Deltaproteobacteria

Definition

Deltaproteobacteria are a class of Proteobacteria known for their diverse metabolic capabilities, including sulfur reduction and predatory behavior. They are often found in aquatic environments and soil.

5 Must Know Facts For Your Next Test

1. Deltaproteobacteria include important genera such as Desulfovibrio and Myxococcus.
2. They play a crucial role in the sulfur cycle by reducing sulfate to hydrogen sulfide.
3. Some members exhibit predatory behavior, such as Bdellovibrio which preys on other bacteria.
4. Deltaproteobacteria can be found in anaerobic environments where they participate in organic matter decomposition.
5. They are studied for their potential applications in bioremediation due to their metabolic versatility.

Review Questions

• What is the role of Deltaproteobacteria in the sulfur cycle?
• Name two genera that belong to Deltaproteobacteria and describe their ecological roles.
• How do some Deltaproteobacteria exhibit predatory behavior?

Related terms

Proteobacteria: A major phylum of Gram-negative bacteria that includes a wide variety of pathogens.

Sulfate-reducing bacteria (SRB): A group of microorganisms within Deltaproteobacteria that reduce sulfate to hydrogen sulfide.

Bioremediation: The use of microorganisms to degrade environmental contaminants into less harmful forms.