Bacteriology Archives - Microbiology Notes

Bacteriology, Basic Microbiology, Differences between
Differences between Fimbriae and Pili 4.51/5 (333)

By Pratiksha Pokhrel on January 2, 2016

Please rate this Please Rate 0 1 2 3 4 5 Differences between Fimbriae and Pili Fimbriae and Pili are filamentous structures composed of protein that extend from the surface of a cell and can have many functions. Fimbriae are found in gram negative as well as gram positive bacteria but are shorter in length as compared to pili. Pili… Continue reading "Differences between Fimbriae and Pili <span class="rating-result after_title mr-filter rating-result-357" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star-half-o mr-star-half"></i> </span> <span class="star-result"> 4.51/5</span> <span class="count"> (333) </span> </span>"
Bacteriology, Biochemical Test, Laboratory
Hippurate Hydrolysis Test- Principle, Uses, Procedure, Result Interpretation with Limitations 4.79/5 (42)

By Pratiksha Pokhrel on December 29, 2015

Please rate this Please Rate 0 1 2 3 4 5 Hydrolysis Test- Principle, Uses, Procedure, Result Interpretation with Limitations Hippurate Hydrolysis test Hippurate hydrolysis test is used in the presumptive identification of Gardnerella vaginalis, Campylobacter jejuni, Listeria monocytogenes and group B streptococci, by detecting the ability of the organism to hydrolyze hippurate. Principle Hippurate hydrolysis positive organisms can hydrolyze 1% aqueous sodium hippurate… Continue reading "Hippurate Hydrolysis Test- Principle, Uses, Procedure, Result Interpretation with Limitations <span class="rating-result after_title mr-filter rating-result-349" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> </span> <span class="star-result"> 4.79/5</span> <span class="count"> (42) </span> </span>"
Bacteriology, Biology, Differences between
Differences between Bacteria and Cyanobacteria 4.1/5 (222)

By Pratiksha Pokhrel on October 29, 2015

Please rate this Please Rate 0 1 2 3 4 5 Differences between Bacteria and Cyanobacteria Cyanobacteria is also known as blue-green algae. They differ from other bacteria in that cyanobacteria possess chlorophyll-a, while most bacteria do not contain chlorophyll. Chlorophyll-a gives them their characteristic blue-green color. Differences between Bacteria and Cyanobacteria are given as follows: S.N. Characters Bacteria Cyanobacteria… Continue reading "Differences between Bacteria and Cyanobacteria <span class="rating-result after_title mr-filter rating-result-300" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star-o mr-star-empty"></i> </span> <span class="star-result"> 4.1/5</span> <span class="count"> (222) </span> </span>"
Bacterial Identification, Bacteriology
Quellung Reaction For Pneumococci 4.68/5 (22)

By Pratiksha Pokhrel on October 25, 2015

Please rate this Please Rate 0 1 2 3 4 5 Quellung Reaction For Pneumococci Streptococcus pneumoniae (Pneumococcus), a normal inhabitant of the human upper respiratory tract, is one of the major causative agents of bacterial pneumonia, meningitis, sepsis, bacteremia and otitis media. The traditional methods for identification of S. pneumoniae are presumptive procedures based on Gram stain reaction, alpha-hemolysis,… Continue reading "Quellung Reaction For Pneumococci <span class="rating-result after_title mr-filter rating-result-290" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star-half-o mr-star-half"></i> </span> <span class="star-result"> 4.68/5</span> <span class="count"> (22) </span> </span>"
Bacteriology, Biochemical Test
Optochin Susceptibility Test for Streptococcus pneumoniae 4.89/5 (19)

By Pratiksha Pokhrel on October 20, 2015

Please rate this Please Rate 0 1 2 3 4 5 Optochin Susceptibility Test for Streptococcus pneumoniae Streptococcus pneumoniae is found commonly in human respiratory tract, as other streptococci, and has a hemolytic pattern indistinguishable from that of other alpha-hemolytic streptococci and Lactococci. Optochin (ethylhydrocupreine hydrochloride) is a chemical (quinine derivative) that is used in the presumptive identification of alpha-hemolytic… Continue reading "Optochin Susceptibility Test for Streptococcus pneumoniae <span class="rating-result after_title mr-filter rating-result-252" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> </span> <span class="star-result"> 4.89/5</span> <span class="count"> (19) </span> </span>"
Bacteriology
Cultural Characteristics of Helicobacter pylori 4.5/5 (46)

