Cadmium tolerance and accumulation in the noxious weed <i>Zygophyllum fabago</i>
Bibliographic record
Abstract
Zygophyllum fabago L. is an invasive weed able to proliferate in coarse mineral substrates contaminated with heavy metals. To quantify its Cd tolerance, seedlings from seeds collected from a heavy metal contaminated area in Southeast Spain were exposed for 4 weeks to a nutrient solution containing 10 µmol·L–1 CdCl2. Although Cd inhibited axillary bud development, it did not reduce plant survival or dry mass. Most of the absorbed Cd remained in the roots, but the shoots were able to accumulate up to 156 mg·kg–1 dry mass of Cd. Zygophyllum fabago was able to regulate Cd translocation from roots to shoots, where it accumulated preferentially in the older leaves. Accumulation of Cd reduced the water content and water potential in shoots, as well as osmotic potential and leaf stomatal conductance in young leaves, although the plants were able to partly adapt to reestablish a more favourable water balance after 4 weeks of stress exposure. The population displayed considerable heterogeneity, and it may be possible to select individual plants combining high biomass production and a high rate of Cd accumulation. The use of Z. fabago as a Cd-tolerant species for phytoremediation is discussed.
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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) | 0.000 | 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 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".