Septa ultrastructure and hyphal branching in the pleomorphic imperfect fungus Trichosporonoides oedocephalis

Abstract

Incomplete septa, complete simple septa, septa with simple pores, but mostly dolipore septa without pore caps or parenthosomes are present in this organism. Walls are distinctly laminar in aspect, especially with glutaraldehyde – osmic acid fixation. Cell division is by septum formation between previously formed septa. Conidia result from either blastospore or endospore (arthrospore) formation. Branching occurs irrespective of the type of adjacent septa, with each cell capable of bipolar germination. The organism shows features of both ascomycetous and basidiomycetous yeasts.