Characters and character states - Septum/Pore cap
(In progress)

Clicking on images will open a larger version in a new window.

Labels in diagrams are "Character number (character state number)".

Subgroup - Hyphae excluding ascogenous hyphae/ascus

1. Uniperforate septa (excluding ascogenous hyphae/ascus):
0, absent, walled off pore, or apparently walled off pore;
1, a single central pore;
2. Uniperforate septal pore margin (excluding ascogenous hyphae/ascus):
0, uniperforate septal pore absent;
1, unelaborated margin;
2, uniperforate septal pore absent but with some type of discontinuity within the septum, e.g., disruption of central layer of cross wall, wall swelling, and/or deposits within cross wall, suggestive of a blocked or disrupted pore (Ustilaginaceae);
3, septal pore swelling (hymenomycetous type; swells with glutaraldehyde fixation);
4, with lenticular cavity (bifurcate)
3. Protruding non-membrane-bound bodies associated with septal pore(s) (excluding ascogenous hyphae/ascus):
0, absent;
1, present
4. Membrane-bound bodies associated with septal pore(s) (excluding ascogenous hyphae/ascus):
0, absent;
1, Woronin bodies
2, microbodies
5. Membranous structures associated with septal pore(s) (excluding ascogenous hyphae/ascus):
0, absent;
1, septal pore cap;
2, endoplasmic reticulum not associated with plasmodesmata
3, endoplasmic reticulum associated with plasmodesmata
6. Non-membrane-bound, electron-dense bodies associated with septal pore(s) (excluding ascogenous hyphae/ascus):
0, absent;
1, present (Kriegeria and Auriculoscypha)
7. Septal pore occlusion (excluding ascogenous hyphae/ascus):
0, absent;
1, pulley wheel-shaped occlusion (Uredinales type);
2, non-membranous [thin non-membranous plate(s) and/or occluding material (Hymenomycetes but may occur elsewhere, e.g., Helvellaceae)];
3, membranous plates continuous with plasma membrane (Tilletia);
4, thickened non-membranous plate (flattened disc, biumbonate, or irregular; Zygomycetes);
5, granular lamellate structure (Pezizales);
6, subspherical occlusion, non-membrane-bound, with translucent finger-like extensions from pore margin (Neurospora);
7, subspherical occlusion, non-membrane-bound, lacking translucent finger-like extensions (Sclerotinia)
8, non-membranous occluding material (Kriegeria)
8. Organelle trafficking (excluding ascogenous hyphae/ascus):
0, organelle trafficking absent;
1, mitochondria;
2, nuclei;
3, ribosomes/small particles or organelles
9. Woronin body type (excluding ascogenous hyphae/ascus):
0, Woronin bodies absent
1, globose;
2; hexagonal;
3, rectangular/cylindrical;
10. Septal pore cap basic structure (excluding ascogenous hyphae/ascus):
0, pore cap absent;
1, elaborated cap with abseptal or adseptal extensions (cupulate, reticulate, or tubular extensions);
2, simple cap (cap with unelaborated abseptal surface)
11. Detailed structure of elaborated septal pore cap (excluding ascogenous hyphae/ascus):
0, elaborated cap absent;
1, abseptal extensions (smooth vesicular-tubular membranous structures);
2, multiple saccules;
3, cap reticulate
12. Detailed structure of simple septal pore cap (excluding ascogenous hyphae/ascus):
0, simple cap absent;
1, cap imperforate, flat;
2, cap imperforate or uniperforate, curved;
3, cap multiperforate, small pores;
4, cap multiperforate, large pores
13. Saccules of elaborated pore cap lined with external electron-dense layer (excluding ascogenous hyphae/ascus):
0, absent;
1, present
14. Substructure of pore cap (excluding ascogenous hyphae/ascus):
0, absent
1, cap with uniform electron-transparent contents;
2, cap with uniform electron-dense contents;
3, cap with three internal layers (central electron-dense layer between two less electron dense layers)
15. Zone of organelle exclusion at pore (excluding ascogenous hyphae/ascus):
0, absent;
1, present
16. Pore cap enclosed by endoplasmic reticulum (excluding ascogenous hyphae/ascus):
0, absent;
1, present, not continuous with pore cap;
2, present and continuous with pore cap

Home Page

---

Questions and/or Comments can be directed to

davem@umn.edu