Abstract
Abstract Anthranilate synthase and chorismate mutase activities which control the flow of substrate from chorismate into the tryptophan pathway and into the phenylalanine/tyrosine pathway, respectively, were examined in three near isogenic wheat lines of Triticum aestivum L. (cv. Prelude Sr 5, highly resistant to stem rust infection; cv. Prelude Sr 24, moderately resistant; cv. Prelude srx, susceptible). The activities of both enzymes were found to increase in response to inoculation with the stem rust fungus Puccinia graminis f. sp. tritici or treatment with Pgt elicitor. Thus, both the tryptophan branch and the phenylalanine branch appear to contribute to the resistance response in wheat leaves. Only the cytosolic but not the plastidic fraction of the enzyme activities appears to be affected by fungal infection or elicitor treatment. Some differences with respect to degree and time dependency of enzyme activation were noticed between the three wheat lines following inoculation but not after treatment with the Pgt elicitor.
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Claims 5
Claim · model-written summary
Both enzyme activities increased after rust fungus inoculation.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- inoculation with the stem rust fungus Puccinia graminis f. sp. triticie1
- Interactor
- Puccinia graminis f. sp. tritici
Puccinia graminis f. sp. triticie1pathogen - Outcome
- activities of both enzymese1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat lines of Triticum aestivum L.”
e1“The activities of both enzymes were found to increase in response to inoculation with the stem rust fungus Puccinia graminis f. sp. tritici”
Claim · model-written summary
Both enzyme activities increased after Pgt elicitor treatment.
- Taxon
- wheatTriticum aestivume0
- Treatment
- treatment with Pgt elicitore1
- Outcome
- activities of both enzymese1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat lines of Triticum aestivum L.”
e1“The activities of both enzymes were found to increase in response to inoculation with the stem rust fungus Puccinia graminis f. sp. tritici or treatment with Pgt elicitor”
Claim · model-written summary
Only cytosolic enzyme activity appeared affected by fungal infection or elicitor treatment.
- Taxon
- wheatTriticum aestivume0
- Outcome
- cytosolic but not the plastidic fraction of the enzyme activitiese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat leaves”
e1“Only the cytosolic but not the plastidic fraction of the enzyme activities appears to be affected by fungal infection or elicitor treatment”
Claim · model-written summary
Enzyme activation differed in degree and timing among lines after inoculation but not elicitor treatment.
- Taxon
- wheatTriticum aestivume0
- Material
- three wheat linese1
- Outcome
- degree and time dependency of enzyme activatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“between the three wheat lines following inoculation”
e1“Some differences with respect to degree and time dependency of enzyme activation were noticed between the three wheat lines following inoculation but not after treatment with the Pgt elicitor”
Claim · model-written summary
Both tryptophan and phenylalanine branches appear to contribute to wheat leaf resistance.
- Taxon
- wheatTriticum aestivume0
- Outcome
- resistance responsee0
- Qualifier
- tryptophan branch and the phenylalanine branche0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both the tryptophan branch and the phenylalanine branch appear to contribute to the resistance response in wheat leaves”
The same questions in other papers
inoculation · physiology: enzyme activity · Triticum aestivum (wheat)Positive and negative results
28 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
27 papers more in this group
See all 31 papers →resistance inducer · physiology: enzyme activity · Triticum aestivum (wheat)Results agree
1 paper in the same direction as this paper
- 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.