Streptomyces roseosporus

Definition

Streptomyces roseosporus is a bacterium known for producing the antibiotic daptomycin. It belongs to the Actinobacteria phylum and is found in soil environments.

5 Must Know Facts For Your Next Test

1. Streptomyces roseosporus produces daptomycin, an important lipopeptide antibiotic used against Gram-positive bacteria.
2. Daptomycin disrupts bacterial cell membranes by causing rapid depolarization, leading to cell death.
3. Streptomyces roseosporus has a complex lifecycle that includes spore formation and mycelial growth.
4. This bacterium plays a critical role in natural soil ecosystems, contributing to the decomposition of organic matter.
5. Resistance to daptomycin can occur through mutations in bacterial membrane proteins.

Review Questions

Related terms

Actinobacteria:

A phylum of Gram-positive bacteria known for their ability to produce antibiotics.

Daptomycin: A lipopeptide antibiotic produced by Streptomyces roseosporus, effective against Gram-positive bacteria.

Antibiotic resistance: The ability of bacteria to withstand the effects of an antibiotic through various mechanisms.