Salinity-induced changes in the root development of a northern woody species, <i>Cornus sericea</i>
Bibliographic record
Abstract
To study the salt-induced changes in root development, the roots of Cornus sericea L. exposed to NaCl (0, 50, and 100 mmol·L −1 ) for 4 weeks were sectioned at 1, 3, 5, 10, 15, and 25 cm from the tip, after having determined their increase in length. Observations were made on longitudinal and transverse sections from embedded tissues (stained with toluidine blue) and fresh tissues (examined under UV light or stained with Sudan red 7B or phloroglucinol-HCl). A modified outermost cortical layer was observed in C. sericea, suggesting the presence of a hypodermis or exodermis. While suberin was identified in the wall of the hypodermal cells, the presence of Casparian bands in these walls could not be clearly detected in sections stained with or without berberine-hemisulphate and aniline blue. Although the overall sequence of development of root tissues in C. sericea did not appear to be modified in salt-treated plants, the development of the hypodermis and endodermis occurred closer to the root tip in salt-treated plants. These altered root characteristics could have contributed to improve the salinity tolerance of the plants by limiting the amount of Na + and (or) Cl − reaching the shoots. Our results will provide useful information for the selection of boreal forest plants adequate for land reclamation, a major challenge for the oil sand industry faced with large areas of salt-affected land.
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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".