Ultrastructural observations on the ascomata and ascospores of the truffle<i>Mattirolomyces terfezioides</i>
Bibliographic record
Abstract
The septal pore ultrastructure of non-ascogenous and reproductive hyphae, as well as development of the spore wall were examined in the truffle Mattirolomyces terfezioides (Mattir.) E. Fisch. (Ascomycota, Pezizales, Pezizaceae) and compared with other pezizalean taxa. The septal pore in ascogenous hyphae of M. terfezioides is a uni- or bi-convex band of the type found in the Pezizaceae. Septal pore ultrastructure in other hyphae included a uniconvex band with lamellate structure. Woronin bodies were globose to hexagonal, and infrequently ellipsoid in shape. Hexagonal Woronin bodies have not been previously reported in the Pezizaceae. Ascospore delimitation starts with two delimiting membranes and the spore-wall development is typical of the Pezizales. The heterogeneously staining spines of the secondary cell wall differ from the structures of Terfezia species. The ultrastructural characteristics of M. terfezioides show the general characteristics of the Pezizaceae, except that the hexagonal Woronin body form is new to this family. The spore delimitation, spine-cap structure, and Woronin body shape of M. terfezioides presented here are in agreement with molecular taxonomic results, which separate the genus from Terfezia and call into question the generic position of Mattirolomyces tiffanyae Healy.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".