Abstract
Plants under attack by pathogens and pests can mount a range of inducible defences, encompassing both chemical and structural changes. Although few reports exist, it appears that plants responding to pathogen or herbivore attack, or chemical defence elicitors, may produce progeny that are better able to defend themselves against attack, compared with progeny from unthreatened or untreated plants. To date, all research on transgenerational effects of biotic stress has been conducted on dicotyledenous plants. We examined the possibility that resistance induced by application of chemical defence elicitors to the monocot plant barley, could be passed on to the progeny. Plants were treated with acibenzolar-S-methyl (ASM) or saccharin, and grain harvested at maturity. Germination was unaffected in seed collected from plants treated with saccharin, while germination was reduced significantly in seed collected from ASM-treated plants. The subsequent growth of the seedlings was not significantly different in any of the treatments. However, plants from parents treated with both ASM or saccharin exhibited significantly enhanced resistance to infection by Rhynchosporium commune, despite not being treated with elicitor themselves. These data hint at the possibility of producing disease-resistant plants by exposing parent plants to chemical elicitors.
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Claims 5
Claim · model-written summary
Parental saccharin treatment did not affect barley seed germination.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree1 - Treatment
- saccharine0
- Outcome
- Germinatione0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Germination was unaffected in seed collected from plants treated with saccharin”
e1“monocot plant barley”
Claim · model-written summary
Parental ASM treatment significantly reduced barley seed germination.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- ASM-treatede0
- Outcome
- germinatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination was reduced significantly in seed collected from ASM-treated plants”
e1“monocot plant barley”
Claim · model-written summary
Parental elicitor treatment did not significantly change subsequent barley seedling growth.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- treatmentse0
- Outcome
- growth of the seedlingse0
- Direction
- not significantly differente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The subsequent growth of the seedlings was not significantly different in any of the treatments”
e1“monocot plant barley”
Claim · model-written summary
Barley offspring of ASM-treated parents had significantly enhanced resistance to Rhynchosporium commune infection.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- ASMe0
- Interactor
- Rhynchosporium communeRhynchosporium graminicolae0pathogen
- Outcome
- resistance to infectione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants from parents treated with both ASM or saccharin exhibited significantly enhanced resistance to infection by Rhynchosporium commune, despite not being treated with elicitor themselves”
e1“monocot plant barley”
Claim · model-written summary
Barley offspring of saccharin-treated parents had significantly enhanced resistance to Rhynchosporium commune infection.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- saccharine0
- Interactor
- Rhynchosporium communeRhynchosporium graminicolae0pathogen
- Outcome
- resistance to infectione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants from parents treated with both ASM or saccharin exhibited significantly enhanced resistance to infection by Rhynchosporium commune, despite not being treated with elicitor themselves”
e1“monocot plant barley”
The same questions in other papers
saccharin · growth · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- no effect
acibenzolar-S-methyl · Rhynchosporium graminicola · Hordeum vulgare (barley)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.