Asexual reproductive organ-specific expression of the glyceraldehyde-3-phosphate dehydrogenase 2 gene of Pilobolus crystallinus

Pilobolus crystallinus has three putative glyceraldehyde-3-phosphate dehydrogenase (gapdh) genes (pcgapdh1, pcgapdh2 and pcgapdh3). The results of this study demonstrate that expression of pcgapdh2 was increased by irradiation and that this increased expression was correlated with the formation of asexual reproductive organs (trophocysts). Interestingly, expression of pcgapdh2 was restricted to trophocysts. The formation of trophocysts was likely promoted by light, and the expression of pcgapdh2 was increased as a result of trophocyst formation. This is the first report that shows the regulation of a gapdh gene in an organ-specific manner in fungi.     

Mortierella thereuopodae,a new species with verticillate large sporangiophores,inhabiting fecal pellets of Scutigeromorpha

A new species, Mortierella thereuopodae, is described for a fungus sporulating on fecal pellets of the centipede Thereuopoda clunifera (Chilopoda). The species produces large cymosely to verticillately branched sporangiophores on well-developed rhizoids with the formation of chlamydospore clusters.