mesophile

Mesophiles are microorganisms that thrive in moderate temperature ranges, typically between 20°C and 45°C (68°F and 113°F). This temperature range is also where many animal pathogens are found. While they can survive and grow in temperatures between 10°C and 50°C (50°F and 122°F), their optimal growth occurs within their specific mesophilic range.12

Microorganisms, including mesophiles, exhibit a wide diversity in their nutritional requirements and the environmental conditions that support their growth. Some are autotrophs, utilizing carbon dioxide as their carbon source, while others are heterotrophs, using organic compounds like carbohydrates, lipids, and proteins.1

The term "microorganism" encompasses a broad category of life, including bacteria and archaea. Bacteria are prokaryotic cells lacking a nucleus, while archaea are a distinct group of prokaryotes with unique molecular characteristics. Many archaea are known as extremophiles, thriving in harsh conditions like high temperatures, salinity, or acidity, which are outside the typical range for mesophiles.34