Abstract
Plants can be exposed to ionising radiation not only in Space but also on Earth, due to specific technological applications or after nuclear disasters. The response of plants to ionising radiation depends on radiation quality/quantity and/or plant characteristics. In this paper, we analyse some growth traits, leaf anatomy, and ecophysiological features of plants of Solanum lycopersicum L. "Microtom" grown from seeds irradiated with increasing doses of X-rays (0.3, 10, 20, 50, and 100 Gy). Both juvenile and compound leaves from plants developed from irradiated and control seeds were analysed through light and epifluorescence microscopy. Digital image analysis allowed quantifying anatomical parameters to detect the occurrence of signs of structural damage. Fluorescence parameters and total photosynthetic pigment content were analysed to evaluate the functioning of the photosynthetic machinery. Radiation did not affect percentage and rate of seed germination. Plants from irradiated seeds accomplished the crop cycle and showed a more compact habitus. Dose-depended tendencies of variations occurred in phenolic content, while other leaf anatomical parameters did not show distinct trends after irradiation. The sporadic perturbations of leaf structure, observed during the vegetative phase, after high levels of radiation were not so severe as to induce any significant alterations in photosynthetic efficiency.
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Claims 7
Claim · model-written summary
X-ray seed irradiation did not affect seed germination percentage or rate.
- Taxon
- Solanum lycopersicum L.
Solanum lycopersicume0 - Treatment
- irradiatede2
- Outcome
- percentage and rate of seed germinatione1
- Direction
- did not affecte1
- Comparator
- control seedse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solanum lycopersicum L.”
e1“Radiation did not affect percentage and rate of seed germination.”
e2“plants developed from irradiated and control seeds”
Claim · model-written summary
Plants from irradiated seeds completed the crop cycle.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicume0
- Treatment
- irradiated seedse1
- Outcome
- accomplished the crop cyclee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solanum lycopersicum L.”
e1“Plants from irradiated seeds accomplished the crop cycle”
Claim · model-written summary
Plants from irradiated seeds had a more compact habitus.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicume0
- Treatment
- irradiated seedse1
- Outcome
- habituse1
- Direction
- more compacte1
- Comparator
- control seedse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solanum lycopersicum L.”
e1“Plants from irradiated seeds accomplished the crop cycle and showed a more compact habitus”
e2“irradiated and control seeds”
Claim · model-written summary
Leaf phenolic content varied with irradiation dose.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicume0
- Treatment
- Dosee1
- Outcome
- phenolic contente1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solanum lycopersicum L.”
e1“Dose-depended tendencies of variations occurred in phenolic content”
Claim · model-written summary
Other leaf anatomical parameters showed no distinct trend after irradiation.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicume0
- Treatment
- irradiatione1
- Outcome
- leaf anatomical parameterse1
- Direction
- did not show distinct trendse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solanum lycopersicum L.”
e1“other leaf anatomical parameters did not show distinct trends after irradiation”
Claim · model-written summary
High radiation caused sporadic leaf-structure perturbations in the vegetative phase.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicume0
- Organ / stage
- vegetative phasee1
- Treatment
- high levels of radiatione1
- Outcome
- sporadic perturbations of leaf structuree1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solanum lycopersicum L.”
e1“The sporadic perturbations of leaf structure, observed during the vegetative phase, after high levels of radiation”
Claim · model-written summary
Leaf-structure perturbations after high radiation were insufficient to significantly alter photosynthetic efficiency.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicume0
- Treatment
- high levels of radiatione1
- Outcome
- photosynthetic efficiencye1
- Direction
- not so severe as to induce any significant alterationse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solanum lycopersicum L.”
e1“after high levels of radiation were not so severe as to induce any significant alterations in photosynthetic efficiency”
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See all 10 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.