Abstract
The influence of seed priming with varying levels (50 and 100 mg L−1) of alpha-tocopherol (Toc) was investigated in carrot plants under water-deficit conditions. For this purpose, two cultivars of carrot, DC4 and DC90, were selected and subjected to well-watered (100% field capacity (FC)) and water-deficit stress (50% FC). After 21 days of water-deficit conditions, a significant suppression was observed in shoot and root fresh and dry weights, their lengths, chlorophyll a, b and total contents, and total soluble proteins (TSP). However, an up-regulatory effect of water stress was observed on the concentrations of glycinebetaine (GB), hydrogen peroxide (H2O2), malondialdehyde (MDA), ascorbic acid (AsA), total phenolics as well as the activities of catalase (CAT) and peroxidase (POD) enzymes. Exogenous application of alpha-tocopherol was effective in reducing the accumulation of H2O2 and MDA contents and improving all growth attributes, contents of chlorophyll, proline, GB, AsA, total phenolics, TSP, and the activities of CAT and POD enzymes. Of both carrot cultivars, cv. DC4 had better performance in terms of growth attributes, whereas the response of the two cultivars was similar in all other attributes varying water regimes. Overall, it is suggested that seed priming with 100 mg L−1 Toc was effective in improving plant growth attributes, osmoprotectants and the oxidative defense system of carrot plants under water-deficit conditions.
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Claims 14
Claim · model-written summary
After 21 days of water deficit, carrot shoot and root fresh and dry weights and lengths were significantly suppressed compared with well-watered plants.
- Taxon
- Carrot
Daucus carotat0 - Treatment
- water-deficit conditionse1
- Outcome
- shoot and root fresh and dry weights, their lengthse1
- Direction
- suppressione1
- Comparator
- well-watered (100% field capacity (FC))e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“After 21 days of water-deficit conditions, a significant suppression was observed in shoot and root fresh and dry weights, their lengths, chlorophyll a, b and total contents, and total soluble proteins (TSP)”
e2“well-watered (100% field capacity (FC))”
Claim · model-written summary
After 21 days of water deficit, carrot chlorophyll a, b and total contents were significantly suppressed compared with well-watered plants.
- Taxon
- CarrotDaucus carotat0
- Treatment
- water-deficit conditionse1
- Outcome
- chlorophyll a, b and total contentse1
- Direction
- suppressione1
- Comparator
- well-watered (100% field capacity (FC))e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“After 21 days of water-deficit conditions, a significant suppression was observed in shoot and root fresh and dry weights, their lengths, chlorophyll a, b and total contents, and total soluble proteins (TSP)”
e2“well-watered (100% field capacity (FC))”
Claim · model-written summary
After 21 days of water deficit, carrot total soluble proteins were significantly suppressed compared with well-watered plants.
- Taxon
- CarrotDaucus carotat0
- Treatment
- water-deficit conditionse1
- Outcome
- total soluble proteins (TSP)e1
- Direction
- suppressione1
- Comparator
- well-watered (100% field capacity (FC))e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“After 21 days of water-deficit conditions, a significant suppression was observed in shoot and root fresh and dry weights, their lengths, chlorophyll a, b and total contents, and total soluble proteins (TSP)”
e2“well-watered (100% field capacity (FC))”
Claim · model-written summary
Water stress increased the concentrations of glycinebetaine, hydrogen peroxide and malondialdehyde in carrot.
- Taxon
- CarrotDaucus carotat0
- Treatment
- water stresse1
- Outcome
- concentrations of glycinebetaine (GB), hydrogen peroxide (H2O2), malondialdehyde (MDA)e1
- Direction
- up-regulatorye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“an up-regulatory effect of water stress was observed on the concentrations of glycinebetaine (GB), hydrogen peroxide (H2O2), malondialdehyde (MDA), ascorbic acid (AsA), total phenolics as well as the activities of catalase (CAT) and peroxidase (POD) enzymes”
Claim · model-written summary
Water stress increased the concentrations of ascorbic acid and total phenolics in carrot.
- Taxon
- CarrotDaucus carotat0
- Treatment
- water stresse1
- Outcome
- ascorbic acid (AsA), total phenolicse1
- Direction
- up-regulatorye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“an up-regulatory effect of water stress was observed on the concentrations of glycinebetaine (GB), hydrogen peroxide (H2O2), malondialdehyde (MDA), ascorbic acid (AsA), total phenolics as well as the activities of catalase (CAT) and peroxidase (POD) enzymes”
Claim · model-written summary
Water stress increased the activities of catalase and peroxidase in carrot.
