Abstract
The effect of porous hydrated calcium silicate (PS) application on the resistance of rice plants ( Oryza sativa L.) to rice blast (Pyricularia olyzae) was evaluated. Experiments were conducted in Andisol at the experimental farm of Tohoku University from 1993 to 1995. The blast infection in the PS plot was much less than that in the control plot. On the other hand, slag (commercial slag silicate fertilizer) used in our experiment had no effect on blast infection. The number of silicified bulliform cells, the main invasion site for rice blast, was increased 320-980% by PS application, but only 80% by commercial slag. These results imply that PS application is effective in preventing fungal infection through silicification of bulliform cells. The number of silicified bulliform and trichome cells increased exponentially with increasing content of the silicon in the leaf blade, whereas the number of silicified short cells, which are smaller than bulliform cells and trichomes, had no relation to the silicon content in the rice leaf blade. We may conclude that the application of porous hydrated calcium silicate for rice plants is effective in increasing rice blast resistance because PS increase the number of silicified bulliform cells.
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Claims 7
Claim · model-written summary
Blast infection was much lower after porous hydrated calcium silicate than in control rice plots.
- Taxon
- rice plants
Oryza sativae1 - Treatment
- PSe0
- Interactor
- Pyricularia olyzaee1pathogen
- Outcome
- blast infectione0
- Direction
- much lesse0
- Comparator
- control plote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The blast infection in the PS plot was much less than that in the control plot”
e1“porous hydrated calcium silicate (PS) application on the resistance of rice plants ( Oryza sativa L.) to rice blast (Pyricularia olyzae)”
Claim · model-written summary
Commercial slag had no effect on rice blast infection.
- Taxon
- rice plantOryza sativat0
- Treatment
- slage0
- Outcome
- blast infectione0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“slag (commercial slag silicate fertilizer) used in our experiment had no effect on blast infection”
t0“rice plant”
Claim · model-written summary
Porous hydrated calcium silicate increased silicified bulliform cells by 320-980%.
- Taxon
- rice plantOryza sativat0
- Treatment
- PS applicatione0
- Outcome
- number of silicified bulliform cellse0
- Direction
- increasede0
- Value
- 320-980%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of silicified bulliform cells, the main invasion site for rice blast, was increased 320-980% by PS application”
t0“rice plant”
Claim · model-written summary
Commercial slag increased silicified bulliform cells by 80%.
- Taxon
- rice plantOryza sativat0
- Treatment
- commercial slage0
- Outcome
- number of silicified bulliform cellse0
- Direction
- increasede0
- Value
- 80%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of silicified bulliform cells, the main invasion site for rice blast, was increased 320-980% by PS application, but only 80% by commercial slag”
t0“rice plant”
Claim · model-written summary
Silicified bulliform and trichome cell numbers increased exponentially with silicon content in rice leaf blades.
- Taxon
- riceOryza sativae1
- Organ / stage
- leaf bladee0
- Compound
- silicone0
- Outcome
- number of silicified bulliform and trichome cellse0
- Direction
- increased exponentiallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of silicified bulliform and trichome cells increased exponentially with increasing content of the silicon in the leaf blade”
e1“rice leaf blade”
Claim · model-written summary
Silicified short cell number had no relation to silicon content in rice leaves.
- Taxon
- riceOryza sativae0
- Compound
- silicone0
- Outcome
- number of silicified short cellse0
- Direction
- no relatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the number of silicified short cells, which are smaller than bulliform cells and trichomes, had no relation to the silicon content in the rice leaf blade”
Claim · model-written summary
The authors attribute increased rice blast resistance after PS application to more silicified bulliform cells.
- Taxon
- rice plantsOryza sativae0
- Treatment
- application of porous hydrated calcium silicatee0
- Outcome
- rice blast resistancee0
- Qualifier
- PS increase the number of silicified bulliform cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of porous hydrated calcium silicate for rice plants is effective in increasing rice blast resistance because PS increase the number of silicified bulliform cells”
The same questions in other papers
calcium silicate · disease · Oryza sativa (rice)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.