Abstract
Drought priming is a promising strategy for enhancing plant tolerance to low temperature stress. However, the underlying stress memory mechanisms linking priming to subsequent stress responses remain understood. Here, we integrated physiological, transcriptomic , and metabolomic analyses to identify key stress memory genes or metabolites associated with priming-induced low temperature tolerance in wheat. Our results demonstrated that drought priming significantly improved cold tolerance by enhancing leaf photosynthesis , mitigating oxidative damage, and promoting osmolyte accumulation. These physiological advantages were tightly linked to transcriptional reprogramming of carbohydrate metabolism , antioxidant defense, and hormone signaling pathways , suggesting that drought priming establishes a long-term molecular and metabolic memory that enhances stress tolerance . During stress memory maintenance, primed plants sustained elevated expression of genes related to reactive oxygen species homeostasis , ethylene and brassinosteroid biosynthesis , and indole-3-acetic acid (IAA) catabolism, along with increased accumulation of abscisic acid glucosyl ester (ABA-GE). Additionally, primed plants exhibited higher expression of genes associated with carbon, nitrogen, and energy metabolism while downregulating secondary metabolite biosynthesis genes, optimizing their metabolic state for future stress adaptation. Upon stress retriggering, primed plants rapidly activated ABA, IAA, and Ca 2+ signaling pathways, upregulated antioxidant enzyme and sugar biosynthetic genes, and accumulated polyunsaturated fatty acids, lipids , and specific secondary metabolites, facilitating a swift and effective response to low temperature stress. These findings provide critical insights into the molecular and metabolic basis of stress memory in wheat, offering valuable genetic and biochemical targets for breeding climate-resilient crops and developing strategies to mitigate the impact of environmental stresses.
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 12
Claim · model-written summary
Drought priming improved cold tolerance during low temperature stress.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- drought priminge0
- Outcome
- cold tolerancee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought priming significantly improved cold tolerance by enhancing leaf photosynthesis , mitigating oxidative damage, and promoting osmolyte accumulation”
t0“wheat”
Claim · model-written summary
Drought priming enhancing leaf photosynthesis during low temperature stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- drought priminge0
- Outcome
- leaf photosynthesise0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought priming significantly improved cold tolerance by enhancing leaf photosynthesis , mitigating oxidative damage, and promoting osmolyte accumulation”
t0“wheat”
Claim · model-written summary
Drought priming mitigating oxidative damage during low temperature stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- drought priminge0
- Outcome
- oxidative damagee0
- Direction
- mitigatinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought priming significantly improved cold tolerance by enhancing leaf photosynthesis , mitigating oxidative damage, and promoting osmolyte accumulation”
t0“wheat”
Claim · model-written summary
Drought priming promoting osmolyte accumulation during low temperature stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- drought priminge0
- Outcome
- osmolyte accumulatione0
- Direction
- promotinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought priming significantly improved cold tolerance by enhancing leaf photosynthesis , mitigating oxidative damage, and promoting osmolyte accumulation”
t0“wheat”
Claim · model-written summary
Physiological advantages were linked to transcriptional reprogramming of carbohydrate metabolism, antioxidant defense and hormone signaling.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- physiological advantagese0
- Qualifier
- transcriptional reprogramming of carbohydrate metabolism , antioxidant defense, and hormone signaling pathwayse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These physiological advantages were tightly linked to transcriptional reprogramming of carbohydrate metabolism , antioxidant defense, and hormone signaling pathways”
t0“wheat”
Claim · model-written summary
Primed plants sustained elevated expression of genes related to reactive oxygen species homeostasis, ethylene and brassinosteroid biosynthesis and IAA catabolism.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- expression of genes related to reactive oxygen species homeostasis , ethylene and brassinosteroid biosynthesis , and indole-3-acetic acid (IAA) catabolisme0
- Direction
- elevatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primed plants sustained elevated expression of genes related to reactive oxygen species homeostasis , ethylene and brassinosteroid biosynthesis , and indole-3-acetic acid (IAA) catabolism, along with increased accumulation of abscisic acid glucosyl ester (ABA-GE)”
