[1H, 1´H-[3, 3´]Biindolyl from the terrestrial fungus Gliocladium catenulatum

Abstract

Two ETP-derived compounds, 2 and 3, and 3,3¢- biindol, previously undescribed as a naturally occurring product, which has specific antibacterial activity against the honey bee enthomopathogenic bacterium P. larvae, were all isolated and identified from a culture of the fungus G. catenulatum. This is the first report of the isolation of these compounds from this species.