Abstract
Modern agriculture faces increasing pressure to meet global food demands, leading to intensified practices such as excessive fertilizer use and land expansion, which contribute significantly to greenhouse gas emissions and resource depletion. Climate change further exacerbates these challenges by altering pathogen dynamics and expanding the geographical range of plant diseases. In this context, ultraviolet (UV) light emerges as a promising tool to reduce fertilizer dependency and control plant pathogens under greenhouse conditions. Moderate doses of UV-B and UV-C have been shown to enhance plant growth, flowering, and defence responses. This study investigates the effects of pre-flowering low-doses UV-B and UV-C radiation on the physiology of tomato plants ( Solanum lycopersicum L.), focusing on biometric traits, photosynthetic performance, flowering and oxidative/redox status. Additionally, the potential of UV treatments to reduce infection by Pseudomonas syringae , a model phytopathogenic bacterium, is evaluated. Initial assays revealed that a 3-minute weekly UV treatment significantly enhanced plant height, flower onset, and photosynthetic efficiency, while avoiding photodamage observed at higher doses. Enhanced pigment content and reduced non-photochemical quenching indicated optimal light utilization. Moderate oxidative stress, evidenced by increased malondialdehyde (MDA) levels, was accompanied by elevated phenolic compounds, suggesting an adaptive antioxidant response. Furthermore, plants pre-treated with the 3-minute UV dose exhibited reduced pathogen infection, likely due to the activation of innate immunity as suggested by enhanced PR2 and PR3 expression. These findings support the use of controlled UV irradiation as a powerful strategy to improve crop productivity and resilience in sustainable agricultural systems.
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Claims 12
Claim · model-written summary
Three-minute weekly UV treatment significantly increased tomato height.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- 3-minute weekly UV treatmente0
- Outcome
- plant heighte0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a 3-minute weekly UV treatment significantly enhanced plant height, flower onset, and photosynthetic efficiency”
t0“tomato”
Claim · model-written summary
Three-minute weekly UV treatment significantly advanced tomato flower onset.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 3-minute weekly UV treatmente0
- Outcome
- flower onsete0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a 3-minute weekly UV treatment significantly enhanced plant height, flower onset, and photosynthetic efficiency”
t0“tomato”
Claim · model-written summary
Three-minute weekly UV treatment significantly enhanced tomato photosynthetic efficiency.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 3-minute weekly UV treatmente0
- Outcome
- photosynthetic efficiencye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a 3-minute weekly UV treatment significantly enhanced plant height, flower onset, and photosynthetic efficiency”
t0“tomato”
Claim · model-written summary
Higher UV doses produced photodamage that was avoided with three-minute treatment.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- a 3-minute weekly UV treatmente1
- Outcome
- photodamagee0
- Direction
- avoidinge0
- Comparator
- higher dosese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while avoiding photodamage observed at higher doses”
e1“a 3-minute weekly UV treatment”
t0“tomato”
Claim · model-written summary
UV-treated tomato had enhanced pigment content.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- pigment contente0
- Direction
- Enhancede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Enhanced pigment content and reduced non-photochemical quenching indicated optimal light utilization.”
t0“tomato”
Claim · model-written summary
UV-treated tomato had reduced non-photochemical quenching.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- non-photochemical quenchinge0
- Direction
- reducede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Enhanced pigment content and reduced non-photochemical quenching indicated optimal light utilization.”
t0“tomato”
Claim · model-written summary
UV treatment increased tomato malondialdehyde levels, indicating moderate oxidative stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- malondialdehyde (MDA) levelse0
- Direction
- increasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moderate oxidative stress, evidenced by increased malondialdehyde (MDA) levels”
t0“tomato”
Claim · model-written summary
UV treatment elevated tomato phenolic compounds.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- phenolic compoundse0
- Direction
- elevatede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was accompanied by elevated phenolic compounds, suggesting an adaptive antioxidant response”
t0“tomato”
Claim · model-written summary
Three-minute UV pretreatment reduced Pseudomonas syringae infection in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 3-minute UV dosee0
- Interactor
- Pseudomonas syringae
Pseudomonas syringaee1pathogen - Outcome
- pathogen infectione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants pre-treated with the 3-minute UV dose exhibited reduced pathogen infection”
e1“Pseudomonas syringae”
t0“tomato”
Claim · model-written summary
UV pretreatment enhanced PR2 and PR3 expression in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- PR2 and PR3e0
- Outcome
- PR2 and PR3 expressione0
- Direction
- enhancede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced PR2 and PR3 expression”
t0“tomato”
Claim · model-written summary
The authors suggest innate immunity activation explains reduced infection after UV pretreatment.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- PR2 and PR3e0
- Outcome
- reduced pathogen infectione0
- Qualifier
- activation of innate immunitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced pathogen infection, likely due to the activation of innate immunity as suggested by enhanced PR2 and PR3 expression”
t0“tomato”
Claim · model-written summary
The authors support controlled UV irradiation to improve crop productivity and resilience.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- use of controlled UV irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“support the use of controlled UV irradiation as a powerful strategy to improve crop productivity and resilience in sustainable agricultural systems”
t0“tomato”
The same questions in other papers
uv · physiology: photosynthesis · Solanum lycopersicum (tomato)Results differ
2 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- no effect
7 papers more in this group
See all 11 papers →uv · growth · Solanum lycopersicum (tomato)Results differ
11 papers in the same direction as this paper · 15 in the opposite direction
- negative
- negative
- negative
23 papers more in this group
See all 27 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.