Abstract
UV-A radiation is a tool that has a stimulant action in plants and can be used to induce benefits through the production of bioactive compounds and the synthesis of secondary metabolites, among others. Particularly, its application could stimulate tolerance to the biotic stress caused by Fusarium oxysporum f. sp. lycopersici (Fol) in tomato plants; for this reason, the aim of the present study was to evaluate the ability of UV-A radiation to stimulate tolerance against Fol. For this, a tomato crop was established in which two conditions of supplementation with UV-A radiation were tested on plants inoculated with the fungus Fol. The pathogen’s impact on the agronomic parameters, its incidence and severity, and the contents of stress biomarkers, secondary metabolites and photosynthetic pigments were determined. The results show that the impact of the pathogen on severity was about 60%; therefore, the impact on fruit yield was also negative (−31%). Moreover, the pathogen significantly impacted the content of stress biomarkers, and the positive control increased H2O2 (+23.9%), malondialdehyde (+41.7%) and proline (+54.8%). In contrast, UV-A radiation significantly decreased Fol severity (−35.5%), and prevented its negative effect on the tomato plant/fruit yield. In addition, the application of UV-A radiation decreased the contents of stress biomarkers (−10.4% O2•−, −22% H2O2, and −16% MDA), and increased the contents of secondary metabolites (+13.2% flavonoids, +35% anthocyanins) and photosynthetic pigments (+17% β-carotene, +12% yellow pigments, and +19.8% total chlorophyll) in the plants inoculated with the pathogen. From the results obtained, it can be concluded that the application of UV-A radiation is a good alternative means to control the attack of pathogens such as Fol on tomato plants, without adverse consequences for the environment or the crop.
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Claims 16
Claim · model-written summary
The pathogen produced about 60% disease severity.
- Taxon
- Tomato Plants
Solanum lycopersicumt0 - Interactor
- pathogene0pathogen
- Outcome
- severitye0
- Value
- 60%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results show that the impact of the pathogen on severity was about 60%”
t0“Tomato Plants”
Claim · model-written summary
The pathogen reduced fruit yield by 31%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- pathogene0
- Interactor
- pathogene0pathogen
- Outcome
- fruit yielde0
- Direction
- negativee0
- Value
- −31%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results show that the impact of the pathogen on severity was about 60%; therefore, the impact on fruit yield was also negative (−31%)”
t0“Tomato Plants”
Claim · model-written summary
The positive control increased H2O2 by 23.9%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- positive controle0
- Outcome
- H2O2e0
- Direction
- increasede0
- Value
- +23.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the positive control increased H2O2 (+23.9%), malondialdehyde (+41.7%) and proline (+54.8%)”
t0“Tomato Plants”
Claim · model-written summary
The positive control increased malondialdehyde by 41.7%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- positive controle0
- Outcome
- malondialdehydee0
- Direction
- increasede0
- Value
- +41.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the positive control increased H2O2 (+23.9%), malondialdehyde (+41.7%) and proline (+54.8%)”
t0“Tomato Plants”
Claim · model-written summary
The positive control increased proline by 54.8%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- positive controle0
- Outcome
- prolinee0
- Direction
- increasede0
- Value
- +54.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the positive control increased H2O2 (+23.9%), malondialdehyde (+41.7%) and proline (+54.8%)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation decreased Fusarium severity by 35.5%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- UV-A radiatione0
- Interactor
- Fole0pathogen
- Outcome
- Fol severitye0
- Direction
- decreasede0
- Value
- −35.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-A radiation significantly decreased Fol severity (−35.5%)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation prevented the negative effect of Fol on tomato yield.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- tomato plant/fruit yielde0
- Direction
- preventede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prevented its negative effect on the tomato plant/fruit yield”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation decreased O2•− content by 10.4%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- UV-A radiatione0
- Outcome
- O2•−e0
- Direction
- decreasede0
- Value
- −10.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of UV-A radiation decreased the contents of stress biomarkers (−10.4% O2•−, −22% H2O2, and −16% MDA)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation decreased H2O2 content by 22%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- UV-A radiatione0
- Outcome
- H2O2e0
- Direction
- decreasede0
- Value
- −22%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of UV-A radiation decreased the contents of stress biomarkers (−10.4% O2•−, −22% H2O2, and −16% MDA)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation decreased MDA content by 16%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- UV-A radiatione0
- Outcome
- MDAe0
- Direction
- decreasede0
- Value
- −16%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of UV-A radiation decreased the contents of stress biomarkers (−10.4% O2•−, −22% H2O2, and −16% MDA)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation increased flavonoid content by 13.2%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- flavonoidse0
- Direction
- increasede0
- Value
- +13.2%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the contents of secondary metabolites (+13.2% flavonoids, +35% anthocyanins)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation increased anthocyanin content by 35%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- anthocyaninse0
- Direction
- increasede0
- Value
- +35%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the contents of secondary metabolites (+13.2% flavonoids, +35% anthocyanins)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation increased beta-carotene content by 17%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- β-carotenee0
- Value
- +17%e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“(+17% β-carotene, +12% yellow pigments, and +19.8% total chlorophyll)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation increased yellow pigment content by 12%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- yellow pigmentse0
- Value
- +12%e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“(+17% β-carotene, +12% yellow pigments, and +19.8% total chlorophyll)”
t0“Tomato Plants”
Claim · model-written summary
UV-A radiation increased total chlorophyll content by 19.8%.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- total chlorophylle0
- Value
- +19.8%e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“(+17% β-carotene, +12% yellow pigments, and +19.8% total chlorophyll)”
t0“Tomato Plants”
Claim · model-written summary
The authors recommend UV-A radiation to control Fol on tomato.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- UV-A radiatione0
- Interactor
- Fole0pathogen
- Outcome
- control the attack of pathogens such as Fol on tomato plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of UV-A radiation is a good alternative means to control the attack of pathogens such as Fol on tomato plants”
t0“Tomato Plants”
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