Host–pathogen
Does red light help tomatoes fight bacteria?
Open access · cc by · source: Europe PMC
Tomato resistance to DC3000 peaks at 8:00 AM, bottoms at 8:00 PM, and is strongly enhanced by red light.
How this study connects
Role on claims
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Time-of-day and mixed-culture design change the biological contrast RNA-seq is actually making. Tomato–DC3000 resistance was highest at 08:00 and susceptibility at 20:00, with red light the most disease-suppressive wavelength among those tested; in a chemostat co-culture, L. thermotolerans contributed about 24% of transcripts anaerobically versus about 8% aerobically.
Evidence for the claim as stated.
How far a transcriptome may be generalised is itself in dispute in these papers. Tomato red-light findings are not automatically all crops; mixed-yeast dilution rates are experimental; LCL methylation–expression links may not hold in primary tissues; coral DEGs do not settle field etiology.
Evidence for the claim as stated.
Open questions
Tensions this paper is part of
From concept pages' “where studies disagree.” Disagreement means the same question; scope means different assays, populations, or outcomes.
How far a transcriptome may be generalised is itself in dispute in these papers. Tomato red-light findings are not automatically all crops; mixed-yeast dilution rates are experimental; LCL methylation–expression links may not hold in primary tissues; coral DEGs do not settle field etiology.
- Supports · What do co-fermenting yeasts express together?
- Supports · Genetics shapes methylation and expression
- Supports · Coral gene expression in white syndromes
Study at a glance
- Design
- Animal / in-vitro — Diurnal/wavelength treatments of tomato–Pto DC3000 with RNA-seq of red-light effects
- N
- N=12 · 12 single-end RNA-seq samples from four treatments
- Population
- Tomato plants challenged with Pseudomonas syringae pv. tomato DC3000
- Outcome
- Red-light modulation of disease resistance and related transcriptomes
Structured fields used in claim comparison tables when every cited study has a complete layer.
Inspect source passages
Does red light help tomatoes fight bacteria?
These passages occur verbatim in the stored paper text. They support the points listed below; they do not verify every statement in the explanation.
Immune framework for diurnal change?
PAMP)-triggered immune responses modulated by the circadian clock [].
Why daytime defense often stronger?
attributed to the length of the light period following infection [].
Key findings
Resistance is highest at 8:00 AM and susceptibility at 8:00 PM; red light most notably suppresses disease among tested wavelengths, tied to PAMP-triggered immunity timing.
Methodology
Assayed diurnal resistance and wavelength treatments, using RNA-seq to probe red-light effects on tomato–DC3000 interactions.
Limitations
Not automatically generalizable to all crops/pathogens without further tests.
Related papers in this topic
Same topic cluster — not a recommendation engine.