Serratia marcescens: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes
Introduction Morphology Pathogenicity Lab Diagnosis Treatment Prevention Keynotes Further Readings
Bacillus
Sphingomonas paucimobilis-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes
Introduction Sphingomonas paucimobilis (formerly classified as Pseudomonas paucimobilis) is a strictly aerobic, non-fermenting, Gram-negative bacillus. It is an environmental oligotroph found widely in soil and water systems. It serves as a stealthy opportunistic pathogen in clinical settings. It can survive in nutrient-poor conditions and form …
Listeria monocytogenes: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes
Introduction Listeria monocytogenes is a gram-positive, rod-shaped bacterium that is widely distributed in nature and can cause a serious foodborne infection known as listeriosis. It is one of the few bacterial species capable of growing at refrigeration temperatures, making it a significant concern for food …
Bacillus: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes
Introduction Bacillus is a genus of gram-positive, rod-shaped bacteria that belongs to the phylum Firmicutes. These bacteria are commonly found in various environments, including soil, water, and the gastrointestinal tracts of animals. The name “Bacillus” is derived from the Latin word for “rod.” Bacillus species …
Exotoxins and Endotoxins: Introduction, Differences, and Keynotes
Introduction of Exotoxins and Endotoxins Numerous bacteria produce toxins, enzymes, and pigments. Toxins and enzymes play significant roles in pathogenicity. Toxins are of two types- Differences Between Exotoxins and Endotoxins The differences between exotoxins and endotoxins are as follows- S. No Exotoxins Endotoxins 1. Exotoxins …
Hanging Drop Preparation: Introduction, Test Requirements, Procedure, Result-Interpretation, Keynotes, and Bacterial Motility Footages
Introduction of Motility Test for Bacteria/ Hanging Drop Preparation Bacteria are motile due to having flagellum/flagella. On the flagella, bacteria are motile and non-motile and therefore some bacteria are motile (Vibrio cholerae, E. coli, Proteus species, etc.) whereas some others are non-motile like Klebsiella, Shigella, …
Methylene Blue Stain: Introduction, Principle, Composition, Preparation, Staining Requirements, Staining Procedure, Result Interpretation, and Keynotes
Introduction Methylene Blue Stain, also known as methylene blue aqueous is an ordinary stain. It is used for capsule stain as well as simple staining for a rapid and easy way to determine cell shape, size, and arrangements of bacteria. It is also made easier to …