meshwork is too coarse (5). In contrast, Gram-negative bacteri ...
... Most Gram-positive bacteria are surrounded by a thick peptidoglycan cell wall (Fig. 1). This structure, although mechanically strong, appears to offer little resistance to the diffusion of small molecules such as antibiotics, because its meshwork is too coarse (5). In contrast, Gram-negative bacteri ...
Bacterial Profile Associated with Appendicitis
... (9.9%), Citrobacter freundii 7 (6.3%), Salmonella typhi 5 (4.5%), Proteus mirabilis 5 (4.5%), Enterobacter aerogenesa 4 (3.6%), Peptodtreptococcus 2 (1.8%), Staphylococcus aureus 1 (0.9%) and Clostridium perfringns 1 (0.9%). Mixed cultures were detected in 21 cases (Full presentation for this data i ...
... (9.9%), Citrobacter freundii 7 (6.3%), Salmonella typhi 5 (4.5%), Proteus mirabilis 5 (4.5%), Enterobacter aerogenesa 4 (3.6%), Peptodtreptococcus 2 (1.8%), Staphylococcus aureus 1 (0.9%) and Clostridium perfringns 1 (0.9%). Mixed cultures were detected in 21 cases (Full presentation for this data i ...
ISOLATION AND CHARACTERIZATION OF FREE
... suspensions were filtrated and negatively stained as described by Nugent and Cole (1977). Photographs were taken with a Model Beckman 1010 transmission electron microscope at the Regional Center for Mycology and Biotechnology, AlAzhar University, Cairo, Egypt. PCR isolation of 16S rRNA gene and its ...
... suspensions were filtrated and negatively stained as described by Nugent and Cole (1977). Photographs were taken with a Model Beckman 1010 transmission electron microscope at the Regional Center for Mycology and Biotechnology, AlAzhar University, Cairo, Egypt. PCR isolation of 16S rRNA gene and its ...
Microbial Evolution and Diversity
... In contrast to the gram-positive bacteria, gram-negative bacteria and archaea fall into many different phylogenetic groups, including peptidoglycan-containing types and non–peptidoglycan-containing types that are bacteria as well as archaea. Therefore, gram-negative organisms are very diverse phylog ...
... In contrast to the gram-positive bacteria, gram-negative bacteria and archaea fall into many different phylogenetic groups, including peptidoglycan-containing types and non–peptidoglycan-containing types that are bacteria as well as archaea. Therefore, gram-negative organisms are very diverse phylog ...
Nitrogen Cycle in Aquaponics
... Nitrogen cycle and Aquaponics • The Nitrogen cycle is the most significant process within aquaponics. It is responsible for the conversion of fish waste into nutrients for the plants. • Without this process, the water quality would deteriorate rapidly and become toxic to both the fish and plants in ...
... Nitrogen cycle and Aquaponics • The Nitrogen cycle is the most significant process within aquaponics. It is responsible for the conversion of fish waste into nutrients for the plants. • Without this process, the water quality would deteriorate rapidly and become toxic to both the fish and plants in ...
Antimicrobial Activity and Fingerprint Patterns of Some Pathogenic
... Antibacterial activity The agar well diffusion method was used to determine the antibacterial activity of the extracted oils [15] and [16]. For bioassay a bacterial suspension in sterile normal saline was prepared (equally 0.5 McFarland). Six millimeter diameter wells were punched into the Muller Hi ...
... Antibacterial activity The agar well diffusion method was used to determine the antibacterial activity of the extracted oils [15] and [16]. For bioassay a bacterial suspension in sterile normal saline was prepared (equally 0.5 McFarland). Six millimeter diameter wells were punched into the Muller Hi ...
Selective Renal and GI conditions
... – More common in women than men; shorter female urethra, and, in young sexually active women, sexual intercourse promotes transfer of bacteria from urethra to bladder – Common in older men, because enlarged prostate interferes with complete bladder emptying ...
... – More common in women than men; shorter female urethra, and, in young sexually active women, sexual intercourse promotes transfer of bacteria from urethra to bladder – Common in older men, because enlarged prostate interferes with complete bladder emptying ...
Synergic effect of the use of anthrax and dental microbial plaque
... toxin receptor (ATR) on cell surfaces and forms a proteinreceptor complex that binds lethal factor (LF) and edema factor (EF). The toxins enter the cell and ...
... toxin receptor (ATR) on cell surfaces and forms a proteinreceptor complex that binds lethal factor (LF) and edema factor (EF). The toxins enter the cell and ...
Secondary bacterial infections - Journal of Medical Microbiology
... of secondarily infected skin lesions and the potential for bacterial synergy between the different microbial isolates. Several studies have documented the synergic effect of mixtures of aerobic and anaerobic bacteria in experimental infections [12, 13]. Various hypotheses have been proposed to expla ...
... of secondarily infected skin lesions and the potential for bacterial synergy between the different microbial isolates. Several studies have documented the synergic effect of mixtures of aerobic and anaerobic bacteria in experimental infections [12, 13]. Various hypotheses have been proposed to expla ...
