Different phytoplasmas infecting purple coneflower in Italy
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
Echinacea purpurea (L.) Moench. (Asteraceae family), purple coneflower, is an ornamental species widely cultivated as medicinal plant having different biological activities, in particular nonspecific immunostimolatory and wound healing properties. Flower symptoms, including stunting, virescence, phyllody and abnormal flower bud proliferation, have been described in USA, Canada and Europe. Different phytoplasmas, mainly belonging to diverse subgroups (16SrI-A, 16SrI-B and 16SrI-C) in the ‘Candidatus Phytoplasma asteris’ group, were associated with these symptoms. During surveys carried out in May/June 2008 symptoms possibly related to phytoplasma presence were observed in two areas of Emilia-Romagna region. Almost 50% of purple coneflowers obtained by seeds and grown in the open field at the Herb Garden of Casola Valsenio (Ravenna province), showed virescence and stunting of the plants; while at the herb garden of the Bologna Agriculture Faculty severe symptoms including phyllody, proliferation of axillary shots and flower abnormalities were observed in one plant out of ten. Based on RFLP analyses of the 16Sr DNA PCR products phytoplasmas belonging to subgroups 16SrI-B and 16SrIX-C were identified in Casola Valsenio samples, but not in mixed infection. In samples from Bologna only 16SrIX-C phytoplasma were identified. This is the first report of these phytoplasmas in purple coneflower; the 16SrIX-C phytoplasmas were also identified in asymptomatic samples of Taraxacum and Amaranthus collected in vineyards in Modena province, while in malformed Amaranthus samples collected near to infected purple coneflower plants 16SrIX phytoplasmas detected differed from 16SrIX-C for a TaqI restriction profile. Further phytoplasma characterization to verify epidemiological aspects is in progress.
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