Photodynamic Inactivation as a New Weapon Against Plant Fire Blight Disease: Proof of a New Dawn of Environmentally Friendly Crop Protection
Bibliographic record
Abstract
High Resolution Image Download MS PowerPoint Slide Fire blight, caused by Erwinia amylovora, severely affects apple and pear orchards on a global scale. Conventional treatment includes the application of antibiotics such as streptomycin during bloom, which promotes resistance. Photodynamic inactivation (PDI) is based on the light-induced and photosensitizer-mediated overproduction of reactive oxygen species for killing microbes. This study develops PDI using the natural photosensitizer sodium magnesium chlorophyllin (Chl) from the laboratory to field application. Laboratory experiments showed commercial-ready SUN-D products (Chl + EDTA) were highly effective against E. amylovora (395 nm LED, total kill at 53.2 J cm –2 ), regardless of streptomycin resistance phenotype. No resistance to Chl developed after 15 treatment cycles. Molecular dynamics simulations suggest that EDTA lowers the energy barrier for chlorin e6, enhancing membrane penetration. Field trials at two locations using sunlight illumination showed that SUN-D controlled blossom blight comparably to antibiotics. Photodynamic inactivation with SUN-D offers a promising, resistance-independent addition to current fire blight management strategies.
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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".