By Pratiksha Pokhrel on October 5, 2015

Please rate this Please Rate 0 1 2 3 4 5 Cultural Characteristics of Helicobacter pylori They are micro-aerophilic, require 5-10% CO2 and high humidity. They are fastidious organism. They grow best at 37°C but not at 43°C and below 30°C. Growth is best on blood agar and chocolate agar after incubation for 2-5 days. Colonies are circular, convex and… Continue reading "Cultural Characteristics of Helicobacter pylori <span class="rating-result after_title mr-filter rating-result-231" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star-half-o mr-star-half"></i> </span> <span class="star-result"> 4.5/5</span> <span class="count"> (46) </span> </span>"
Bacteriology, Biochemical Test, Diagnosis, Laboratory
Bacitracin Test- Principle, Procedure, Result with Limitation 4.61/5 (31)

By Pratiksha Pokhrel on September 30, 2015

Please rate this Please Rate 0 1 2 3 4 5 Bacitracin Test- Principle, Procedure, Result with Limitation Bacitracin is produced by Bacillus licheniformis and it interrupt the formation of peptidoglycan, a major component of bacterial cell wall. If bacitracin is present it blocks bactoprenol from transporting NAM and NAG sugars across the cell membrane thereby inhibiting further synthesis of… Continue reading "Bacitracin Test- Principle, Procedure, Result with Limitation <span class="rating-result after_title mr-filter rating-result-228" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star-half-o mr-star-half"></i> </span> <span class="star-result"> 4.61/5</span> <span class="count"> (31) </span> </span>"
Bacteriology, Biochemical Test, Laboratory
Reverse CAMP test for the identification of Clostridium perfringens 4.64/5 (107)

By Pratiksha Pokhrel on September 24, 2015

Please rate this Please Rate 0 1 2 3 4 5 Reverse CAMP test for the identification of Clostridium perfringens Hansen used the synergistic relationship between the two microbes to develop a test, known as the reverse CAMP test, using Streptococcus agalactiae for the identification of Clostridium perfringens. Alpha toxin producing C. perfringens and group B, β-haemolytic streptococci grow in… Continue reading "Reverse CAMP test for the identification of Clostridium perfringens <span class="rating-result after_title mr-filter rating-result-218" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star-half-o mr-star-half"></i> </span> <span class="star-result"> 4.64/5</span> <span class="count"> (107) </span> </span>"
Bacteriology, Biochemical Test, Diagnosis, Laboratory
CAMP Test- Principle, Purpose, Procedure, Result and Limitation 4.68/5 (186)

By Pratiksha Pokhrel on September 22, 2015

Please rate this Please Rate 0 1 2 3 4 5 CAMP Test- Principle, Purpose, Procedure, Result and Limitation CAMP test was first identified by Christie, Atkins, and Munch-Peterson in 1944 and CAMP test is an acronym of three researchers. CAMP (Christie, Atkins, and Munch-Peterson) test is used for the presumptive identification of Group B Streptococci (Streptococcus agalactiae). It is… Continue reading "CAMP Test- Principle, Purpose, Procedure, Result and Limitation <span class="rating-result after_title mr-filter rating-result-209" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star-half-o mr-star-half"></i> </span> <span class="star-result"> 4.68/5</span> <span class="count"> (186) </span> </span>"
Bacteriology, Biochemical Test, Laboratory
Cetrimide Test- Principle, Procedure, Result Interpretation and Limitation 3.81/5 (26)

By Pratiksha Pokhrel on September 3, 2015

Please rate this Please Rate 0 1 2 3 4 5 Cetrimide Test- Principle, Procedure, Result Interpretation and Limitation Cetrimide is a quaternary ammonium, cationic detergent that is toxic substance to most bacteria, except Pseudomonas aeruginosa and few other bacteria. Principle This test is used to determine the ability of an organism to grow in the presence of cetrimide, a… Continue reading "Cetrimide Test- Principle, Procedure, Result Interpretation and Limitation <span class="rating-result after_title mr-filter rating-result-201" > <span class="mr-star-rating"> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star mr-star-full"></i> <i class="fa fa-star-o mr-star-empty"></i> </span> <span class="star-result"> 3.81/5</span> <span class="count"> (26) </span> </span>"