The genus Gliocladium is often described as a counterpart of Penicillium with slimy conidia. Colonies are fast growing, suede-like to downy in texture, white at first, sometimes pink to salmon, becoming pale to dark green with sporulation. The most characteristic feature of the genus is the distinctive erect, often densely penicillate conidiophores with phialides which bear slimy, one-celled hyaline to green, smooth-walled conidia in heads or columns. Although, some penicillate conidiophores are always present, Gliocladium species may also produce verticillate branching conidiophores which can be confused with Verticillium or Trichoderma. RG-1 organism.
Conidiophore and conidia of Gliocladium sp.
Gliocladium species have a world-wide distribution and are commonly isolated from a wide range of plant debris and soil.
Domsch, K.H., W. Gams, and T.H. Anderson. 1980. Compendium of soil fungi. Volume 1. Academic Press, London, UK.