Assembling the Fungal Tree of Life

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Phylum Subphylum Class Subclass Order Family Genus Species Anamorph
Basidiomycota Agaricomycotina Tremellomycetes Tremellales Trichosporonaceae Trichosporon 2sporotrichoides
Authority(Oorschot) Oorschot & de Hoog



Septum / Pore Cap

Cell type: (XN) mycelium of unknown nuclear status

Component: Hypha excluding ascogenous hypha/ascus

CharacteristicStateCodeImages
Uniperforate septa a single central pore 1 Images
Uniperforate septal pore margin septal pore swelling 3 Images
Protruding non-membrane-bound bodies associated with septal pore(s) absent 0 Images
Membrane-bound bodies associated with septal pore(s) absent 0 Images
Membranous structures associated with septal pore(s) septal pore cap 1 Images
Non-membrane-bound, electron-dense bodies associated with septal pore(s) absent 0 Images
Septal pore occlusion thin non-membranous, non-continuous electron-dense material associated with septal swellings (Agaricomycotina) 2  
Organelle trafficking organelle trafficking absent 0 Images
Woronin body type Woronin bodies absent 0 Images
Septal pore cap basic structure elaborated cap with abseptal or adseptal extensions (cupulate, reticulate, or tubular extensions) 1 Images
Detailed structure of elaborated septal pore cap abseptal extensions (smooth vesicular-tubular membranous structures) 1 Images
Detailed structure of simple septal pore cap simple cap absent 0 Images
Saccules of elaborated pore cap lined with external electron-dense layer absent 0  
Substructure of pore cap cap with uniform electron-transparent contents 1 Images
Zone of organelle exclusion at pore absent 0 Images
Pore cap enclosed by endoplasmic reticulum absent 0 Images
Multiperforate septum multiperforate septum absent 0 Images
Sources
Notes Septal pore cap is usually absent, rarely present. Pore cap stains with ZIO similar to connected ER; 1,6-_-glucan localized in zone of exclusion when pore cap absent and present in septal pore swelling
Character Quality High
Fixation SEM with glutaraldehyde/osmium & freeze fracture; high pressure freezing & freeze-sub; cytochemical staining with zinc/iodine/osmium (ZIO); sugar staining with alkaline bismuth & immunogold labeling of 1,6-?-glucan
Study Complete Yes
Author Muller, W.H., Montijn, R.C., Humbel, B.M., van Aelst, A.C., Boon, E.J.M.C., van der Krift, T.P., & Boekhout, T.
Date 1998
Source Microbiology 144: 1721-1730
Culture collection CBS
Culture no. 8245
Source of character Culture

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