Oomycete and chytrid infections of the marine diatom <i>Pseudo-nitzschia pungens</i> (Bacillariophyceae) from Prince Edward Island, Canada
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Two eukaryotic parasites were found infecting the bloom-forming marine diatom Pseudo-nitzschia pungens (Grunow ex Cleve) Hasle in Prince Edward Island, Canada. The most common was an oomycete; the other, seen once, was a chytrid. The structure of the discharged sporangium of both is remarkably similar. The oomycete parasite caused the host cell to lay down several extra girdle bands as the parasite thallus grew and swelled to form a holocarpic, endobiotic, nonwalled multinucleate thallus within the host cytoplasm. At maturity the thallus formed a single discharge tube with a thickened base and a thin papillate apex. Many biflagaellate zoospores were formed that burst out from the discharge tube. Ultrastructural characteristics of the oomycete thallus include mitochondria with tubular cristae and vesicles with dense body inclusions, features common to the oomycetes. The morphological characteristics and biflagellate condition indicate a placement of this form in the genus Ectrogella . However, neither flagellar mastigonemes nor flagella flimmer vesicles were found. The absence of flimmers may indicate a closer phylogenetic relationship to Haptoglossa , an endoparasitic oomycete of nematodes, the zoospores of which lack flagellar mastigonemes. Cell infection frequencies ranged from 0.6%–15.9% during 1992–1995, at the four sampling sites.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 it