Fine structure of the septum in Wallemia sebi

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Abstract
The septa of the deuteromycete Wallemia sebi (Fr.) v. Arx have expanded pore margins surrounding a central pore and lack parenthesomes. At each end of the pore there is an electron-dense region with a distinct five-banded pattern (three electron-dense bands separated by two less-electron-dense bands) oriented parallel to the septum. These septa are compared with similar septa in phycomycetes, the dolipore septa reported in the ascomycetous yeast genus Ambrosiozyma and the dolipore–parenthesome septa of the basidiomycetes. It is proposed that the term dolipore be applied to any septum having expanded pore margins.

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