Mycotoxins of entomophthoraceous fungi

Sothorn Prasertphon and Y. Tanada

Hilgardia, 1969, vol. 39, issue 21

Abstract: Among the four entomophthoraceous species, Entomophthora coronata, E. apiculata, E. thaxteriana, and E. virulenta, only the first two species produced culture filtrates that were toxic when inoculated into the hemocoels of the larvae of seven insect species. The culture filtrates, however, produced no apparent toxicity when fed to the larvae of Galleria mellonella. The fungi produced mycotoxins in all media suitable for their growth in vitro and in vivo. The mycotoxins produced by the two fungi had similar properties and appeared to be identical, but E. coronata produced much more toxin than E. apiculata in the same period of time. More toxin were produced by both fungi in shake than in stationary cultures. The median effective doses (ED50) of the culture filtrates (96-hour cultures) were estimated from data.

Keywords: Environmental; Economics; and; Policy (search for similar items in EconPapers)
Date: 1969
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