Abstract
Plantago albicans L. (Plantaginaceae) grows in wastelands, slopes, and stony pastures, with dry and sun-exposed soils. Its seeds produce a mucilaginous coat. The main aim of this study was to evaluate intraspecific variation of osmotic and salinity stress response and mucilage production in P. albicans seeds. The relationships between osmotic and salinity stress, germination characteristics, and mucilage expansion were studied in eight populations of P. albicans. Seeds were germinated in distilled water, 20% (w/v) polyethylene glycol 6000 (PEG), or 100 mM NaCl solutions. In most populations, PEG and NaCl reduced final germination. Also, germination was slowed more significantly under osmotic stress than under salinity, while mucilage expansion was more affected by salinity. Therefore, there was an inverse correlation between mucilage expansion and germination under salinity and osmotic stress. Seed populations with similar climatic parameters showed different germination response; however, a correlation was found between mucilage expansion and some climatic parameters. Seeds from drier habitats germinated faster under water stress and produced more mucilage under control and water stress than populations from more humid areas.
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Claims 9
Claim · model-written summary
Polyethylene glycol (osmotic stress) reduced final germination of Plantago albicans seeds relative to distilled water in most populations.
- Taxon
- Plantago albicans
Plantago albicanse0 - Treatment
- 20% (w/v) polyethylene glycol 6000 (PEG)e1
- Outcome
- final germinatione2
- Direction
- reducede2
- Qualifier
- In most populationse2
- Comparator
- distilled watere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e1“Seeds were germinated in distilled water, 20% (w/v) polyethylene glycol 6000 (PEG), or 100 mM NaCl solutions”
e2“In most populations, PEG and NaCl reduced final germination”
Claim · model-written summary
NaCl (salinity) reduced final germination of Plantago albicans seeds relative to distilled water in most populations.
- Taxon
- Plantago albicansPlantago albicanse0
- Treatment
- 100 mM NaCle1
- Outcome
- final germinatione2
- Direction
- reducede2
- Qualifier
- In most populationse2
- Comparator
- distilled watere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e1“Seeds were germinated in distilled water, 20% (w/v) polyethylene glycol 6000 (PEG), or 100 mM NaCl solutions”
e2“In most populations, PEG and NaCl reduced final germination”
Claim · model-written summary
Germination was slowed more significantly under osmotic stress than under salinity in Plantago albicans.
- Taxon
- Plantago albicansPlantago albicanse0
- Treatment
- osmotic stresse3
- Outcome
- germinatione3
- Direction
- slowede3
- Qualifier
- more significantlye3
- Comparator
- salinitye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e3“germination was slowed more significantly under osmotic stress than under salinity”
Claim · model-written summary
Mucilage expansion of Plantago albicans seeds was more affected by salinity.
- Taxon
- Plantago albicansPlantago albicanse0
- Treatment
- salinitye4
- Outcome
- mucilage expansione4
- Qualifier
- more affectede4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e4“while mucilage expansion was more affected by salinity”
Claim · model-written summary
Mucilage expansion and germination of Plantago albicans seeds were inversely correlated under salinity and osmotic stress.
- Taxon
- Plantago albicansPlantago albicanse0
- Treatment
- salinity and osmotic stresse5
- Outcome
- mucilage expansion and germinatione5
- Direction
- inversee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e5“there was an inverse correlation between mucilage expansion and germination under salinity and osmotic stress”
Claim · model-written summary
Seed populations of Plantago albicans with similar climatic parameters showed different germination responses.
- Taxon
- Plantago albicansPlantago albicanse0
- Outcome
- germination responsee6
- Qualifier
- similar climatic parameterse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e6“Seed populations with similar climatic parameters showed different germination response”
Claim · model-written summary
A correlation was found between mucilage expansion of Plantago albicans seeds and some climatic parameters.
- Taxon
- Plantago albicansPlantago albicanse0
- Treatment
- some climatic parameterse7
- Outcome
- mucilage expansione7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e7“a correlation was found between mucilage expansion and some climatic parameters”
Claim · model-written summary
Seeds from drier habitats germinated faster under water stress.
- Taxon
- Plantago albicansPlantago albicanse0
- Treatment
- water stresse1
- Outcome
- germinatede1
- Direction
- fastere1
- Setting
- drier habitatse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e1“Seeds from drier habitats germinated faster under water stress”
Claim · model-written summary
Seeds from drier habitats produced more mucilage under control and water stress than populations from more humid areas.
- Taxon
- Plantago albicansPlantago albicanse0
- Treatment
- control and water stresse2
- Outcome
- mucilagee2
- Direction
- moree2
- Comparator
- populations from more humid arease2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantago albicans L. (Plantaginaceae)”
e2“produced more mucilage under control and water stress than populations from more humid areas”
The same questions in other papers
poly(ethylene glycol) · growth · Plantago albicansResults agree
1 paper in the same direction as this paper
- negative
sodium chloride · growth · Plantago albicansResults agree
1 paper in the same direction as this paper
- negative
drought · growth · Plantago albicansResults agree
2 papers in the same direction as this paper
- negative
- 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.