Impact of anthracene on the arbuscular mycorrhizal fungus lipid metabolism
Bibliographic record
Abstract
Anthracene, a low-molecular-weight polycyclic aromatic hydrocarbon (PAH) originating mainly from anthropogenic activities, represents one of the major persistent organic pollutants frequently detected in polluted soils. A few studies have reported the negative effect of PAH on the main steps of the arbuscular mycorrhizal fungi (AMF) life cycle resulting from lipid peroxidation; however, little is known regarding the impact of anthracene on extraradical AMF lipid metabolism. Radiolabelling experiments showed significant decreases of [1-14C]acetate incorporation into the sterol precursors (4,4-dimethylsterols and 4α-methylsterols) and in the total phospholipids (PL) of Rhizophagus irregularis (Blaszk., Wubet, Renker & Buscot) extraradical mycelium when grown in the presence of anthracene. These findings suggested a slowing down of the sterol and total PL biosynthesis pathways in AMF treated with anthracene. The negative impact of the organic pollutant on AMF membrane lipid biosynthesis may explain the growth inhibition of the fungus after PAH exposure. This study increases the understanding of the biochemical mechanisms involved in PAH ecotoxicity on AMF.
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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".