Abstract
Under global climate change, cabbage (Brassica oleracea var. capitata), a major vegetable crop, is increasingly exposed to intermittent and fluctuating drought stress. A multi-level investigation of its adaptive strategies under water-deficit conditions is therefore essential for a comprehensive understanding of drought tolerance and for accelerating genetic breeding programs. In this study, the drought-resistant cultivar ‘ZG-628’ and the drought-sensitive cultivar ‘ZG-21’ were selected based on seed germination indices. Integrated physiological measurements, transcriptomic profiling, and metabolomic analyses were conducted to systematically compare their responses to drought stress. The results showed that the drought-resistant genotype ‘ZG-628’ maintained better water status, exhibited higher antioxidant enzyme activities, and accumulated greater levels of osmotic regulators under drought conditions. In addition, ‘ZG-628’ preserved higher chlorophyll content and photosynthetic efficiency than the sensitive genotype. At the molecular level, ‘ZG-628’ primarily responded to drought through key components of the abscisic acid (ABA) signaling pathway, including PYL, PP2C, and SnRK2. Metabolomic analysis further revealed preferential accumulation of flavonoids and ABA-related metabolites ‘ZG-628’, accompanied by specific activation of the “flavonoid and flavonol biosynthesis” pathway. Integrated multi-omics analysis indicated that plant hormone signal transduction was the most significantly enriched pathway among drought-responsive differentially expressed genes. Overall, this study systematically elucidates the coordinated multi-omics mechanisms underlying drought resistance in cabbage and provides both a theoretical basis and potential molecular targets for breeding drought-tolerant cabbage varieties.
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Claims 8
Claim · model-written summary
Drought-resistant ZG-628 maintained better water status under drought conditions.
- Taxon
- Cabbage
Brassica oleracea var. capitatat0 - Material
- ZG-628e0
- Treatment
- drought conditionse0
- Outcome
- water statuse0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cabbage”
e0“The results showed that the drought-resistant genotype ‘ZG-628’ maintained better water status, exhibited higher antioxidant enzyme activities, and accumulated greater levels of osmotic regulators under drought conditions”
Claim · model-written summary
ZG-628 exhibited higher antioxidant enzyme activities under drought conditions.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Material
- ZG-628e0
- Treatment
- drought conditionse0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cabbage”
e0“The results showed that the drought-resistant genotype ‘ZG-628’ maintained better water status, exhibited higher antioxidant enzyme activities, and accumulated greater levels of osmotic regulators under drought conditions”
Claim · model-written summary
ZG-628 accumulated greater levels of osmotic regulators under drought conditions.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Material
- ZG-628e0
- Treatment
- drought conditionse0
- Outcome
- osmotic regulatorse0
- Direction
- greater levelse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cabbage”
e0“The results showed that the drought-resistant genotype ‘ZG-628’ maintained better water status, exhibited higher antioxidant enzyme activities, and accumulated greater levels of osmotic regulators under drought conditions”
Claim · model-written summary
ZG-628 preserved higher chlorophyll content and photosynthetic efficiency than the sensitive genotype.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Material
- ZG-628e1
- Outcome
- chlorophyll content and photosynthetic efficiencye1
- Direction
- highere1
- Comparator
- the sensitive genotypee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cabbage”
e1“In addition, ‘ZG-628’ preserved higher chlorophyll content and photosynthetic efficiency than the sensitive genotype”
Claim · model-written summary
ZG-628 responded to drought through key abscisic acid (ABA) signalling components PYL, PP2C and SnRK2.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Material
- ZG-628e2
- Gene
- PYL, PP2C, and SnRK2e2
- Compound
- abscisic acid (ABA)e2
- Outcome
- primarily responded to droughte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cabbage”
e2“At the molecular level, ‘ZG-628’ primarily responded to drought through key components of the abscisic acid (ABA) signaling pathway, including PYL, PP2C, and SnRK2”
Claim · model-written summary
ZG-628 showed preferential accumulation of flavonoids and ABA-related metabolites.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Material
- ZG-628e3
- Compound
- flavonoidse3
- Outcome
- accumulation of flavonoids and ABA-related metabolitese3
- Direction
- preferential accumulatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cabbage”
e3“Metabolomic analysis further revealed preferential accumulation of flavonoids and ABA-related metabolites ‘ZG-628’, accompanied by specific activation of the “flavonoid and flavonol biosynthesis” pathway”
Claim · model-written summary
The flavonoid and flavonol biosynthesis pathway was specifically activated in ZG-628.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Material
- ZG-628e3
- Outcome
- flavonoid and flavonol biosynthesise3
- Direction
- specific activatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cabbage”
e3“Metabolomic analysis further revealed preferential accumulation of flavonoids and ABA-related metabolites ‘ZG-628’, accompanied by specific activation of the “flavonoid and flavonol biosynthesis” pathway”
Claim · model-written summary
Plant hormone signal transduction was the most significantly enriched pathway among drought-responsive differentially expressed genes.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Outcome
- plant hormone signal transductione4
- Qualifier
- most significantly enriched pathwaye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cabbage”
e4“plant hormone signal transduction was the most significantly enriched pathway among drought-responsive differentially expressed genes”
The same questions in other papers
drought · physiology: water · Brassica oleracea (wild cabbage)Positive and negative results
6 in the opposite direction
- negative
- negative
- negative
3 papers more in this group
See all 7 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.