Characterization of <i>Dryas octopetala</i> ectomycorrhizas from limestone karst vegetation, western Ireland
Bibliographic record
Abstract
The principal ectomycorrhizas of Dryas octopetala L. from a treeless grass-heath in the Burren, western Ireland, were characterized using morphotyping and molecular methods (PCR-RFLP analysis of ITS-rDNA and sequencing of the ITS region). Twenty-one distinct morphotypes are described. Six of these (Cortinarius atrovirens Kalchbr., Cortinarius caesiocanescens (Mos.) Kühn. & Romagn., Cortinarius calochrous (Mos.) Nezd., Cortinarius odorifer Britz., Cortinarius mussivus Fr., and Tricholoma myomyces (Scop.) Quél.) were distinguished by tracing rhizomorph connections between mycorrhizas and basidiomes. The ectomycorrhizas of Cenococcum geophilum Fr., Craterellus lutescens (Pers.:Fr.) Fr., and Hebeloma sinapizans (Paulet:Fr.) Gill were identified based on molecular and morphological evidence. The ectomycorrhizas of Cortinarius brunneus (Pers.:Fr.) Fr., Cortinarius infractus (Pers.:Fr.) Fr., Hydnum repandum L., and Hebeloma circinans Quél. were distinguished provisionally, because they were consistently found in soil core samples containing basidiomes of a particular fungal species. The provisional identification of Lactarius sanguifluus (Paulet) Fr., and Russula delica Fr. ectomycorrhizas was also based on anatomical evidence, particularly the presence of lacticifers and cystidia, respectively. Six morphotypes could not be assigned to a specific fungal taxon and, therefore, were named "Dryadirhiza" + a characterizing epithet (D. aerea, D. cerina, D. fulgens, D. nigra, D. rugosa, and D. truncata). It is concluded that Dryas octopetala forms ectomycorrhizal associations in the Burren with woodland fungal species.Key words: ectomycorrhizas, Dryas octopetala, morphotyping, ITS-RFLP, mountain avens.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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) | 0.005 | 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 teacher head, 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".