Answer :
The selected human pathogen is Vibrio parahaemolyticus.
What is Vibrio parahaemolyticus? Vibrio parahaemolyticus is a bacteria that causes foodborne illnesses. It is typically associated with the consumption of contaminated seafood, particularly oysters and shellfish. The bacteria are naturally found in brackish and saltwater and can grow rapidly in warm temperatures. The bacteria cause gastroenteritis and symptoms include diarrhea, abdominal pain, vomiting, fever, and chills. In severe cases, it can cause sepsis.
Nutritional requirements of Vibrio parahaemolyticus:
Carbon source requirement: Vibrio parahaemolyticus requires a simple carbon source like glucose or other monosaccharides.
Energy source requirement: It is a chemoorganotrophic bacterium, deriving energy from the breakdown of organic compounds.
Oxygen requirement: Vibrio parahaemolyticus is a facultative anaerobe and can grow in both the presence and absence of oxygen. It uses aerobic respiration in the presence of oxygen and switches to anaerobic respiration in its absence.
pH requirement: The optimum pH for Vibrio parahaemolyticus growth is 7.8 - 8.5.Temperature requirement: Vibrio parahaemolyticus grows best at temperatures ranging from 20°C to 37°C.
Osmotic requirement: Vibrio parahaemolyticus is a halophile, meaning it requires a salty environment to grow. It grows well in environments with a salt concentration of 0.5-7%.
Cell morphology: Vibrio parahaemolyticus is a gram-negative, motile, curved rod-shaped bacterium. It has a single polar flagellum that helps it move in a rapid, darting motion through the water.
What is the nutritional requirement for Vibrio parahaemolyticus?
The nutritional requirement for Vibrio parahaemolyticus is that it requires a simple carbon source like glucose or other monosaccharides. Vibrio parahaemolyticus is a chemoorganotrophic bacterium, deriving energy from the breakdown of organic compounds.
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