Abstract
Drought negatively affects the growth and yield of terrestrial crops. Seed priming, pre-exposing seed to a compound, could induce improved tolerance and adaptation to stress in germinated plants. To understand the effects and regulatory mechanism of seed priming with brassinosteroid (BR) on peanut plants, we treated seeds with five BR concentrations and examined dozens of physiological and biochemical features, and transcriptomic changes in leaves under well-watered and drought conditions. We found optimal 0.15 ppm BR priming could reduce inhibitions from drought and increase the yield of peanut, and priming effects are dependent on stage of plant development and duration of drought. BR priming induced fewer differentially expressed genes (DEGs) than no BR priming under well-watered condition. Drought with BR priming reduced the number of DEGs than drought only. These DEGs were enriched in varied gene ontologies and metabolism pathways. Downregulation of DEGs involved in both light perceiving and photosynthesis in leaves is consistent with low parameters of photosynthesis. Optimal BR priming partially rescued the levels of growth promoting auxin and gibberellin which were largely reduced by drought, and increased levels of defense associated abscisic acid and salicylic acid after long-term drought. BR priming induced many DEGs which function as kinase or transcription factor for signal cascade under drought. We proposed BR priming-induced regulatory responses will be memorized and recalled for fast adaptation in later drought stress. These results provide physiological and regulatory bases of effects of seed priming with BR, which can help to guide the framing improvement under drought stress.
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 13
Claim · model-written summary
Optimal 0.15 ppm BR priming reduced drought inhibition in peanut.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- 0.15 ppm BR priminge0
- Outcome
- inhibitions from droughte0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We found optimal 0.15 ppm BR priming could reduce inhibitions from drought and increase the yield of peanut”
Claim · model-written summary
Optimal 0.15 ppm BR priming increased peanut yield.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- 0.15 ppm BR priminge0
- Outcome
- yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We found optimal 0.15 ppm BR priming could reduce inhibitions from drought and increase the yield of peanut”
Claim · model-written summary
Priming effects depended on peanut development stage and drought duration.
- Organ / stage
- stage of plant developmente0
- Outcome
- priming effectse0
- Direction
- dependent one0
- Qualifier
- duration of droughte0
Not reportedTaxon
Verbatim
e0“priming effects are dependent on stage of plant development and duration of drought.”
Claim · model-written summary
BR priming induced fewer differentially expressed genes than no priming under well-watered conditions.
- Treatment
- BR priminge0
- Outcome
- differentially expressed genes (DEGs)e0
- Direction
- fewere0
- Qualifier
- well-watered conditione0
- Comparator
- no BR priminge0
Not reportedTaxon
Verbatim
e0“BR priming induced fewer differentially expressed genes (DEGs) than no BR priming under well-watered condition.”
Claim · model-written summary
BR priming under drought reduced the number of differentially expressed genes relative to drought alone.
Not reportedTaxon
Verbatim
e0“Drought with BR priming reduced the number of DEGs than drought only.”
Claim · model-written summary
The differentially expressed genes were enriched in varied ontologies and metabolic pathways.
Not reportedTaxon
Verbatim
e0“These DEGs were enriched in varied gene ontologies and metabolism pathways.”
Claim · model-written summary
Downregulation of light-perception and photosynthesis DEGs was consistent with low photosynthesis parameters.
Not reportedTaxon
Verbatim
e0“Downregulation of DEGs involved in both light perceiving and photosynthesis in leaves is consistent with low parameters of photosynthesis.”
Claim · model-written summary
Optimal BR priming partially rescued drought-reduced auxin levels.
Not reportedTaxonComparator
Verbatim
e0“Optimal BR priming partially rescued the levels of growth promoting auxin and gibberellin which were largely reduced by drought”
Claim · model-written summary
Optimal BR priming partially rescued drought-reduced gibberellin levels.
- Treatment
- Optimal BR priminge0
- Outcome
- levels of growth promoting auxin and gibberelline0
- Direction
- partially rescuede0
Not reportedTaxonComparator
Verbatim
e0“Optimal BR priming partially rescued the levels of growth promoting auxin and gibberellin which were largely reduced by drought”
Claim · model-written summary
Optimal BR priming increased abscisic acid after long-term drought.
Not reportedTaxonTreatmentComparator
Verbatim
e0“increased levels of defense associated abscisic acid and salicylic acid after long-term drought.”
Claim · model-written summary
Optimal BR priming increased salicylic acid after long-term drought.
- Outcome
- levels of defense associated abscisic acid and salicylic acide0
- Direction
- increasede0
- Qualifier
- long-term droughte0
Not reportedTaxonTreatmentComparator
Verbatim
e0“increased levels of defense associated abscisic acid and salicylic acid after long-term drought.”
Claim · model-written summary
BR priming induced kinase and transcription-factor DEGs under drought.
- Treatment
- BR priminge0
- Outcome
- DEGs which function as kinase or transcription factore0
- Direction
- inducede0
- Qualifier
- under droughte0
Not reportedTaxonComparator
Verbatim
e0“BR priming induced many DEGs which function as kinase or transcription factor for signal cascade under drought.”
Claim · model-written summary
The authors propose priming-induced regulatory responses are memorized and recalled for later drought adaptation.
Not reportedTaxon
Verbatim
e0“We proposed BR priming-induced regulatory responses will be memorized and recalled for fast adaptation in later drought stress.”
The same questions in other papers
brassinolide · yield · Arachis hypogaea (peanut)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →seed treatment · yield · Arachis hypogaea (peanut)Positive and negative results
63 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
61 papers more in this group
See all 65 papers →seed treatment · physiology: hormones · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
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.