Abstract
Using Triticum spelta, T. timopheevi, T. vulgare, and Oryza sativa, seedlings at 2 leaves were irradiated by X-rays or by gamma-rays, at 10, 30, 50 and 70kr. The seedlings were inoculated 1 and 7 days after irradiation by spraying with an aqueous uredospore suspension (Puccinia triticina 21 B), and the effects of radiation on the susceptibility to the leaf rust were observed. In seedlings of the same age, the first and second leaves were sampled, and the amounts of amino-nitrogen and reducing sugar were measured.Effects of irradiation on leaf characters, namely stomata size, internal structure, viability, and sporulation of the fungus on the irradiated leaves were examined. Rust susceptibility of the irradiated plants (T. spelta and T. vulgare) was increased, as compared with the non-irradiated plants. In T. timopheevi which was inoculated 7 days after irradiation, the third leaf was susceptible, while the first and second leaves of the same plants were mostly resistant. The irradiated rice plants remained immune.In T. timopheevi, the amount of amino-nitrogen was higher in the seedlings 1 day after irradiation, as compared with that of the non-irradiated seedlings, while it was lower 7 days after irradiation. The amount of reducing sugar increased seedlings 1 and 7 days after irradiation, in comparison with the non-irradiated seedlings. Stomata size and internal structure of the irradiated plants (T. spelta and T. vulgare) did not change noticeably, as compared with the non-irradiated plants.Effects of irradiation on the viability of leaves were tested. When the growing point suffered radiation damages, the already developed leaves longer the remained fresh than those of the non-irradiated plants. The uredosori of the leaf rust produced on irradiated T. vulgare were larger than on normal plants. Relationships between rust susceptibility an irradiation await further experiments.
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Claims 10
Claim · model-written summary
Irradiation increased rust susceptibility in T. spelta.
- Taxon
- T. spelta
_Locatie_De_Kruidhof.JPG?width=60)
Triticum speltae0 - Treatment
- irradiatede0
- Interactor
- ruste0pathogen
- Outcome
- Rust susceptibilitye0
- Direction
- increasede0
- Comparator
- non-irradiated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Locatie_De_Kruidhof.JPG?width=500)
Verbatim
e0“Rust susceptibility of the irradiated plants (T. spelta and T. vulgare) was increased, as compared with the non-irradiated plants”
Claim · model-written summary
Irradiation increased rust susceptibility in T. vulgare.
- Taxon
- T. vulgare
Triticum aestivume0 - Treatment
- irradiatede0
- Interactor
- ruste0pathogen
- Outcome
- Rust susceptibilitye0
- Direction
- increasede0
- Comparator
- non-irradiated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rust susceptibility of the irradiated plants (T. spelta and T. vulgare) was increased, as compared with the non-irradiated plants”
Claim · model-written summary
In irradiated T. timopheevi inoculated after seven days, the third leaf was susceptible while the first two were mostly resistant.
Verbatim
e0“In T. timopheevi which was inoculated 7 days after irradiation, the third leaf was susceptible, while the first and second leaves of the same plants were mostly resistant”
Claim · model-written summary
Irradiated rice plants remained immune to rust.
- Taxon
- rice
Oryza sativae0 - Treatment
- irradiatede0
- Outcome
- remained immunee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The irradiated rice plants remained immune”
Claim · model-written summary
In T. timopheevi, amino-nitrogen was higher one day after irradiation.
Verbatim
e0“In T. timopheevi, the amount of amino-nitrogen was higher in the seedlings 1 day after irradiation, as compared with that of the non-irradiated seedlings”
Claim · model-written summary
In T. timopheevi, amino-nitrogen was lower seven days after irradiation.
Not reportedComparator
Verbatim
e0“while it was lower 7 days after irradiation”
e1“In T. timopheevi, the amount of amino-nitrogen was higher in the seedlings 1 day after irradiation, as compared with that of the non-irradiated seedlings”
Claim · model-written summary
Reducing sugar increased at one and seven days after irradiation.
Verbatim
e0“The amount of reducing sugar increased seedlings 1 and 7 days after irradiation, in comparison with the non-irradiated seedlings”
e1“In T. timopheevi, the amount of amino-nitrogen was higher in the seedlings 1 day after irradiation, as compared with that of the non-irradiated seedlings”
Claim · model-written summary
Stomata size and internal structure did not change noticeably after irradiation.
- Taxon
- T. speltaTriticum speltae0
- Treatment
- irradiatede0
- Outcome
- Stomata size and internal structuree0
- Direction
- did not change noticeablye0
- Comparator
- non-irradiated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stomata size and internal structure of the irradiated plants (T. spelta and T. vulgare) did not change noticeably, as compared with the non-irradiated plants”
Claim · model-written summary
Damaged growing points were associated with already developed leaves remaining fresh longer.
- Taxon
- wheat seedlingsTriticum aestivumt0
- Treatment
- radiation damagese0
- Outcome
- already developed leaves longer the remained freshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the growing point suffered radiation damages, the already developed leaves longer the remained fresh than those of the non-irradiated plants”
t0“Effects of radiation on the susceptibility of wheat seedlings to leaf rust”
Claim · model-written summary
Leaf rust uredosori on irradiated T. vulgare were larger than on normal plants.
- Taxon
- T. vulgareTriticum aestivume0
- Treatment
- irradiatede0
- Interactor
- leaf ruste0pathogen
- Outcome
- uredosori of the leaf ruste0
- Direction
- largere0
- Comparator
- normal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The uredosori of the leaf rust produced on irradiated T. vulgare were larger than on normal plants”
The same questions in other papers
radiation · disease · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
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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.