Abstract
Plants develop systemic defense responses upon exposure to pathogens or wounding by herbivores. Lipids and lipid metabolites have previously been implicated in induction of defense molecules during plant responses to physical wounding. Possible involvement of changes in lipid composition in systemic wound signal transduction was examined in leaves of seedlings of several different plant species. In the wounded tomato leaf, phosphatidic acid increased approximately fourfold within 5 min whereas lysophosphatidylcholine and lysophosphatidylethanolamine increased over twofold within 15 min of wounding. Similar changes in these lipids were observed in the neighboring non‐wounded leaf. In broad bean, soybean, sunflower and pepper seedlings phosphatidic acid levels increased rapidly and systemically upon wounding. The results suggest that the role of phospholipid hydrolysis and accumulation of lipid metabolites in the early events are responsible for systemic wound signal transduction in plants. Furthermore, they indicate that the wound signal propagates outside the wounded leaf within 5 min in these plants.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Phosphatidic acid in wounded tomato leaves increased approximately fourfold within five minutes.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- leafe0
- Treatment
- woundede0
- Outcome
- phosphatidic acide0
- Direction
- increasede0
- Value
- approximately fourfolde0
- Qualifier
- within 5 mine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the wounded tomato leaf, phosphatidic acid increased approximately fourfold within 5 min”
Claim · model-written summary
Lysophosphatidylcholine in wounded tomato leaves increased over twofold within 15 minutes.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- woundinge0
- Outcome
- lysophosphatidylcholinee0
- Direction
- increasede0
- Value
- over twofolde0
- Qualifier
- within 15 mine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the wounded tomato leaf, phosphatidic acid increased approximately fourfold within 5 min whereas lysophosphatidylcholine and lysophosphatidylethanolamine increased over twofold within 15 min of wounding”
Claim · model-written summary
Lysophosphatidylethanolamine in wounded tomato leaves increased over twofold within 15 minutes.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- woundinge0
- Outcome
- lysophosphatidylethanolaminee0
- Direction
- increasede0
- Value
- over twofolde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the wounded tomato leaf, phosphatidic acid increased approximately fourfold within 5 min whereas lysophosphatidylcholine and lysophosphatidylethanolamine increased over twofold within 15 min of wounding”
Claim · model-written summary
The same lipids changed in the neighboring unwounded tomato leaf.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- neighboring non‐wounded leafe0
- Outcome
- Similar changes in these lipidse0
- Direction
- Similar changese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar changes in these lipids were observed in the neighboring non‐wounded leaf”
e1“In the wounded tomato leaf”
Claim · model-written summary
Broad bean seedlings showed a rapid systemic rise in phosphatidic acid after wounding.
- Taxon
- broad bean
Vicia fabae0 - Treatment
- woundinge0
- Outcome
- phosphatidic acid levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In broad bean, soybean, sunflower and pepper seedlings phosphatidic acid levels increased rapidly and systemically upon wounding”
Claim · model-written summary
Soybean seedlings showed a rapid systemic rise in phosphatidic acid after wounding.
- Taxon
- soybean
Glycine maxe0 - Treatment
- woundinge0
- Outcome
- phosphatidic acid levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In broad bean, soybean, sunflower and pepper seedlings phosphatidic acid levels increased rapidly and systemically upon wounding”
Claim · model-written summary
Sunflower seedlings showed a rapid systemic rise in phosphatidic acid after wounding.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- woundinge0
- Outcome
- phosphatidic acid levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In broad bean, soybean, sunflower and pepper seedlings phosphatidic acid levels increased rapidly and systemically upon wounding”
Claim · model-written summary
Pepper seedlings showed a rapid systemic rise in phosphatidic acid after wounding.
Not reportedComparator
Verbatim
e0“In broad bean, soybean, sunflower and pepper seedlings phosphatidic acid levels increased rapidly and systemically upon wounding”
Claim · model-written summary
The authors infer phospholipid hydrolysis and lipid metabolite accumulation contribute to systemic wound signaling.
- Taxon
- plantsViridiplantaee0
- Outcome
- systemic wound signal transductione0
- Qualifier
- phospholipid hydrolysis and accumulation of lipid metabolitese0
Verbatim
e0“phospholipid hydrolysis and accumulation of lipid metabolites in the early events are responsible for systemic wound signal transduction in plants”
Claim · model-written summary
The wound signal was inferred to propagate beyond the wounded leaf within five minutes.
- Taxon
- plantsViridiplantaee0
- Outcome
- wound signal propagates outside the wounded leafe0
- Qualifier
- within 5 mine0
Not reportedDirection
Verbatim
e0“the wound signal propagates outside the wounded leaf within 5 min in these plants”
The same questions in other papers
mechanical · molecular: metabolites · Helianthus annuus (common sunflower)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
mechanical · molecular: metabolites · Glycine max (soybean)Positive and negative results
4 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- negative
- no effect
5 papers more in this group
See all 9 papers →mechanical · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
6 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
6 papers more in this group
See all 10 papers →mechanical · molecular: metabolites · Vicia faba (faba bean)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.