Within the cells of
basidiomycetefungi are found microscopic structures called parenthesomes or septal pore caps. They are shaped like parentheses and found on either side of pores in the doliporeseptum which separates cells within a hypha. Their function has not been established, and their composition has not been fully elucidated. The variations in their appearance are useful in distinguishing individual species.
* Müller W. H. et al., Structural differences between two types of basidiomycete septal pore caps, "Microbiology" 1998 Jul; 144 (Pt 7):1721-30.
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