Paper · 2013 · Russian Journal of Plant Physiology

Physiological and ultrastructural responses of Catharanthus roseus cell suspension to salt stress

S. Elkahoui; Z. Barhoumi; N. Djébali; et al.

12
claims
28
verbatim quotes
3
citations
1
research areas
—
Not open access

Abstract

Catharanthus roseus (L.) cell response to salinity was investigated. Seven days after cell treatment with 100 mM NaCl, they showed a decrease in dry weight and an increase in sodium and chloride contents (about 12.4- and 1.5-fold, respectively, in comparison to the control). At the ultrastructural level, NaCl treatment reduced cell size and increased plastid density. In addition, it reduced the starch grain size and their number per plastid; however, starch content was 1.5-fold increased, which was due to the increase in the plastid density. At the ultrastructural level, the applied salinity had no obvious effects, such as swelling or disorganization of plastids except a slight decrease in the stroma electron density. Equally, no deleterious effect was observed on mitochondria except a small increase of their crista volume and matrix electron density. It was shown that, although the relative sensitivity of C. roseus cells to salt stress pointed by the reduction in the dry weight, a decrease in the cell size, and the high accumulation of toxic ions, they preserved the integrity of their plastids and mitochondria.

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Claims 12

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NaCl treatment decreased the dry weight of Catharanthus roseus cells seven days after treatment.

Taxon
Catharanthus roseusCatharanthus roseuse0
Treatment
100 mM NaCle1
Outcome
dry weighte1
Direction
decreasee1
Qualifier
Seven days aftere1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e1

“Seven days after cell treatment with 100 mM NaCl, they showed a decrease in dry weight and an increase in sodium and chloride contents (about 12.4- and 1.5-fold, respectively, in comparison to the control).”

✓ located verbatim in the source · abstract, characters 69–275 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

NaCl treatment increased sodium and chloride contents of Catharanthus roseus cells, about 12.4- and 1.5-fold respectively relative to the control.

Taxon
Catharanthus roseusCatharanthus roseuse0
Treatment
100 mM NaCle1
Outcome
sodium and chloride contentse1
Direction
increasee1
Value
about 12.4- and 1.5-folde1
Qualifier
respectivelye1
Comparator
controle1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e1

“Seven days after cell treatment with 100 mM NaCl, they showed a decrease in dry weight and an increase in sodium and chloride contents (about 12.4- and 1.5-fold, respectively, in comparison to the control).”

✓ located verbatim in the source · abstract, characters 69–275 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NaCl treatment reduced the cell size of Catharanthus roseus cells at the ultrastructural level.

Taxon
Catharanthus roseusCatharanthus roseuse0
Treatment
NaCl treatmente3
Outcome
cell sizee3
Direction
reducede3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e3

“At the ultrastructural level, NaCl treatment reduced cell size and increased plastid density.”

✓ located verbatim in the source · abstract, characters 276–369 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NaCl treatment increased the plastid density of Catharanthus roseus cells.

Taxon
Catharanthus roseusCatharanthus roseuse0
Organ / stage
plastide3
Treatment
NaCl treatmente3
Outcome
plastid densitye3
Direction
increasede3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e3

“At the ultrastructural level, NaCl treatment reduced cell size and increased plastid density.”

✓ located verbatim in the source · abstract, characters 276–369 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NaCl treatment reduced the starch grain size and the number of starch grains per plastid.

Taxon
Catharanthus roseusCatharanthus roseuse0
Organ / stage
plastide4
Treatment
NaCl treatmente3
Outcome
starch grain size and their number per plastide4
Direction
reducede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e3

“At the ultrastructural level, NaCl treatment reduced cell size and increased plastid density.”

✓ located verbatim in the source · abstract, characters 276–369 · show in text ↑
e4

“In addition, it reduced the starch grain size and their number per plastid”

✓ located verbatim in the source · abstract, characters 370–444 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NaCl treatment increased starch content of Catharanthus roseus cells 1.5-fold.

