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Full Text PDF - Jaypee Journals
Full Text PDF - Jaypee Journals

... INTRODUCTION Bacteriophages were discovered in 1951 by Towart.3 He described degenerative changes present in staphylococcal colonies isolated from calf lymph, which could be transmitted serially by application of culture filtrates from the original growth. Bacteriophages are the viruses with either ...
What You Need to Know About: E. coli
What You Need to Know About: E. coli

... raccoons, dogs, poultry, wild birds and houseflies, can all be hosts to E. coli O157. When an animal has E. coli O157 within its intestine, it typically “sheds” the organism through its feces. As a result, the bacteria can be found throughout the environment. Once consumed by humans, the bacteria mo ...
Bacterial Growth Requirements
Bacterial Growth Requirements

... – In 1881, Fannie Hesse, who was working as a technician for her husband in the laboratory of Robert Koch, suggested agar – Used as setting agent in jam making for some time – Replaced gelatin (poor temperature characteristics and supports growth) – Dissolves at 90°C and solidifies at 40°C ...
Global irrational antibiotics/antibacterial drugs use: A current and
Global irrational antibiotics/antibacterial drugs use: A current and

... 2. Global use and irrational use of antibiotics/antibacterial agents’ in humans, animals, agriculture and food industries Antibiotics/antibacterial drugs have long been used in treatment and controlling of bacterial diseases in humans, animals and plants [3]. In animals, they are added to feeds to e ...
Microbiology of Periodontal Diseases
Microbiology of Periodontal Diseases

... tissues, indwelling medical devices, water system piping, natural aquatic systems Prevailing microbial lifestyle (vs. planktonic) Like a complex, highly differentiated, multicultured community Of single or multi-species ...
Food Safety & Toxicology - Share My Knowledge & Experience
Food Safety & Toxicology - Share My Knowledge & Experience

... What is Food Safety? Food Safety is making a food safe to eat and free of disease causing agents such as:  Too many infectious agents  Toxic chemicals  Foreign objects ...
Identification of Anaerobes
Identification of Anaerobes

... Important to isolate and identify the organism or group of organism as most anaerobic infections are associated with high morbidity and mortality (presumptive ID OK). Treatment involves antibiotics; prompt surgical intervention including debridement of necrotic tissue and/or amputation may be import ...
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT)
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT)

... Since the 1940s, these drugs have greatly reduced illness and death from infectious diseases. Antibiotic use has been beneficial and, when prescribed and taken correctly, their value in patient care is enormous. However, these drugs have been used so widely and for so long that the infectious organi ...
The project investigated host-microbe interactions relating to
The project investigated host-microbe interactions relating to

... Probiotics, prebiotics and synbiotics were seen to confer varying levels of protection against translocation in 2 different animal models (acute liver injury and induced colitis rats) The effects of two Lactobacillus plantarum strains, with and without rose hip, on determined by a disease index meas ...
Answer (each 1 mark)
Answer (each 1 mark)

...  The term "antigenic drift" describes a minor change in antigenic structure. It is result from spontaneous mutations that generate a strain retaining a degree of serologic relationship with the circulating parent strain. Antigenic drift occurs in both type A and B and is responsible for yearly infl ...


... Discussion ...
AP Biology - Al Young Studios
AP Biology - Al Young Studios

... 24. Describe the limitations of antibiotics in combating bacterial diseases. 25. Describe how humans exploit the metabolic diversity of prokaryotes for scientific and commercial ...
UV toothbrush sterilizer
UV toothbrush sterilizer

... The UV toothbrush sterilizer reduces your exposure to harmful bacteria and viruses, by sterilizing one of the most common breeding grounds: your toothbrush. Harmful bacteria and viruses living on your toothbrush are transferred to your mouth every time you brush your teeth. This can trigger a range ...
Chapter 5: Requiremnt for Infection
Chapter 5: Requiremnt for Infection

... Another method of passive defense is through components of the bacterial cell wall. › Mycolic acid is a waxy material found in the cell ...
Lab Day 2 - Bakersfield College
Lab Day 2 - Bakersfield College

