Abstract
Salinity is one of the most important environmental stresses that reduce plant growth and makes field crops less productive. Therefore, finding an effective, environmentally acceptable remedy for salinity stress is currently of paramount importance. There are many indications that silicon can ameliorate the injuries caused by high salinity. The current study was carried out to: (1) investigate the effect of NaCl-induced salt stress on the leaf cell ultrastructure of pea (Pisum sativum L.) plant, and (2) assess the possible ameliorative effects of silicon (Si) or nanosilicon (NSi) on the ultrastructural properties of pea plants grown in saline conditions. Various concentrations of NaCl (0, 100, 150, 200, and 250 mM) were used alone or in combination with Si (3 mM sodium silicate) or NSi (3 mM silicon dioxide nanoparticles) in this study. Transmission electron microscopy analysis revealed that chloroplasts underwent the most dramatic changes in leaf cell ultrastructure in response to salt stress. TEM micrographs of plants treated with different concentrations of salinity exhibited morphological deformations of chloroplasts such as swelling of thylakoids, disruption of the envelope, accumulation of plastoglobuli, and a reduction in the number of starch grains. The ultrastructural deformities of cellular organelles, especially chloroplasts, caused by salt were similarly seen to be largely repaired after treatments with Si or NSi. Ultrastructural alterations in these plants shed new light on the cellular-level effects of salt. In conclusion, we affirmed that salt stress is harmful to pea plants, and the addition of silicon showed effectiveness in mitigating the saline harmful effects.
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Claims 5
Claim · model-written summary
Salt stress caused the most dramatic ultrastructural changes in pea chloroplasts.
- Taxon
- pea
Lathyrus oleraceust0 - Organ / stage
- chloroplastse0
- Treatment
- salt stresse0
- Outcome
- changes in leaf cell ultrastructuree0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chloroplasts underwent the most dramatic changes in leaf cell ultrastructure in response to salt stress”
t0“pea plant”
Claim · model-written summary
Salinity deformed pea chloroplasts, including swollen thylakoids and disrupted envelopes.
- Taxon
- peaLathyrus oleraceust0
- Organ / stage
- chloroplastse0
- Treatment
- salinitye0
- Outcome
- morphological deformations of chloroplasts such as swelling of thylakoids, disruption of the envelopee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants treated with different concentrations of salinity exhibited morphological deformations of chloroplasts such as swelling of thylakoids, disruption of the envelope”
t0“pea plant”
Claim · model-written summary
Salinity increased plastoglobuli accumulation and reduced starch grain number in pea chloroplasts.
- Taxon
- peaLathyrus oleraceust0
- Organ / stage
- chloroplastse1
- Treatment
- salinityt1
- Outcome
- number of starch grainse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulation of plastoglobuli, and a reduction in the number of starch grains”
e1“chloroplasts underwent the most dramatic changes in leaf cell ultrastructure in response to salt stress”
t0“pea plant”
t1“leaf cell ultrastructure of pea plant under salinity stress”
Claim · model-written summary
Silicon largely repaired salt-induced ultrastructural deformities in pea cell organelles.
- Taxon
- peaLathyrus oleraceust0
- Organ / stage
- chloroplastse0
- Treatment
- Sie0
- Outcome
- ultrastructural deformities of cellular organellese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ultrastructural deformities of cellular organelles, especially chloroplasts, caused by salt were similarly seen to be largely repaired after treatments with Si”
t0“pea plant”
Claim · model-written summary
Nanosilicon largely repaired salt-induced ultrastructural deformities in pea cell organelles.
- Taxon
- peaLathyrus oleraceust0
- Organ / stage
- chloroplastse0
- Treatment
- NSie0
- Outcome
- ultrastructural deformities of cellular organellese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ultrastructural deformities of cellular organelles, especially chloroplasts, caused by salt were similarly seen to be largely repaired after treatments with Si or NSi”
t0“pea plant”
The same questions in other papers
salinity · quality: sugar starch · Lathyrus oleraceus (pea)Results agree
1 paper in the same direction as this paper
- 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.