Abstract
Seeds of Raphanus sativus L. were irradiated with 120 and 240 Kr of gamma rays from a 137Cs source. Chlorophyll synthesis and fresh weight increases (an estimate of cell expansion) of isolated cotyledons proved to be radioresistant processes. A lag phase in chlorophyll synthesis, removable by kinetin (10 mg/liter), was observed. Gamma radiation decreased the reactivity to kinetin in the removal of the lag phase, but did not affect the kinetin-stimulated fresh weight increase both in light and dark. Addition of 8-azaguanine to the incubation media reduced the kinetin-stimulated fresh weight increase. This inhibition was significantly enhanced by gamma radiation when the cotyledons were incubated in light.
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Claims 7
Claim · model-written summary
Chlorophyll synthesis in radish cotyledons resisted gamma radiation.
- Taxon
- Raphanus sativus L.
Raphanus sativuse0 - Treatment
- 120 and 240 Kr of gamma rayse0
- Outcome
- Chlorophyll synthesise0
- Direction
- radioresistante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of Raphanus sativus L. were irradiated with 120 and 240 Kr of gamma rays from a 137Cs source. Chlorophyll synthesis and fresh weight increases (an estimate of cell expansion) of isolated cotyledons proved to be radioresistant processes.”
Claim · model-written summary
Fresh-weight increase in radish cotyledons resisted gamma radiation.
- Taxon
- Raphanus sativus L.Raphanus sativuse0
- Treatment
- 120 and 240 Kr of gamma rayse0
- Outcome
- fresh weight increasese0
- Direction
- radioresistante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of Raphanus sativus L. were irradiated with 120 and 240 Kr of gamma rays from a 137Cs source. Chlorophyll synthesis and fresh weight increases (an estimate of cell expansion) of isolated cotyledons proved to be radioresistant processes.”
Claim · model-written summary
Kinetin removed the lag in chlorophyll synthesis.
- Taxon
- radishRaphanus sativust0
- Treatment
- kinetin (10 mg/liter)e0
- Outcome
- lag phase in chlorophyll synthesise0
- Direction
- removablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A lag phase in chlorophyll synthesis, removable by kinetin (10 mg/liter), was observed.”
t0“radish”
Claim · model-written summary
Gamma radiation reduced kinetin’s ability to remove the chlorophyll synthesis lag.
- Taxon
- radishRaphanus sativust0
- Treatment
- Gamma radiatione0
- Outcome
- reactivity to kinetine0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gamma radiation decreased the reactivity to kinetin in the removal of the lag phase”
t0“radish”
Claim · model-written summary
Gamma radiation did not affect kinetin-stimulated fresh-weight increase in light or dark.
- Taxon
- radishRaphanus sativust1
- Treatment
- gamma radiationt0
- Outcome
- kinetin-stimulated fresh weight increasee0
- Direction
- did not affecte0
- Qualifier
- both in light and darke0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“did not affect the kinetin-stimulated fresh weight increase both in light and dark.”
t0“gamma radiation”
t1“radish”
Claim · model-written summary
8-azaguanine reduced kinetin-stimulated fresh-weight increase.
- Taxon
- radishRaphanus sativust0
- Treatment
- 8-azaguaninee0
- Outcome
- kinetin-stimulated fresh weight increasee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of 8-azaguanine to the incubation media reduced the kinetin-stimulated fresh weight increase.”
t0“radish”
Claim · model-written summary
Gamma radiation significantly enhanced 8-azaguanine inhibition in illuminated cotyledons.
- Taxon
- radishRaphanus sativust0
- Treatment
- gamma radiatione0
- Outcome
- inhibitione0
- Direction
- enhancede0
- Qualifier
- cotyledons were incubated in lighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This inhibition was significantly enhanced by gamma radiation when the cotyledons were incubated in light.”
t0“radish”
The same questions in other papers
kinetin · physiology: pigments · Raphanus sativus (radish)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
radiation · growth · Raphanus sativus (radish)Positive and negative results
1 paper in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →radiation · physiology: pigments · Raphanus sativus (radish)Results agree
1 paper in the same direction as this paper
- negative
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.