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The entomogenous fungos, Beauveria bassiana, pathogen of the coffee berry borer, Hypothenemus hampei, when growing on SDA or rice rarely produces chlamydospore; however, when SDA and rice were amended with 600, 3000 & 6000 ppm of copper oxychloride, ninety-nine isolates from differ­ent insect orders produced a large number of chlamydospores. The chlamydospore cy­toplasm of all isolates contain large lipid de­posits and vacuoles, mitochondria, and endoplasmic reticulum, all typical of fungal cells. The induction of chlamydospores in B. bassiana may be of interest in developing formulations for the control of terrestrial insects due to the persistence of this structure. This is the first time that a chlamydospore forma­tion in B. bassiana is reported.

RIVERA-MALO, A., & BUSTILLO-PARDEY, A. E. (1997). Fine structure of Beauveria bassiana chlamydospores in culture amended with cooper oxychloride. Revista Colombiana De Entomología, 23(2), 133–136. https://doi.org/10.25100/socolen.v23i2.9894