Abstract
Ameliorative impact of salicylic acid (SA) on Vigna unguiculata L. (cowpea) cultivar IT93k-452-1 during water deficit stress was investigated. Plants were subjected to water deficit stress (WD) for 7 days at either the vegetative stage (DVS) or the reproductive stage (DRS) and the leaf water potentials (ψw) of 1.9 MPa and -2.01 MPa were obtained, respectively. Stress caused reductions in almost all parameters studied. 3 and 5 mM SA foliar treatment caused increases of 27% in leaf ψw, 94% in chlorophyll content, 75% in plant biomass, 7% in nitrate reductase activity and 38% in proline content in DVS plants while the impact was much lower in DRS plants. Stress stimulated almost 3-fold increase in antioxidant vitamin B12 in DVS plants and 40% increase in vitamin C in DRS plants and SA (3 mM) further increased the latter by 14%. Overall, SA had a protective influence on the water potential and growth of stressed plants accompanied by an increase in production of osmolyte proline and antioxidant vitamin C.
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Claims 11
Claim · model-written summary
Water deficit produced leaf water potentials of 1.9 MPa in vegetative plants and -2.01 MPa in reproductive plants.
- Taxon
- Vigna unguiculata L.
Vigna unguiculatat0 - Outcome
- leaf water potentials (ψw)e0
- Value
- 1.9 MPa and -2.01 MPae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf water potentials (ψw) of 1.9 MPa and -2.01 MPa were obtained, respectively”
t0“Vigna unguiculata L.”
Claim · model-written summary
Stress reduced almost all studied parameters.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- Stresse0
- Outcome
- almost all parameters studiede0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stress caused reductions in almost all parameters studied.”
t0“Vigna unguiculata L.”
Claim · model-written summary
Salicylic acid increased vegetative-stage leaf water potential by 27%.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- 3 and 5 mM SA foliar treatmente0
- Outcome
- leaf ψwe0
- Direction
- increasese0
- Value
- 27%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3 and 5 mM SA foliar treatment caused increases of 27% in leaf ψw”
t0“Vigna unguiculata L.”
Claim · model-written summary
Salicylic acid increased vegetative-stage chlorophyll content by 94%.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- 3 and 5 mM SA foliar treatmente0
- Outcome
- chlorophyll contente0
- Direction
- increasese0
- Value
- 94%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3 and 5 mM SA foliar treatment caused increases of 27% in leaf ψw, 94% in chlorophyll content”
t0“Vigna unguiculata L.”
Claim · model-written summary
Salicylic acid increased vegetative-stage plant biomass by 75%.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- 3 and 5 mM SA foliar treatmente0
- Outcome
- plant biomasse0
- Direction
- increasese0
- Value
- 75%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3 and 5 mM SA foliar treatment caused increases of 27% in leaf ψw, 94% in chlorophyll content, 75% in plant biomass”
t0“Vigna unguiculata L.”
Claim · model-written summary
Salicylic acid increased vegetative-stage nitrate reductase activity by 7%.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- 3 and 5 mM SA foliar treatmente0
- Outcome
- nitrate reductase activitye0
- Direction
- increasese0
- Value
- 7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3 and 5 mM SA foliar treatment caused increases of 27% in leaf ψw, 94% in chlorophyll content, 75% in plant biomass, 7% in nitrate reductase activity”
t0“Vigna unguiculata L.”
Claim · model-written summary
Salicylic acid increased vegetative-stage proline content by 38%.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- 3 and 5 mM SA foliar treatmente0
- Outcome
- proline contente0
- Direction
- increasese0
- Value
- 38%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3 and 5 mM SA foliar treatment caused increases of 27% in leaf ψw, 94% in chlorophyll content, 75% in plant biomass, 7% in nitrate reductase activity and 38% in proline content in DVS plants”
t0“Vigna unguiculata L.”
Claim · model-written summary
The salicylic acid impact was much lower at the reproductive stage.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Outcome
- impact was much lower in DRS plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while the impact was much lower in DRS plants”
t0“Vigna unguiculata L.”
Claim · model-written summary
Stress stimulated an almost 3-fold vitamin B12 increase in vegetative plants.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- Stresse0
- Outcome
- antioxidant vitamin B12e0
- Direction
- increasee0
- Value
- almost 3-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stress stimulated almost 3-fold increase in antioxidant vitamin B12 in DVS plants”
t0“Vigna unguiculata L.”
Claim · model-written summary
Stress increased vitamin C by 40% in reproductive plants.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- Stresse0
- Outcome
- vitamin Ce0
- Direction
- increasee0
- Value
- 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stress stimulated almost 3-fold increase in antioxidant vitamin B12 in DVS plants and 40% increase in vitamin C in DRS plants”
t0“Vigna unguiculata L.”
Claim · model-written summary
Salicylic acid at 3 mM further increased reproductive-stage vitamin C by 14%.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- SA (3 mM)e0
- Outcome
- vitamin Ce0
- Direction
- increasede0
- Value
- 14%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stress stimulated almost 3-fold increase in antioxidant vitamin B12 in DVS plants and 40% increase in vitamin C in DRS plants and SA (3 mM) further increased the latter by 14%”
t0“Vigna unguiculata L.”
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See all 59 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.