Abstract
The goal of the present study was to obtain new insights into the mechanisms underlying drought stress adaptations in barley plants. For this purpose we evaluated changes in endogenous abscisic acid (ABA) and its glucose ester conjugate (ABAGE), as well as changes in proline content, water relations and growth parameters of five barley genotypes with different drought resistance characteristics. Different responses among the five genotypes studied (Ardahoui, Pakistan, Rihane, Manel ad Roho) led to changes in their pattern of growth and development under drought conditions. Water stress induced a reduction in relative water content, as well as an increase in proline content and endogenous ABA concentrations in all tested genotypes. The lack of water led to a 2-fold increase in proline content for var. Rihane and to a 5-fold increase in endogenous ABA for cv. Ardhaoui. Also, increases in endogenous ABAGE in all genotypes except for cv. Ardhaoui were observed. Our results show that changes in ABA and ABAGE correlated with variations in proline content and growth parameters of these genotypes which present different mechanisms to cope with water stress. We also suggest that new regulatory mechanisms implying ABA mobilization can be of great importance in adaptation of barley to drought.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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
The five barley genotypes differed in growth and developmental response under drought.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Material
- Ardahoui, Pakistan, Rihane, Manel ad Rohoe0
- Treatment
- drought conditionse0
- Outcome
- pattern of growth and developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Different responses among the five genotypes studied (Ardahoui, Pakistan, Rihane, Manel ad Roho) led to changes in their pattern of growth and development under drought conditions.”
t0“barley”
Claim · model-written summary
Water stress caused reduction in relative water content in all tested genotypes.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Water stresse0
- Outcome
- relative water contente0
- Direction
- reductione0
- Qualifier
- all tested genotypese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress induced a reduction in relative water content, as well as an increase in proline content and endogenous ABA concentrations in all tested genotypes.”
t0“barley”
Claim · model-written summary
Water stress caused increase in proline content in all tested genotypes.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Water stresse0
- Outcome
- proline contente0
- Direction
- increasee0
- Qualifier
- all tested genotypese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress induced a reduction in relative water content, as well as an increase in proline content and endogenous ABA concentrations in all tested genotypes.”
t0“barley”
Claim · model-written summary
Water stress caused increase in endogenous ABA concentrations in all tested genotypes.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Water stresse0
- Outcome
- endogenous ABA concentrationse0
- Direction
- increasee0
- Qualifier
- all tested genotypese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress induced a reduction in relative water content, as well as an increase in proline content and endogenous ABA concentrations in all tested genotypes.”
t0“barley”
Claim · model-written summary
Water shortage doubled proline content in Rihane.
- Taxon
- barleyHordeum vulgaret0
- Material
- Rihanee0
- Treatment
- lack of watere0
- Outcome
- proline contente0
- Direction
- increasee0
- Value
- 2-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lack of water led to a 2-fold increase in proline content for var. Rihane and to a 5-fold increase in endogenous ABA for cv. Ardhaoui.”
t0“barley”
Claim · model-written summary
Water shortage increased endogenous ABA fivefold in Ardhaoui.
- Taxon
- barleyHordeum vulgaret0
- Material
- Ardhaouie0
- Treatment
- lack of watere0
- Outcome
- endogenous ABAe0
- Direction
- increasee0
- Value
- 5-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lack of water led to a 2-fold increase in proline content for var. Rihane and to a 5-fold increase in endogenous ABA for cv. Ardhaoui.”
t0“barley”
Claim · model-written summary
Endogenous ABAGE increased in all genotypes except Ardhaoui.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- endogenous ABAGEe0
- Direction
- increasese0
- Qualifier
- all genotypes except for cv. Ardhaouie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Also, increases in endogenous ABAGE in all genotypes except for cv. Ardhaoui were observed.”
t0“barley”
Claim · model-written summary
Changes in ABA and ABAGE correlated with proline content variation.
- Taxon
- barleyHordeum vulgaret0
- Compound
- ABA and ABAGEe0
- Outcome
- proline contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results show that changes in ABA and ABAGE correlated with variations in proline content and growth parameters of these genotypes which present different mechanisms to cope with water stress.”
t0“barley”
Claim · model-written summary
Changes in ABA and ABAGE correlated with growth parameter variation.
- Taxon
- barleyHordeum vulgaret0
- Compound
- ABA and ABAGEe0
- Outcome
- growth parameterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results show that changes in ABA and ABAGE correlated with variations in proline content and growth parameters of these genotypes which present different mechanisms to cope with water stress.”
t0“barley”
Claim · model-written summary
The authors suggest ABA mobilization is important for barley drought adaptation.
- Taxon
- barleyHordeum vulgaree0
- Compound
- ABAe0
- Outcome
- adaptation of barley to droughte0
- Qualifier
- ABA mobilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We also suggest that new regulatory mechanisms implying ABA mobilization can be of great importance in adaptation of barley to drought.”
The same questions in other papers
drought · physiology: osmolytes · Hordeum vulgare (barley)Results differ
7 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
8 papers more in this group
See all 12 papers →drought · physiology: water · Hordeum vulgare (barley)Results differ
27 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
33 papers more in this group
See all 37 papers →drought · molecular: metabolites · Hordeum vulgare (barley)Positive and negative results
11 papers in the same direction as this paper · 19 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- no effect
28 papers more in this group
See all 32 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.