Changes in phenylpropanoid pathway gene expression in roots and leaves of susceptible and resistant Brassica napus lines in response to Plasmodiophora brassicae inoculation
Bibliographic record
Abstract
Clubroot, caused by the obligate parasite Plasmodiophora brassicae , is currently one of the most severe diseases of the Brassicaceae. As a soil-borne pathogen, P. brassicae infects the roots of host plants, inducing the formation of galls and negatively affecting plant growth and productivity. Roots and leaves of two clubroot susceptible and one resistant Brassica napus lines, inoculated with P. brassicae spores, were monitored for disease progression at four time points after inoculation. Quantitative gene expression analysis of phenylpropanoid pathway genes in these tissues showed increased expression of several genes involved in lignin biosynthesis in response to infection. In leaves, a higher expression of genes involved in flavonoid biosynthesis was also observed. In both roots and leaves of the resistant line, phenylpropanoid pathway genes were upregulated at more time points and at higher levels than in susceptible lines. The differential expression of phenylpropanoid pathway genes between resistant and susceptible lines, suggests that this pathway is instrumental in resistance to clubroot disease progression in the resistant line.
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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 | 0.001 | 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 | 0.001 |
| 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".