streptomyces
A scientist examines a petri dish containing streptomyces under a bright light.
Noun 1. A genus of bacteria: Streptomyces refers to a large genus of Gram-positive, filamentous bacteria found primarily in soil. They are known for their complex life cycle, which includes the formation of spores, and are a major source of many important antibiotics.
Streptomyces is used as a singular noun to refer to the genus as a whole or to an individual bacterium of this type. It is often discussed in scientific contexts related to microbiology, medicine, and biochemistry. - The discovery of antibiotics like streptomycin and tetracycline is credited to soil-dwelling bacteria of the genus Streptomyces. - A researcher might isolate a Streptomyces colony from a soil sample to screen for novel antimicrobial compounds.
- Scientific Context:
- Many commercially important antibiotics are derived from Streptomyces.
- The Streptomyces genome contains a high number of genes dedicated to the production of secondary metabolites.
- Taxonomic Reference: The word is capitalized () when referring to the formal genus name in biological taxonomy. The plural form is (often not capitalized in general text) when referring to multiple types or species within this group.
- Several streptomycetes were found to have antifungal properties.
- Streptomycete (n): Another term for a bacterium belonging to the genus .
- Streptomycin (n): A specific antibiotic drug produced by the bacterium .
- Actinobacterium (n): A broader term for bacteria in the order Actinomycetales, which includes . (Note: This is a more general category.)
- Filamentous bacterium (n): A descriptive term highlighting its physical structure.
A scientist examines a petri dish containing streptomyces under a bright light.
- aerobic bacteria (some of which produce the antibiotic streptomycin)