Abstract
The aim of this study was to examine the effect of salicylic acid on the gene expression pattern of four enzymes; Phenylalanine ammonialyase, Polyphenol oxidase, Peroxidase and Catalase in wheat-Mycosphaerella graminicola pathosystem. For this reason, Salicylic Acid (2mm) were sprayed on wheat in two-leaf stage before inoculation with the fungal pathogen. Sampling of the plants was done at five time points (0, 3, 6, 12 and 24 h) after inoculation. The scanning of genes expression pattern of encoding enzymes were carried out by reverse northern dot blotting method. The results showed that within 24 hours post inoculation the gene expression of these enzymes significantly increased in this tolerant cultivar. SA enhanced the expression of Phenylalanine ammonialyase and Peroxidase genes in all time points. The expression of Polyphenol oxidase was increased by SA after 12h. On the other hand, increasing the expression level of these genes directly increases the activity of the enzymes which indicates direct role of these gens in plant defense system. SA caused a rapid rise in expression of Catalase gene, but this effect was not continued for 24h.
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Claims 5
Claim · model-written summary
Salicylic acid enhanced expression of Phenylalanine ammonialyase and Peroxidase genes in wheat at all time points.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- SAe1
- Gene
- Phenylalanine ammonialyase and Peroxidasee1
- Outcome
- expressione1
- Direction
- enhancede1
- Qualifier
- in all time pointse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“defense genes expression profile pattern of wheat”
e1“SA enhanced the expression of Phenylalanine ammonialyase and Peroxidase genes in all time points”
Claim · model-written summary
Salicylic acid increased Polyphenol oxidase gene expression in wheat after 12 h.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SAe2
- Gene
- Polyphenol oxidasee2
- Outcome
- expressione2
- Direction
- increasede2
- Qualifier
- after 12he2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“defense genes expression profile pattern of wheat”
e2“The expression of Polyphenol oxidase was increased by SA after 12h”
Claim · model-written summary
Salicylic acid caused a rapid rise in Catalase gene expression in wheat that was not continued for 24 h.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SAe3
- Gene
- Catalasee3
- Outcome
- expressione3
- Direction
- rapid risee3
- Qualifier
- not continued for 24he3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“defense genes expression profile pattern of wheat”
e3“SA caused a rapid rise in expression of Catalase gene, but this effect was not continued for 24h”
Claim · model-written summary
Within 24 h after inoculation, gene expression of these enzymes significantly increased in the tolerant wheat cultivar.
- Taxon
- wheatTriticum aestivumt0
- Material
- this tolerant cultivare4
- Treatment
- inoculatione4
- Outcome
- gene expression of these enzymese4
- Direction
- increasede4
- Qualifier
- within 24 hourse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“defense genes expression profile pattern of wheat”
e4“within 24 hours post inoculation the gene expression of these enzymes significantly increased in this tolerant cultivar”
Claim · model-written summary
Increased expression of these genes is taken to increase enzyme activity directly, indicating a direct role in wheat defense.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- activity of the enzymese5
- Qualifier
- direct role of these gens in plant defense systeme5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“defense genes expression profile pattern of wheat”
e5“On the other hand, increasing the expression level of these genes directly increases the activity of the enzymes which indicates direct role of these gens in plant defense system”
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See all 47 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.