Fine Structure of Beauveria Bassiana Chlamydospores in Culture Amended with Cooper Oxychloride

Abstract

Spanish

The entomogenous fungus, 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 an 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 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.

Keywords

Chlamydospore Copper oxychloride Coffee berry borer Biological control

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