Abstract
We show that both the immediate and post-irradiation oxygen effects in barley seeds decrease in magnitude in the presence of potassium permanganate and caffeine. This implies that these two types of oxygen effect have features in common. With the removal of the radiation-induced oxygen-sensitive sites, by anoxic hydration, caffeine potentiates the oxygen-independent component of damage, in seeds irradiated in a dry or pre-soaked state. Potassium permangenate, on the other hand, enhances the anoxic radiation damage only in seeds irradiated in a dry state. The possible mode of action of KMnO4 and caffeine in barley seeds is discussed.
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Claims 3
Claim · model-written summary
Potassium permanganate and caffeine decrease the immediate and post-irradiation oxygen effects in barley seeds.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Organ / stage
- seedse0
- Treatment
- potassium permanganate and caffeinee1
- Outcome
- immediate and post-irradiation oxygen effectse0
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“We show that both the immediate and post-irradiation oxygen effects in barley seeds”
e1“decrease in magnitude in the presence of potassium permanganate and caffeine”
Claim · model-written summary
Caffeine potentiates the oxygen-independent component of radiation damage in barley seeds after anoxic hydration.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- seedse2
- Treatment
- caffeinee2
- Outcome
- oxygen-independent component of damagee2
- Direction
- potentiatese2
- Qualifier
- in seeds irradiated in a dry or pre-soaked statee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We show that both the immediate and post-irradiation oxygen effects in barley seeds”
e2“With the removal of the radiation-induced oxygen-sensitive sites, by anoxic hydration, caffeine potentiates the oxygen-independent component of damage, in seeds irradiated in a dry or pre-soaked state”
Claim · model-written summary
Potassium permangenate enhances anoxic radiation damage in barley seeds only when they are irradiated dry.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- seedse3
- Treatment
- Potassium permangenatee3
- Outcome
- anoxic radiation damagee3
- Direction
- enhancese3
- Qualifier
- only in seeds irradiated in a dry statee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We show that both the immediate and post-irradiation oxygen effects in barley seeds”
e3“Potassium permangenate, on the other hand, enhances the anoxic radiation damage only in seeds irradiated in a dry state”
The same questions in other papers
caffeine · pest · Hordeum vulgare (barley)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →potassium · pest · Hordeum vulgare (barley)Positive and negative results
1 in the opposite direction
- positive
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.