Abstract
Abstract The application of ultraviolet‐light C (UV‐C, 254 nm) hormesis on tomato fruits to stimulate beneficial responses is a new method of inducing host resistance to Rhizopus soft rot, with maximum protection at 72 h following artificial inoculation with Rhizopus stolonifer and delay fruit ripening. In the tomato‐Rhizopus soft rot pathosystem, UV‐C induced resistance of tomatoes to soft rot was reversed by fluorescent light, and not by storage under dark condition. The present study was aimed at finding a possible fungal toxic mechanism that was involved in the control of Rhizopus soft rot. The development of carotenoids, loss of chlorophyll and ethylene production were significantly retarded during storage after treatment with hormetic doses of UV‐C. The delayed ripening of UV‐C treated fruits was attributed in part to the high level of putrescine and spermine polyamines. In a time‐control study, it was found that the resistance of UV‐C‐treated tomatoes artificially inoculated with R. stolonifer correlated with a high concentration of tomatine which accumulated up to 72 h after UV‐C treatment. However, there was a higher tomatine content in UV‐C‐treated fruits compared to untreated fruits where it was transitory at 96 h after treatment in the time‐course study.
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Claims 9
Claim · model-written summary
UV-C induced resistance to Rhizopus soft rot, with maximum protection at 72 h after inoculation.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- ultraviolet‐light C (UV‐C, 254 nm)e0
- Interactor
- Rhizopus stolonifer
Rhizopus stolonifere0pathogen - Outcome
- resistance to Rhizopus soft rote0
- Value
- 72 he0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ultraviolet‐light C (UV‐C, 254 nm) hormesis on tomato fruits to stimulate beneficial responses is a new method of inducing host resistance to Rhizopus soft rot, with maximum protection at 72 h following artificial inoculation with Rhizopus stolonifer”
Claim · model-written summary
UV-C delayed tomato fruit ripening.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- UV‐Ct0
- Outcome
- fruit ripeninge0
- Direction
- delaye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“delay fruit ripening”
t0“Application of Hormetic UV‐C for Delayed Ripening and Reduction of Rhizopus Soft Rot in Tomatoes”
Claim · model-written summary
Fluorescent light reversed UV-C induced soft rot resistance.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- fluorescent lighte0
- Outcome
- resistance of tomatoes to soft rote0
- Direction
- reversede0
- Comparator
- storage under dark conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV‐C induced resistance of tomatoes to soft rot was reversed by fluorescent light, and not by storage under dark condition”
Claim · model-written summary
Dark storage did not reverse UV-C induced soft rot resistance.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- storage under dark conditione0
- Outcome
- resistance of tomatoes to soft rote0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV‐C induced resistance of tomatoes to soft rot was reversed by fluorescent light, and not by storage under dark condition”
Claim · model-written summary
UV-C significantly retarded carotenoid development and chlorophyll loss during storage.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- hormetic doses of UV‐Ce0
- Outcome
- development of carotenoids, loss of chlorophylle0
- Direction
- retardede0
- Setting
- during storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The development of carotenoids, loss of chlorophyll and ethylene production were significantly retarded during storage after treatment with hormetic doses of UV‐C”
t0“Tomatoes”
Claim · model-written summary
UV-C significantly retarded ethylene production during storage.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- hormetic doses of UV‐Ce0
- Outcome
- ethylene productione0
- Direction
- retardede0
- Setting
- during storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The development of carotenoids, loss of chlorophyll and ethylene production were significantly retarded during storage after treatment with hormetic doses of UV‐C”
t0“Tomatoes”
Claim · model-written summary
The authors attributed delayed ripening partly to high putrescine and spermine levels.
- Taxon
- TomatoesSolanum lycopersicumt0
- Compound
- putrescine and spermine polyaminese0
- Outcome
- delayed ripeninge0
- Qualifier
- in parte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The delayed ripening of UV‐C treated fruits was attributed in part to the high level of putrescine and spermine polyamines”
t0“Tomatoes”
Claim · model-written summary
Resistance of UV-C treated inoculated tomatoes correlated with tomatine concentration through 72 h.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- UV‐Ce0
- Interactor
- R. stoloniferRhizopus stolonifere0pathogen
- Compound
- tomatinee0
- Outcome
- resistancee0
- Qualifier
- up to 72 he0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the resistance of UV‐C‐treated tomatoes artificially inoculated with R. stolonifer correlated with a high concentration of tomatine which accumulated up to 72 h after UV‐C treatment”
Claim · model-written summary
UV-C treated fruit had higher tomatine content than untreated fruit, transiently at 96 h.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- UV‐Ce0
- Outcome
- tomatine contente0
- Direction
- highere0
- Qualifier
- transitory at 96 h after treatmente0
- Comparator
- untreated fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a higher tomatine content in UV‐C‐treated fruits compared to untreated fruits where it was transitory at 96 h after treatment”
t0“Tomatoes”
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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.