Abstract The filamentous fungus Beauveria bassiana is an
economically important pathogen of numerous arthropod
pests and is able to grow in submerged culture as filaments
(mycelia) or as budding yeast-like blastospores. In this study,
we evaluated the effect of dissolved oxygen and high glucose
concentrations on blastospore production by submerged cultures
of two isolates of B. bassiana, ESALQ1432 and GHA.
Results showed that maintaining adequate dissolved oxygen
levels coupled with high glucose concentrations enhanced
blastospore yields by both isolates. High glucose concentrations
increased the osmotic pressure of the media and coincided
with higher dissolved oxygen levels and increased