actidionen.

1947 B. E. Leach et al. in Jrnl. Amer. Chem. Soc. 69 474/1 Streptomycin-producing strains of Streptomyces griseus produce a second antibiotic which has little or no activity against bacteria but is very effective against many yeasts... We suggest that this compound be named actidione since it appears to be a diketone and is produced by an actinomycete.

1970 Jrnl. Gen. Microbiol. 60 291 Actidione not only causes a decrease in the radial growth rate of Absidia glauca colonies but also increases the lag.

2005 R. R. L. Gillard in R. A. Andersen Algal Culturing Techniques viii. 124/2 Actidione (cycloheximide) is usually added only to inhibit fungi, although it can also be used to inhibit eukaryotic algae.