Tag Archive for 'Streptomyces'

Morgan et al. established the activity spectrum of nourseothricin and its main components, streptothricin F (S-F, 1 lysine) and streptothricin D (S-D, 3 lysines), purified to homogeneity, against highly drug-resistant, carbapenem-resistant Enterobacterales and Acinetobacter baumannii (shown here). Image credit: Vader1941 / CC BY-SA 4.0.

Old Antibiotic Effective against Highly Drug-Resistant Gram-Negative Bacteria, Researchers Claim

May 16, 2023 by News Staff

Nourseothricin, also known as the streptothricin natural product mixture, was discovered in the early 1940s, generating intense initial interest because...

The potent antibacterial activity of lunaemycins against antibiotic resistant Gram-positive bacteria may in part explain how Streptomyces lunaelactis strains have found their own place in extremely oligotrophic and competitive environments such as moonmilk deposits. Image credit: Martinet et al., doi: 10.3390/ijms24021114.

New Group of Antibiotics Isolated from Moonmilk Deposits

Feb 8, 2023 by Natali Anderson

Lunaemycins are produced by Streptomyces lunaelactis, a species of bacterium that inhabits the moonmilk deposits of La Grotte Des Collemboles in Belgium...