Abstract
Wheat is one of the most important crops in the world. Its yield is greatly influenced by global climate change and scarcity of water in the arid and semi-arid areas of the world. So, exploration of gene resources is of importance to wheat breeding in order to improve the crop ability of coping with abiotic stress environment. Wild relatives of wheat are rich repositories of beneficial genes that confer tolerance or resistance not only to drought but also to other environmental stresses. In the present study, the changes in leaf relative water content (RWC), free proline content, and malondialdehyde (MDA) accumulation of five wild wheat species including T. boeticum (YS-1L), T. dicoccum var. dicoccoides (YS-2L), T. araraticum (ALLT), and two cultivated varieties of T. turgidum ssp. durum (MXLK and 87341), with two well-known common wheat cultivars (SH6 and ZY1) possessing strong drought resistance and sensitiveness, respectively, as references were investigated during 3-day water stress and 2-day recovery, in order to assess the drought tolerance of these wild wheat species. The laboratory experiment was conducted under two water regimes (stress and non-stress treatments). Stress was induced to hydroponically grown two weeks old wheat seedlings with 20% PEG 6000. Stress treatment caused a much smaller decrease in the leaf RWC and rise in MDA content in YS-1L compared to the other wheat species. From the data it was obvious that YS-1L was the most drought tolerant among studied species having significantly higher proline and RWC while lower MDA content under water stress conditions. The order of water stress tolerance of these species according to the three parameters is: YS-1L > YS-2L > SH6 > 87341 > ZY1 > MXLK > ALLT. We speculate that the observed drought stress tolerance at a cellular level was associated with the ability to accumulate proline and high water level conservation.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 8
Claim · model-written summary
Under water stress, YS-1L had a smaller decrease in leaf relative water content than other wheat species.
- Taxon
- wheat species
Triticum aestivume0 - Material
- YS-1Le0
- Treatment
- Stress treatmente0
- Outcome
- leaf RWCe0
- Direction
- much smaller decreasee0
- Comparator
- other wheat speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stress treatment caused a much smaller decrease in the leaf RWC and rise in MDA content in YS-1L compared to the other wheat species.”
Claim · model-written summary
Under water stress, YS-1L had a smaller rise in MDA content than other wheat species.
- Taxon
- wheat speciesTriticum aestivume0
- Material
- YS-1Le0
- Treatment
- Stress treatmente0
- Outcome
- MDA contente0
- Direction
- risee0
- Qualifier
- much smallere0
- Comparator
- other wheat speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stress treatment caused a much smaller decrease in the leaf RWC and rise in MDA content in YS-1L compared to the other wheat species.”
Claim · model-written summary
YS-1L had significantly higher proline under water stress.
Verbatim
e0“YS-1L was the most drought tolerant among studied species having significantly higher proline and RWC while lower MDA content under water stress conditions.”
t0“Triticum L. species”
Claim · model-written summary
YS-1L had significantly higher relative water content under water stress.
Verbatim
e0“YS-1L was the most drought tolerant among studied species having significantly higher proline and RWC while lower MDA content under water stress conditions.”
t0“Triticum L. species”
Claim · model-written summary
YS-1L had lower MDA content under water stress.
Verbatim
e0“YS-1L was the most drought tolerant among studied species having significantly higher proline and RWC while lower MDA content under water stress conditions.”
t0“Triticum L. species”
Claim · model-written summary
YS-1L was the most drought tolerant of the studied species.
Verbatim
e0“YS-1L was the most drought tolerant among studied species”
t0“Triticum L. species”
Claim · model-written summary
The water-stress tolerance ranking was YS-1L > YS-2L > SH6 > 87341 > ZY1 > MXLK > ALLT.
Verbatim
e0“The order of water stress tolerance of these species according to the three parameters is: YS-1L > YS-2L > SH6 > 87341 > ZY1 > MXLK > ALLT.”
t0“Triticum L. species”
Claim · model-written summary
The authors speculated that cellular drought tolerance was associated with proline accumulation and water conservation.
- Taxon
- Triticum L. speciest0
- Compound
- prolinee0
- Outcome
- drought stress tolerancee0
- Qualifier
- high water level conservatione0
Not reportedDirection
Verbatim
e0“We speculate that the observed drought stress tolerance at a cellular level was associated with the ability to accumulate proline and high water level conservation.”
t0“Triticum L. species”