Taxon
Catharanthus roseusCatharanthus roseuse0
Treatment
NaCl treatmente3
Outcome
starch contente5
Direction
increasede5
Value
1.5-folde5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e3

“At the ultrastructural level, NaCl treatment reduced cell size and increased plastid density.”

✓ located verbatim in the source · abstract, characters 276–369 · show in text ↑
e5

“however, starch content was 1.5-fold increased, which was due to the increase in the plastid density.”

✓ located verbatim in the source · abstract, characters 446–547 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The increase in starch content of Catharanthus roseus cells under NaCl is attributed to the increase in plastid density.

Taxon
Catharanthus roseusCatharanthus roseuse0
Outcome
starch contente5
Qualifier
due to the increase in the plastid densitye5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e5

“however, starch content was 1.5-fold increased, which was due to the increase in the plastid density.”

✓ located verbatim in the source · abstract, characters 446–547 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Applied salinity had no obvious effects such as swelling or disorganization of Catharanthus roseus plastids.

Taxon
Catharanthus roseusCatharanthus roseuse0
Treatment
applied salinitye6
Outcome
swelling or disorganization of plastidse6
Direction
no obvious effectse6

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e6

“At the ultrastructural level, the applied salinity had no obvious effects, such as swelling or disorganization of plastids”

✓ located verbatim in the source · abstract, characters 548–670 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Applied salinity slightly decreased the stroma electron density of Catharanthus roseus plastids.

Taxon
Catharanthus roseusCatharanthus roseuse0
Organ / stage
stromae7
Treatment
applied salinitye6
Outcome
stroma electron densitye7
Direction
decreasee7
Qualifier
slighte7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e6

“At the ultrastructural level, the applied salinity had no obvious effects, such as swelling or disorganization of plastids”

✓ located verbatim in the source · abstract, characters 548–670 · show in text ↑
e7

“except a slight decrease in the stroma electron density”

✓ located verbatim in the source · abstract, characters 671–726 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Applied salinity had no deleterious effect on Catharanthus roseus mitochondria.

Taxon
Catharanthus roseusCatharanthus roseuse0
Treatment
applied salinitye6
Outcome
mitochondriae7
Direction
no deleterious effecte7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e6

“At the ultrastructural level, the applied salinity had no obvious effects, such as swelling or disorganization of plastids”

✓ located verbatim in the source · abstract, characters 548–670 · show in text ↑
e7

“Equally, no deleterious effect was observed on mitochondria except a small increase of their crista volume and matrix electron density.”

✓ located verbatim in the source · abstract, characters 728–863 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Applied salinity slightly increased the crista volume and matrix electron density of Catharanthus roseus mitochondria.

Taxon
Catharanthus roseusCatharanthus roseuse0
Treatment
applied salinitye6
Outcome
crista volume and matrix electron densitye7
Direction
increasee7
Qualifier
smalle7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Catharanthus roseus (L.) cell response to salinity was investigated.”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e6

“At the ultrastructural level, the applied salinity had no obvious effects, such as swelling or disorganization of plastids”

✓ located verbatim in the source · abstract, characters 548–670 · show in text ↑
e7

“Equally, no deleterious effect was observed on mitochondria except a small increase of their crista volume and matrix electron density.”

✓ located verbatim in the source · abstract, characters 728–863 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Catharanthus roseus cells preserved the integrity of their plastids and mitochondria despite their sensitivity to salt stress.

Taxon
C. roseusCatharanthus roseuse1
Treatment
salt stresse1
Outcome
integrity of their plastids and mitochondriae1
Direction
preservede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Catharanthus roseus
Catharanthus roseus · Taxonimbeaul · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e1

“although the relative sensitivity of C. roseus cells to salt stress pointed by the reduction in the dry weight, a decrease in the cell size, and the high accumulation of toxic ions, they preserved the integrity of their plastids and mitochondria”

✓ located verbatim in the source · abstract, characters 883–1128 · show in text ↑

sodium chloride · growth · Catharanthus roseus (Madagascar periwinkle)Results agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

  1. negative
  2. negative
See all 3 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.