t0“wheat”
Claim · model-written summary
Primed plants accumulated more ABA-GE during memory maintenance.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- accumulation of abscisic acid glucosyl ester (ABA-GE)e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primed plants sustained elevated expression of genes related to reactive oxygen species homeostasis , ethylene and brassinosteroid biosynthesis , and indole-3-acetic acid (IAA) catabolism, along with increased accumulation of abscisic acid glucosyl ester (ABA-GE)”
t0“wheat”
Claim · model-written summary
Primed plants showed higher expression of genes associated with carbon, nitrogen and energy metabolism.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- expression of genes associated with carbon, nitrogen, and energy metabolisme0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primed plants exhibited higher expression of genes associated with carbon, nitrogen, and energy metabolism while downregulating secondary metabolite biosynthesis genes”
t0“wheat”
Claim · model-written summary
Primed plants downregulated secondary metabolite biosynthesis genes.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- secondary metabolite biosynthesis genese0
- Direction
- downregulatinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primed plants exhibited higher expression of genes associated with carbon, nitrogen, and energy metabolism while downregulating secondary metabolite biosynthesis genes”
t0“wheat”
Claim · model-written summary
Upon stress retriggering, primed plants activated ABA, IAA, and Ca 2+ signaling pathways.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- ABA, IAA, and Ca 2+ signaling pathwayse0
- Direction
- activatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primed plants rapidly activated ABA, IAA, and Ca 2+ signaling pathways, upregulated antioxidant enzyme and sugar biosynthetic genes, and accumulated polyunsaturated fatty acids, lipids , and specific secondary metabolites”
t0“wheat”
Claim · model-written summary
Upon stress retriggering, primed plants upregulated antioxidant enzyme and sugar biosynthetic genes.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- antioxidant enzyme and sugar biosynthetic genese0
- Direction
- upregulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primed plants rapidly activated ABA, IAA, and Ca 2+ signaling pathways, upregulated antioxidant enzyme and sugar biosynthetic genes, and accumulated polyunsaturated fatty acids, lipids , and specific secondary metabolites”
t0“wheat”
Claim · model-written summary
Upon stress retriggering, primed plants accumulated polyunsaturated fatty acids, lipids , and specific secondary metabolites.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- polyunsaturated fatty acids, lipids , and specific secondary metabolitese0
- Direction
- accumulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primed plants rapidly activated ABA, IAA, and Ca 2+ signaling pathways, upregulated antioxidant enzyme and sugar biosynthetic genes, and accumulated polyunsaturated fatty acids, lipids , and specific secondary metabolites”
t0“wheat”
The same questions in other papers
seed treatment · tolerance: abiotic · Triticum aestivum (wheat)Positive and negative results
10 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
8 papers more in this group
See all 12 papers →drought · tolerance: abiotic · Triticum aestivum (wheat)Positive and negative results
11 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- positive
10 papers more in this group
See all 14 papers →seed treatment · physiology: osmolytes · Triticum aestivum (wheat)Positive and negative results
25 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
23 papers more in this group
See all 27 papers →seed treatment · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results
45 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- negative
44 papers more in this group
See all 48 papers →seed treatment · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results
50 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
48 papers more in this group
See all 52 papers →drought · physiology: osmolytes · Triticum aestivum (wheat)Positive and negative results
47 papers in the same direction as this paper · 27 in the opposite direction
- negative
- negative
- negative
71 papers more in this group
See all 75 papers →drought · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results
17 papers in the same direction as this paper · 110 in the opposite direction
- positive
- negative
- negative
124 papers more in this group
See all 128 papers →drought · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results
40 papers in the same direction as this paper · 204 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- negative
242 papers more in this group
See all 246 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.