... that have very specific growth requirements. Artificial media represents an environment created to provide all the optimum requirements for their growth but also a means to make the invisible microscopic organisms, visible either through sheer numbers or through chemical reactions. Three categories ...
ANTIBIOTICS2010 ppt
ANTIBIOTICS2010 ppt

... activity against third generation cephalosporins eg cefotaxime • Can be carried on extrachromosomal plasmids which additionally encode resistance to eg, fluoroquinolones, aminoglycosides • Can be spread between different enterobacteria by conjugation • As big a threat as MRSA ...
Industrial revolution and microbial evolution
Industrial revolution and microbial evolution

... of protists and eukaryotes. See Chapter 1 for further discussion on this topic. These evolutionary pathways chart the formation of the major bacterial taxa as we identify them now (Woese 2000). Long-term evolution was driven by numerous selection factors (most of which are unknown), although the app ...
Gram Positive Cocci
Gram Positive Cocci

... penicillin binding proteins. Most S aureus seen now have altered enzymes. So, these altered enzymes are no longer impacted by the affects of penicillin or other beta lactam antibiotics. f. -Beta lactam drugs work by binging to these normal enzymes of binding proteins and inactivating them. However, ...
Bioassay of Cycloguanil Derivatives for Potential Anti
Bioassay of Cycloguanil Derivatives for Potential Anti

... Southeast Missouri State University, Cape Girardeau, MO. ...
Revised: September 2011 AN: 01097/2011 SUMMARY OF
Revised: September 2011 AN: 01097/2011 SUMMARY OF

... ATC Vet Code: QJ01XX04 Spectinomycin is an aminocyclitol antimicrobial and has been shown to be produced by two kinds of fungi, Streptomyces flavopersicus and Streptomyces spectabilis. It is similar to the aminoglycosides, acting by binding to ribisomal 30s subunits of the bacteria. In-vitro tests h ...
Towards safer vectors for the field release of recombinant bacteria
Towards safer vectors for the field release of recombinant bacteria

... their efficiency across a wide range of bacteria. The gef gene product of E. coli is a porin-inducing protein and kills many different types of bacteria by generating pores in the cell membrane, thereby destroying the membrane potential (Molin et al., 1993; Jensen and Gerdes, 1995). The relF gene of ...
bacterial resistance and antibiotic therapy
bacterial resistance and antibiotic therapy

... An integral part of treatment of ...
B.Sc. (Microbiology)
B.Sc. (Microbiology)

... Antigen antibody interaction antigen, structure, properties, type, epitops, Heptane.Antibody structure and functions. Immunoglobulin structure, types and function UNIT-III Antigen-Antibody interaction, precipitation reaction agglutination, RIA, ElISA. Western blotting, major histocompatibility compl ...
Antibiotic and antiseptic resistance: impact on public
Antibiotic and antiseptic resistance: impact on public

... vancomycin plus a cephalosporin, is recommended for the treatment of this community-acquired infection.6 Neisseria gonorrhoeae, previously easily treated with a single penicillin injection, has become so frequently resistant to this antibiotic that alternative drugs have been required. Today resista ...
Microbial biofilms: case reviews of bacterial and fungal pathogens
Microbial biofilms: case reviews of bacterial and fungal pathogens

... gastrointestinal tract, usually without causing incidents of disease. In humans, E. coli is excreted from the host organism in the faeces, where it usually enters either the sewage treatment system and is usually killed by chlorination or a similar treatment. However, semi-treated sewage, run-off fr ...
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Bacterial morphological plasticity

Bacterial morphological plasticity refers to evolutionary changes in the shape and size of bacterial cells. As bacteria evolve, morphology changes have to be made to maintain the consistency of the cell. However, this consistency could be affected in some circumstances (such as environmental stress) and changes in bacterial shape and size, but specially the transformation into filamentous organisms have been recently showed. These are survival strategies that affect the bacterial normal physiology in response for instance to innate immune response, predator sensing, quorum sensing and antimicrobial signs.
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