Evolutionary Cell Biology of the eukaryotic endomembrane system
... origin, tempo and mode. Intermediary state might have been a non-differentiated, multi-functional network of tubules and vesicles ...
... origin, tempo and mode. Intermediary state might have been a non-differentiated, multi-functional network of tubules and vesicles ...
Clostridium botulinum
... • Gram positive, rod shaped bacterium • Produces neurotoxins that cause muscular paralysis • Component in Botox • Obligate anaerobe • Forms endospores • Often found in soil • Genome size: 3.89 Mb • Lethal in small amounts • 8 types of botulism – Only A, B, and E are forms of human botulism ...
... • Gram positive, rod shaped bacterium • Produces neurotoxins that cause muscular paralysis • Component in Botox • Obligate anaerobe • Forms endospores • Often found in soil • Genome size: 3.89 Mb • Lethal in small amounts • 8 types of botulism – Only A, B, and E are forms of human botulism ...
LABORATORY ASSESSMENT OF ANAEROBIC BACTERIA
... Normal anaerobic flora cause most anaerobic infections. Also, many anaerobic infections are polymicrobial, which means that cultures grow multiple species of bacteria. These 2 factors can make it hard to determine whether an anaerobic isolate is a contaminant, a contributor to infection along with o ...
... Normal anaerobic flora cause most anaerobic infections. Also, many anaerobic infections are polymicrobial, which means that cultures grow multiple species of bacteria. These 2 factors can make it hard to determine whether an anaerobic isolate is a contaminant, a contributor to infection along with o ...
7 Science Secrets About Bacteria and Weight Loss
... Well, according to research conducted by a team at the University of Illinois at Urbana Champaign, eating fiber-enriched snack bars may do the job almost as well. Kelly Swanson, a Professor of nutrition, led a team which worked with 20 healthy men. A control group ate a snack bar with no fiber conte ...
... Well, according to research conducted by a team at the University of Illinois at Urbana Champaign, eating fiber-enriched snack bars may do the job almost as well. Kelly Swanson, a Professor of nutrition, led a team which worked with 20 healthy men. A control group ate a snack bar with no fiber conte ...
Implementation of a Rapid Microarray Assay for the Detection of
... Resistance Determinants: Assessing Performance in a Clinical Laboratory in Bulgaria Encho Savov¹, Angelina Trifonova¹, Iva Todorova¹, Maya Borissova¹, Ivanka Gergova¹, Elena Kioseva¹ and ...
... Resistance Determinants: Assessing Performance in a Clinical Laboratory in Bulgaria Encho Savov¹, Angelina Trifonova¹, Iva Todorova¹, Maya Borissova¹, Ivanka Gergova¹, Elena Kioseva¹ and ...
Fluorescence in situ hybridization (FISH) for direct
... These bacteria were often seen spread among cells and fibres in the tissue (Fig. 1 a). Simultaneously, hybridization with the probe EUB 338-FITC and the control probe NON 338Cy3 showed several bacteria with the FITC filter while no signals could be seen with the Cy3 filter (Fig. 1b). Bacteria of dif ...
... These bacteria were often seen spread among cells and fibres in the tissue (Fig. 1 a). Simultaneously, hybridization with the probe EUB 338-FITC and the control probe NON 338Cy3 showed several bacteria with the FITC filter while no signals could be seen with the Cy3 filter (Fig. 1b). Bacteria of dif ...
Anders Nilsson
... • Phages increase in the presence of a suitable host • Phages decay in the absence of a host ...
... • Phages increase in the presence of a suitable host • Phages decay in the absence of a host ...
Membrane-associated and Solubilized ATPases of Streptococcus
... In this study, the basic biochemistry of the DCCD-sensitive, membrane-bound ATPases of S. mutmw, S. saizguis, and S . fclecalis was examined. Thesc enzymes appear to be important for acidurancc of whole cells and for cytoplasmic pH regulation (Kobayashi, 1985; Bender et d . , 1986). The oxybiontic b ...
... In this study, the basic biochemistry of the DCCD-sensitive, membrane-bound ATPases of S. mutmw, S. saizguis, and S . fclecalis was examined. Thesc enzymes appear to be important for acidurancc of whole cells and for cytoplasmic pH regulation (Kobayashi, 1985; Bender et d . , 1986). The oxybiontic b ...
JEOPARDY - Life Sciences Outreach at Harvard University
... A term used to describe materials that are inert to decomposition by microorganisms ...
... A term used to describe materials that are inert to decomposition by microorganisms ...
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 ...
Bacterial cell structure
Bacteria, despite their simplicity, contain a well-developed cell structure which is responsible for many of their unique biological structures. Many structural features are unique to bacteria and are not found among archaea or eukaryotes. Because of the simplicity of bacteria relative to larger organisms and the ease with which they can be manipulated experimentally, the cell structure of bacteria has been well studied, revealing many biochemical principles that have been subsequently applied to other organisms.