Histological studies of <i>Phytophthora ramorum</i> in <i>Rhododendron</i> twigs
Bibliographic record
Abstract
Freshly cut Rhododendron twigs were inoculated with Phytophthora ramorum S. Werres, A.W.A.W. de Cock & W.A. Man in't Veld. Disease development (discoloration of the twigs) was observed. Tissue samples were taken for reisolation and for histological studies from four different zones of the inoculated twigs. Thin sections were stained with toluidine blue O. Reisolation of the pathogen was successful from all samples. The histological studies showed that P. ramorum was not only present in the brown zones of the Rhododendron twigs, but also in the healthy-looking green zones. Hyphae were found in different twig zones and in different tissues, but chlamydospores occurred only in brown twig zones where they developed mainly in the cortical parenchyma. Results from the histological studies provide a basis for how P. ramorum colonizes host tissue in Rhododendron twigs.Key words: Phytophthora ramorum, Rhododendron, histological studies, tissue colonization.
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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) | 0.000 | 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".