Dimorphic fungi produces

Dimorphic fungi produce Yeast type growth at 37°C and mould type growth at 22°C.
The dimorphic fungi cause infection following inhalation of spores (conidia) into the pulmonary system. In the lower respiratory tract the conidia transform into the yeast phase, which is susceptible to phagocytosis by the pulmonary macrophages.
The thermally dimorphic fungi are a unique group of fungi within the Ascomycota phylum that respond to shifts in temperature by converting between hyphae (22 - 25°C) and yeast (37°C). This morphologic switch, known as the phase transition, defines the biology and lifestyle of these fungi.