Abstract
ABSTRACT Wheat is a staple crop crucial for global food security, but its production is significantly affected by salt stress. Exploring natural genetic diversity in wheat can identify ways to improve salt tolerance. We subjected five wheat genotypes: Mocho de Espiga Branca (enhanced tissue tolerance), Fretes (tissue tolerance), Wyalkatchem and Westonia (salt exclusion) and Westonia Nax1 (enhanced salt exclusion), to 150 mM NaCl for 8 days. We measured changes in biomass, photosynthesis, chlorophyll content, Na + /K + ratios and protein abundance. Mocho maintained growth despite high tissue Na + , showing physiological tolerance supported by differential regulation of mitochondrial proteins, central carbon metabolism, the GABA shunt and compatible solutes. Mitochondrial complexome profiling revealed salt‐induced instability of 2‐oxoglutarate dehydrogenase complex (OGDC) and a hydroxyglutarate synthase orthologue (HglS). In vitro assays confirmed subtle but significant OGDC activity and stability differences in Mocho, which also retained higher TCA cycle enzyme levels in vivo. Whole‐plant treatment with the OGDC inhibitor succinyl phosphonate reproduced salt‐like reductions in chlorophyll and biomass, particularly in Mocho. These findings highlight distinct strategies of tissue tolerance and salt exclusion in wheat, emphasising OGDC's role in Mocho's salt tolerance and pointing to metabolic pathways that could improve tissue tolerance traits and support sustainable agriculture.
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Claims 9
Claim · model-written summary
Mocho maintained growth despite high tissue sodium.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- Mochoe0
- Outcome
- growthe0
- Qualifier
- high tissue Na +e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“Mocho maintained growth despite high tissue Na +”
Claim · model-written summary
Mocho showed differential regulation of mitochondrial proteins and central carbon metabolism.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- differential regulation of mitochondrial proteins, central carbon metabolism, the GABA shunt and compatible solutese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“showing physiological tolerance supported by differential regulation of mitochondrial proteins, central carbon metabolism, the GABA shunt and compatible solutes”
Claim · model-written summary
Salt destabilized the 2-oxoglutarate dehydrogenase complex.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- salte0
- Gene
- 2‐oxoglutarate dehydrogenase complex (OGDC)e0
- Outcome
- instability of 2‐oxoglutarate dehydrogenase complexe0
- Direction
- instabilitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“salt‐induced instability of 2‐oxoglutarate dehydrogenase complex (OGDC)”
Claim · model-written summary
Salt destabilized a hydroxyglutarate synthase orthologue.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- salte0
- Gene
- hydroxyglutarate synthase orthologue (HglS)e0
- Outcome
- hydroxyglutarate synthase orthologuee0
- Direction
- instabilitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“salt‐induced instability of 2‐oxoglutarate dehydrogenase complex (OGDC) and a hydroxyglutarate synthase orthologue (HglS)”
Claim · model-written summary
Mocho showed subtle but significant differences in OGDC activity and stability.
- Taxon
- WheatTriticum aestivumt0
- Material
- Mochoe0
- Gene
- OGDCe0
- Outcome
- OGDC activity and stability differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“In vitro assays confirmed subtle but significant OGDC activity and stability differences in Mocho”
Claim · model-written summary
Mocho retained higher TCA cycle enzyme levels in vivo.
- Taxon
- WheatTriticum aestivumt0
- Material
- Mochoe0
- Outcome
- TCA cycle enzyme levelse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“Mocho, which also retained higher TCA cycle enzyme levels in vivo”
Claim · model-written summary
Succinyl phosphonate reduced chlorophyll in whole wheat plants, particularly Mocho.
- Taxon
- WheatTriticum aestivumt0
- Material
- Mochoe0
- Treatment
- OGDC inhibitor succinyl phosphonatee0
- Outcome
- chlorophylle0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“Whole‐plant treatment with the OGDC inhibitor succinyl phosphonate reproduced salt‐like reductions in chlorophyll and biomass, particularly in Mocho”
Claim · model-written summary
Succinyl phosphonate reduced biomass in whole wheat plants, particularly Mocho.
- Taxon
- WheatTriticum aestivumt0
- Material
- Mochoe0
- Treatment
- OGDC inhibitor succinyl phosphonatee0
- Outcome
- biomasse0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“Whole‐plant treatment with the OGDC inhibitor succinyl phosphonate reproduced salt‐like reductions in chlorophyll and biomass, particularly in Mocho”
Claim · model-written summary
The authors infer a role for OGDC in Mocho salt tolerance.
- Taxon
- WheatTriticum aestivumt0
- Material
- Mochoe0
- Gene
- OGDCe0
- Outcome
- Mocho's salt tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Tissue Tolerance”
e0“emphasising OGDC's role in Mocho's salt tolerance”
The same questions in other papers
salinity · nutrient: content · Triticum aestivum (wheat)Positive and negative results
65 papers in the same direction as this paper · 19 in the opposite direction
- positive
- positive
- positive
81 papers more in this group
See all 85 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.