Sulfolobus

Definition

Sulfolobus is a genus of archaeal microorganisms that thrive in acidic and high-temperature environments, such as hot springs. They are known for their ability to metabolize sulfur and gain energy from oxidation processes.

5 Must Know Facts For Your Next Test

1. Sulfolobus species are thermophiles, meaning they grow optimally at temperatures around 70-80°C.
2. They are acidophiles, thriving in environments with pH levels ranging from 2 to 3.
3. Sulfolobus can oxidize sulfur or metal sulfides to obtain energy, which is crucial for their survival in extreme conditions.
4. The genome of Sulfolobus has been extensively studied for insights into extremophile adaptations and archaeal biology.
5. Sulfolobus contributes to biogeochemical cycles, particularly the sulfur cycle, by converting sulfur compounds in extreme environments.

Review Questions

• What temperature range is optimal for the growth of Sulfolobus?
• How does Sulfolobus obtain energy in its natural environment?
• Why is Sulfolobus considered an important organism in the study of extremophiles?

Related terms

Thermophile:

An organism that thrives at relatively high temperatures, typically between 41 and 122 degrees Celsius.

Acidophile: An organism that grows optimally at low pH levels, often below pH 3.

Extremophile: A microorganism that lives in environmental conditions so extreme that few other species can survive there.