Abstract
Wound-induced suberin deposition involves the temporal and spatial coordination of phenolic and fatty acid metabolism. Phenolic metabolism leads to both soluble metabolites that accumulate as defense compounds as well as hydroxycinnamoyl derivatives that form the basis of the poly(phenolic) domain found in suberized tissue. Fatty acid metabolism involves the biosynthesis of very-long-chain fatty acids, 1-alkanols, ω-hydroxy fatty acids and α,ω-dioic acids that form a poly(aliphatic) domain, commonly referred to as suberin. Using the abscisic acid (ABA) biosynthesis inhibitor fluridone (FD), we reduced wound-induced de novo biosynthesis of ABA in potato tubers, and measured the impact on the expression of genes involved in phenolic metabolism (StPAL1, StC4H, StCCR, StTHT), aliphatic metabolism (StCYP86A33, StCYP86B12, StFAR3, StKCS6), metabolism linking phenolics and aliphatics (StFHT) or acyl chains and glycerol (StGPAT5, StGPAT6), and in the delivery of aliphatic monomers to the site of suberization (StABCG1). In FD-treated tissue, both aliphatic gene expression and accumulation of aliphatic suberin monomers were delayed. Exogenous ABA restored normal aliphatic suberin deposition in FD-treated tissue, and enhanced aliphatic gene expression and poly(aliphatic) domain deposition when applied alone. By contrast, phenolic metabolism genes were not affected by FD treatment, while FD + ABA and ABA treatments slightly enhanced the accumulation of polar metabolites. These data support a role for ABA in the differential induction of phenolic and aliphatic metabolism during wound-induced suberization in potato.
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Claims 8
Claim · model-written summary
FD delayed aliphatic gene expression.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- FD-treatede0
- Outcome
- aliphatic gene expressione0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In FD-treated tissue, both aliphatic gene expression and accumulation of aliphatic suberin monomers were delayed.”
t0“potato (Solanum tuberosum L.) tubers”
Claim · model-written summary
FD delayed aliphatic suberin monomer accumulation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- FD-treatede0
- Outcome
- accumulation of aliphatic suberin monomerse0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In FD-treated tissue, both aliphatic gene expression and accumulation of aliphatic suberin monomers were delayed.”
t0“potato (Solanum tuberosum L.) tubers”
Claim · model-written summary
Exogenous ABA restored normal aliphatic suberin deposition in FD treated tissue.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Exogenous ABAe0
- Outcome
- aliphatic suberin depositione0
- Direction
- restorede0
- Comparator
- FD-treated tissuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous ABA restored normal aliphatic suberin deposition in FD-treated tissue”
t0“potato (Solanum tuberosum L.) tubers”
Claim · model-written summary
ABA alone enhanced aliphatic gene expression.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- applied alonee0
- Outcome
- aliphatic gene expressione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced aliphatic gene expression and poly(aliphatic) domain deposition when applied alone”
t0“potato (Solanum tuberosum L.) tubers”
Claim · model-written summary
ABA alone enhanced poly(aliphatic) domain deposition.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- applied alonee0
- Outcome
- poly(aliphatic) domain depositione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced aliphatic gene expression and poly(aliphatic) domain deposition when applied alone”
t0“potato (Solanum tuberosum L.) tubers”
Claim · model-written summary
FD did not affect phenolic metabolism genes.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- FD treatmente0
- Outcome
- phenolic metabolism genese0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phenolic metabolism genes were not affected by FD treatment”
t0“potato (Solanum tuberosum L.) tubers”
Claim · model-written summary
FD plus ABA slightly enhanced polar metabolite accumulation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- FD + ABAe0
- Outcome
- accumulation of polar metabolitese0
- Direction
- enhancede0
- Qualifier
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FD + ABA and ABA treatments slightly enhanced the accumulation of polar metabolites”
t0“potato (Solanum tuberosum L.) tubers”
Claim · model-written summary
ABA slightly enhanced polar metabolite accumulation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- ABA treatmentse0
- Outcome
- accumulation of polar metabolitese0
- Direction
- enhancede0
- Qualifier
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FD + ABA and ABA treatments slightly enhanced the accumulation of polar metabolites”
t0“potato (Solanum tuberosum L.) tubers”
The same questions in other papers
Fluridone · molecular: metabolites · Solanum tuberosum (potato)Positive and negative results
2 in the opposite direction
- negative
- negative
(+)-abscisic acid · molecular: metabolites · Solanum tuberosum (potato)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- 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.