Abstract
Sinapis alba L. (white mustard), an annual member of Brassicaceae, is an important oilseed crop with significant agronomic traits including tolerance to abiotic stress. The present study was aimed to assess the changes in biochemical attributes of S. alba, mainly the composition of lipids and fatty acids, in response to osmotic stress. Seedlings were subjected to stress condition by growing them on media supplemented with three different concentrations of polyethylene glycol (PEG 6000) solutions, respectively with ‑0.04, ‑0.16 and ‑0.64 MPa osmotic potential. Compatible solute content, lipid content, and lipid peroxidation of the seedlings were measured. Total fatty acid composition was analysed by gas chromatography mass spectrometry. Overall negative impact of PEG-mediated osmotic stress was apparent from seedling morphology. Total lipid content decreased in stressed plants together with increased level of triacylglycerol. Increase of lipid peroxidation in stressed condition indicated suppression of membrane integrity. The key outcome was the significant increase of unsaturation level of fatty acids due to higher accumulation of linoleic acid, α-linolenic acid and erucic acid in the seedlings exposed to higher osmotic stress. The results indicate that, in white mustard, the biochemical changes induced by osmotic stress mainly depend on changes in lipid composition and fatty acid unsaturation level, which maintain membrane stability during the early stage of seedling development.
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Claims 6
Claim · model-written summary
PEG stress negatively affected seedling morphology.
- Taxon
- Sinapis alba
Sinapis albat0 - Treatment
- PEG-mediated osmotic stresse0
- Outcome
- seedling morphologye0
- Direction
- negative impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall negative impact of PEG-mediated osmotic stress was apparent from seedling morphology”
t0“Sinapis alba”
Claim · model-written summary
Stress decreased total lipid content.
- Taxon
- Sinapis albaSinapis albat0
- Treatment
- stressede0
- Outcome
- Total lipid contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total lipid content decreased in stressed plants together with increased level of triacylglycerol”
t0“Sinapis alba”
Claim · model-written summary
Stress increased triacylglycerol.
- Taxon
- Sinapis albaSinapis albat0
- Treatment
- stressede0
- Outcome
- triacylglycerole0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total lipid content decreased in stressed plants together with increased level of triacylglycerol”
t0“Sinapis alba”
Claim · model-written summary
Stress increased lipid peroxidation.
- Taxon
- Sinapis albaSinapis albat0
- Treatment
- stressed conditione0
- Outcome
- lipid peroxidatione0
- Direction
- Increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increase of lipid peroxidation in stressed condition indicated suppression of membrane integrity”
t0“Sinapis alba”
Claim · model-written summary
Higher osmotic stress significantly increased fatty acid unsaturation.
- Taxon
- Sinapis albaSinapis albat0
- Treatment
- higher osmotic stresse0
- Outcome
- unsaturation level of fatty acidse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant increase of unsaturation level of fatty acids due to higher accumulation of linoleic acid, α-linolenic acid and erucic acid in the seedlings exposed to higher osmotic stress”
t0“Sinapis alba”
Claim · model-written summary
Higher stress increased linoleic, α-linolenic and erucic acid accumulation.
- Taxon
- Sinapis albaSinapis albat0
- Treatment
- higher osmotic stresse0
- Outcome
- accumulation of linoleic acid, α-linolenic acid and erucic acide0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher accumulation of linoleic acid, α-linolenic acid and erucic acid in the seedlings exposed to higher osmotic stress”
t0“Sinapis alba”
The same questions in other papers
drought · growth · Sinapis alba (white mustard)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
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.