Record Display for the EPA National Library Catalog


Main Title Effect of 'Beauveria bassiana' and Its Toxins on 'Mysidopsis bahia' (Mysidacea).
Author Genthner, F. J. ; Cripe, G. M. ; Crosby., D. J. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL. ;Technical Resources, Inc., Gulf Breeze, FL.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/113;
Stock Number PB94-155520
Additional Subjects Toxicity ; Pathogenic fungi ; Insect control ; Estuarine environment ; Crustaceans ; Musid shrimp ; Risk assessment ; Dose-response relationships ; Environmental persistence ; Lethal limit ; Biocontrol ; Biological effects ; Suspended solids ; Chemical analysis ; Reprint ; Mycoinsecticide ; Mysidopsis bahia ; Beauvaria bassiana
Library Call Number Additional Info Location Last
NTIS  PB94-155520 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
Beauveria bassiana spores and metabolites were evaluated for toxicity and pathogenicity to Mysidopsis bahia. Static acute 96-hr tests were conducted with < or - 24-h-old M. bahia using either conidiospores, the mycotoxin, beauvericin, or a nonpolar extract of the mycelia. Conidiospore densities of > or - 1.5 X 10(6)/ml caused high mortalities. These mortalities were attributed to a high particulate density since heat-killed controls also proved lethal. Beauvericin, a cyclic depsipeptide produced by some strains of B. bassiana, was toxic at an LC50 of 0.56 mg/l. The toxicity of beauvericin persisted in sterile seawater for at least three, but not eight weeks. A nonpolar extract of mycelia from B. bassiana containing beauvericin was toxic at an LC50 of 84.2 mg/l. In contrast, a nonpolar extract of mycelia from the fungal weed pathogen, Colletotrichum gloeosporioides f. sp. aeschynomene (Cga), was not toxic when tested up to 70.4 mg/l.