Abstract
The effects of drought stress induced by withholding water in soil pot were in- vestigated on processes related to CO 2 fixation of wheat, Ae. tauschii, Ae. speltoides and Ae. bicornis genotypes. A decrease in relative water content (RWC) of leaves from 95% to 85% re- sulted in intense stomatal closure and significant decrease in the net CO2 fixation in wheat and Ae. bicornis genotypes, while in Ae. tauschii and Ae. speltoides genotypes, g s and A parameters remained significantly high between 90% and 70% RWC. Despite the intense stomatal closure, the mesophyll limitation (L m ) to A, calculated from the A/C i curves, dominated in wheat and Ae. bicornis genotypes, while the stomatal limitation (L s ) were typical of Ae. tauschii and Ae. speltoides genotypes during drought stress. These properties of Ae. tauschii and Ae. speltoides genotypes could be suitable for improving drought tolerance of wheat through intergeneric crossing.
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Claims 12
Claim · model-written summary
A drop in leaf RWC from 95% to 85% caused intense stomatal closure in wheat.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- decrease in relative water content (RWC) of leaves from 95% to 85%e0
- Outcome
- stomatal closuree0
- Direction
- intensee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A decrease in relative water content (RWC) of leaves from 95% to 85% re- sulted in intense stomatal closure and significant decrease in the net CO2 fixation in wheat and Ae. bicornis genotypes”
Claim · model-written summary
The same RWC drop significantly lowered net CO2 fixation in wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- decrease in relative water content (RWC) of leaves from 95% to 85%e0
- Outcome
- net CO2 fixatione0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A decrease in relative water content (RWC) of leaves from 95% to 85% re- sulted in intense stomatal closure and significant decrease in the net CO2 fixation in wheat and Ae. bicornis genotypes”
Claim · model-written summary
The RWC drop caused intense stomatal closure in Ae. bicornis.
- Taxon
- Ae. bicornise0
- Treatment
- decrease in relative water content (RWC) of leaves from 95% to 85%e0
- Outcome
- stomatal closuree0
- Direction
- intensee0
Not reportedComparator
Verbatim
e0“A decrease in relative water content (RWC) of leaves from 95% to 85% re- sulted in intense stomatal closure and significant decrease in the net CO2 fixation in wheat and Ae. bicornis genotypes”
Claim · model-written summary
The RWC drop significantly lowered net CO2 fixation in Ae. bicornis.
- Taxon
- Ae. bicornise0
- Treatment
- decrease in relative water content (RWC) of leaves from 95% to 85%e0
- Outcome
- net CO2 fixatione0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“A decrease in relative water content (RWC) of leaves from 95% to 85% re- sulted in intense stomatal closure and significant decrease in the net CO2 fixation in wheat and Ae. bicornis genotypes”
Claim · model-written summary
Stomatal conductance and CO2 fixation remained significantly high in Ae. tauschii at 90% to 70% RWC.
Verbatim
e0“in Ae. tauschii and Ae. speltoides genotypes, g s and A parameters remained significantly high between 90% and 70% RWC”
Claim · model-written summary
Stomatal conductance and CO2 fixation remained significantly high in Ae. speltoides at 90% to 70% RWC.
Verbatim
e0“in Ae. tauschii and Ae. speltoides genotypes, g s and A parameters remained significantly high between 90% and 70% RWC”
Claim · model-written summary
Mesophyll limitation dominated CO2 fixation in drought-stressed wheat.
- Taxon
- wheatTriticum aestivume0
- Outcome
- mesophyll limitation (L m ) to Ae0
- Direction
- dominatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mesophyll limitation (L m ) to A, calculated from the A/C i curves, dominated in wheat and Ae. bicornis genotypes”
Claim · model-written summary
Mesophyll limitation dominated CO2 fixation in drought-stressed Ae. bicornis.
Verbatim
e0“the mesophyll limitation (L m ) to A, calculated from the A/C i curves, dominated in wheat and Ae. bicornis genotypes”
Claim · model-written summary
Stomatal limitation characterized Ae. tauschii during drought.
Verbatim
e0“the stomatal limitation (L s ) were typical of Ae. tauschii and Ae. speltoides genotypes during drought stress”
Claim · model-written summary
Stomatal limitation characterized Ae. speltoides during drought.
Verbatim
e0“the stomatal limitation (L s ) were typical of Ae. tauschii and Ae. speltoides genotypes during drought stress”
Claim · model-written summary
Ae. tauschii was proposed as a source for improving wheat drought tolerance by crossing.
Verbatim
e0“These properties of Ae. tauschii and Ae. speltoides genotypes could be suitable for improving drought tolerance of wheat through intergeneric crossing”
Claim · model-written summary
Ae. speltoides was proposed as a source for improving wheat drought tolerance by crossing.
Verbatim
e0“These properties of Ae. tauschii and Ae. speltoides genotypes could be suitable for improving drought tolerance of wheat through intergeneric crossing”