- Taxon
- CarrotDaucus carotat0
- Treatment
- water stresse1
- Outcome
- activities of catalase (CAT) and peroxidase (POD) enzymese1
- Direction
- up-regulatorye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“an up-regulatory effect of water stress was observed on the concentrations of glycinebetaine (GB), hydrogen peroxide (H2O2), malondialdehyde (MDA), ascorbic acid (AsA), total phenolics as well as the activities of catalase (CAT) and peroxidase (POD) enzymes”
Claim · model-written summary
Exogenous alpha-tocopherol reduced accumulation of H2O2 and MDA in carrot under water deficit.
- Taxon
- CarrotDaucus carotat0
- Treatment
- Exogenous application of alpha-tocopherole1
- Outcome
- accumulation of H2O2 and MDA contentse2
- Direction
- reducinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“Exogenous application of alpha-tocopherol”
e2“reducing the accumulation of H2O2 and MDA contents”
Claim · model-written summary
Exogenous alpha-tocopherol improved all growth attributes of carrot under water deficit.
- Taxon
- CarrotDaucus carotat0
- Treatment
- Exogenous application of alpha-tocopherole1
- Outcome
- all growth attributese2
- Direction
- improvinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“Exogenous application of alpha-tocopherol”
e2“improving all growth attributes, contents of chlorophyll, proline, GB, AsA, total phenolics, TSP, and the activities of CAT and POD enzymes”
Claim · model-written summary
Exogenous alpha-tocopherol improved contents of chlorophyll, proline and glycinebetaine in carrot under water deficit.
- Taxon
- CarrotDaucus carotat0
- Treatment
- Exogenous application of alpha-tocopherole1
- Outcome
- contents of chlorophyll, proline, GBe2
- Direction
- improvinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“Exogenous application of alpha-tocopherol”
e2“improving all growth attributes, contents of chlorophyll, proline, GB, AsA, total phenolics, TSP, and the activities of CAT and POD enzymes”
Claim · model-written summary
Exogenous alpha-tocopherol improved contents of ascorbic acid, total phenolics and total soluble proteins in carrot under water deficit.
- Taxon
- CarrotDaucus carotat0
- Treatment
- Exogenous application of alpha-tocopherole1
- Outcome
- AsA, total phenolics, TSPe2
- Direction
- improvinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“Exogenous application of alpha-tocopherol”
e2“improving all growth attributes, contents of chlorophyll, proline, GB, AsA, total phenolics, TSP, and the activities of CAT and POD enzymes”
Claim · model-written summary
Exogenous alpha-tocopherol improved catalase and peroxidase activities in carrot under water deficit.
- Taxon
- CarrotDaucus carotat0
- Treatment
- Exogenous application of alpha-tocopherole1
- Outcome
- activities of CAT and POD enzymese2
- Direction
- improvinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“Exogenous application of alpha-tocopherol”
e2“improving all growth attributes, contents of chlorophyll, proline, GB, AsA, total phenolics, TSP, and the activities of CAT and POD enzymes”
Claim · model-written summary
Carrot cultivar DC4 performed better than DC90 in growth attributes.
- Taxon
- CarrotDaucus carotat0
- Material
- cv. DC4e1
- Outcome
- growth attributese1
- Direction
- better performancee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“Of both carrot cultivars, cv. DC4 had better performance in terms of growth attributes”
Claim · model-written summary
The responses of the two carrot cultivars were similar in all other attributes across water regimes.
- Taxon
- CarrotDaucus carotat0
- Material
- two cultivarse1
- Outcome
- all other attributese1
- Direction
- similare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“the response of the two cultivars was similar in all other attributes varying water regimes”
Claim · model-written summary
The authors suggest that seed priming with 100 mg L-1 alpha-tocopherol is effective in improving growth attributes, osmoprotectants and the oxidative defense system of carrot under water deficit.
- Taxon
- CarrotDaucus carotat0
- Treatment
- seed priming with 100 mg L−1 Toce1
- Outcome
- plant growth attributes, osmoprotectants and the oxidative defense systeme1
- Direction
- improvinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Carrot (Daucus carota L.)”
e1“seed priming with 100 mg L−1 Toc was effective in improving plant growth attributes, osmoprotectants and the oxidative defense system of carrot plants under water-deficit conditions”
The same questions in other papers
drought · physiology: pigments · Daucus carota (carrot)Positive and negative results
1 in the opposite direction
- positive
drought · physiology: osmolytes · Daucus carota (carrot)Positive and negative results
1 in the opposite direction
- positive
drought · growth · Daucus carota (carrot)Positive and negative results
4 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →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.