Characteristics of Salmonella Bacteria

Salmonella commonly resides in eggs
••• "egg" is Copyrighted by Flickr user: House Of Sims (brandi sims) under the Creative Commons Attribution license.

Salmonella is genus that includes 2,300 different species of bacteria. The most common types of salmonella are Salmonella enteritidis and Salmonella typhimurium, which account for half of all human infections.

Gram Test

The Gram test determines to the composition of a bacterium's cell wall. Salmonella is gram negative, which signifies high amounts of peptidoglycan, a mesh-like substance that provides structure and strength.

Oxygen Needs

Salmonella is a facultative bacteria. This means that it can survive with or without oxygen. Obligate bacteria, on the other hand, can only survive under specific conditions.


Salmonella is a rod-shaped bacteria, or bacillus. Unlike other strains of bacilli, however, salmonella does not produce spores.

Appearance on Augur

On MacConkey agar, salmonella colonies appear colorless and transparent, though they sometimes have dark centers. A colony is a group of bacteria that are growing together.


Salmonella causes two diseases in humans: Enteric fever, or typhoid, and gastroenteritis. Doctors refer to both diseases as "salmonellosis"

Related Articles

Types of Coccus Bacteria
Where Do Bacteria Live?
Colony Characteristics of E.Coli
How to Identify an Unknown Bacteria in Microbiology
How Enterococcus Faecalis Changes the Mannitol Salt...
Types of Bacteria on the Tongue
Types of Spore Forming Bacteria
Differences Between Yeasts & Moulds
What Is a Extra Ring of DNA in Bacteria?
List of Bacteria in the Temperate Deciduous Forest
The Types of Cells Which Lack a Membrane Bound Nucleus
The Disadvantages of Fungi
Types of Bacteria in Blood
Types of Coccus Bacteria
Characteristics of Aquatic Plants
Pathogenic Bacteria in Soil
What Is Arrangement in Microbiology?
The Structure That Surrounds the Cytoplasm in a Bacterial...
The Advantages of Stained Bacteria
How Are Photosynthesis & Cellular Respiration Related?

Dont Go!

We Have More Great Sciencing Articles!