Paper · 2008 · Biologia Plantarum

Effects of silicon on photosynthesis, water relations and nutrient uptake of Phaseolus vulgaris under NaCl stress

P. Zuccarini

8
claims
18
verbatim quotes
132
citations
1
research areas
✓
Open access

Abstract

A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water). Salinity significantly reduced growth, stomatal conductance and net photosynthetic rate, and increased Na+ and Cl- content mainly in roots. Silicon application enhanced growth of salt stressed plants, significantly reduced Na+ content especially in leaves and counterbalanced the effects of NaCl on gas exchange; the effect was more evident at 30 mM NaCl. Cl- content in shoots and roots was not significantly modified by silicon application; the drop in K+ content caused by salinity was partially counterbalanced by silicon, especially in roots.

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Claims 8

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salinity reduced growth, stomatal conductance and net photosynthetic rate of Phaseolus vulgaris in a greenhouse experiment.

Taxon
Phaseolus vulgarisPhaseolus vulgarise1
Treatment
Salinitye2
Outcome
growth, stomatal conductance and net photosynthetic ratee2
Direction
reducede2
Setting
greenhousee1

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water)”

✓ located verbatim in the source · abstract, characters 0–188 · show in text ↑
e2

“Salinity significantly reduced growth, stomatal conductance and net photosynthetic rate, and increased Na+ and Cl- content mainly in roots”

✓ located verbatim in the source · abstract, characters 190–328 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity increased Na+ and Cl- content of Phaseolus vulgaris, mainly in roots.

Taxon
Phaseolus vulgarisPhaseolus vulgarise1
Organ / stage
rootse2
Treatment
Salinitye2
Outcome
Na+ and Cl- contente2
Direction
increasede2

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water)”

✓ located verbatim in the source · abstract, characters 0–188 · show in text ↑
e2

“Salinity significantly reduced growth, stomatal conductance and net photosynthetic rate, and increased Na+ and Cl- content mainly in roots”

✓ located verbatim in the source · abstract, characters 190–328 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Silicon application enhanced growth of salt-stressed Phaseolus vulgaris plants.

Taxon
Phaseolus vulgarisPhaseolus vulgarise1
Treatment
Silicon applicatione3
Outcome
growthe3
Direction
enhancede3
Comparator
salt stressed plantse3

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water)”

✓ located verbatim in the source · abstract, characters 0–188 · show in text ↑
e3

“Silicon application enhanced growth of salt stressed plants”

✓ located verbatim in the source · abstract, characters 330–389 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Silicon application significantly reduced Na+ content, especially in leaves, of salt-stressed Phaseolus vulgaris.

Taxon
Phaseolus vulgarisPhaseolus vulgarise1
Organ / stage
leavese4
Treatment
Silicon applicatione3
Outcome
Na+ contente4
Direction
reducede4

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water)”

✓ located verbatim in the source · abstract, characters 0–188 · show in text ↑
e3

“Silicon application enhanced growth of salt stressed plants”

✓ located verbatim in the source · abstract, characters 330–389 · show in text ↑
e4

“significantly reduced Na+ content especially in leaves”

✓ located verbatim in the source · abstract, characters 391–445 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Silicon counterbalanced the effects of NaCl on gas exchange of Phaseolus vulgaris, more evident at 30 mM NaCl.

Taxon
Phaseolus vulgarisPhaseolus vulgarise1
Treatment
Silicon applicatione3
Outcome
gas exchangee5
Direction
counterbalancede5
Qualifier
more evident at 30 mM NaCle5

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water)”

✓ located verbatim in the source · abstract, characters 0–188 · show in text ↑
e3

“Silicon application enhanced growth of salt stressed plants”

✓ located verbatim in the source · abstract, characters 330–389 · show in text ↑
e5

“counterbalanced the effects of NaCl on gas exchange; the effect was more evident at 30 mM NaCl”

✓ located verbatim in the source · abstract, characters 450–544 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Silicon application did not significantly modify shoot and root Cl- content of Phaseolus vulgaris.

Taxon
Phaseolus vulgarisPhaseolus vulgarise1
Organ / stage
shoots and rootse6
Treatment
silicon applicatione6
Outcome
Cl- contente6
Direction
not significantly modifiede6

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water)”

✓ located verbatim in the source · abstract, characters 0–188 · show in text ↑
e6

“Cl- content in shoots and roots was not significantly modified by silicon application”

✓ located verbatim in the source · abstract, characters 546–631 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Silicon partially counterbalanced the salinity-caused drop in K+ content of Phaseolus vulgaris, especially in roots.

Taxon
Phaseolus vulgarisPhaseolus vulgarise1
Organ / stage
rootse7
Treatment
silicone7
Outcome
K+ contente7
Direction
partially counterbalancede7

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water)”

✓ located verbatim in the source · abstract, characters 0–188 · show in text ↑
e7

“the drop in K+ content caused by salinity was partially counterbalanced by silicon, especially in roots”

✓ located verbatim in the source · abstract, characters 633–736 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity caused a drop in K+ content of Phaseolus vulgaris.

Taxon
Phaseolus vulgarisPhaseolus vulgarise1
Treatment
salinitye7
Outcome
K+ contente7
Direction
drope7

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“A greenhouse experiment was conducted to investigate the effects of silicon application on Phaseolus vulgaris L. under two levels of salt stress (30 and 60 mM NaCl in the irrigation water)”

✓ located verbatim in the source · abstract, characters 0–188 · show in text ↑
e7

“the drop in K+ content caused by salinity was partially counterbalanced by silicon, especially in roots”

✓ located verbatim in the source · abstract, characters 633–736 · show in text ↑

silicon atom · molecular: metabolites · Phaseolus vulgaris (common bean)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

3 in the opposite direction

  1. positive
  2. positive
  3. positive
See all 4 papers →

silicon atom · growth · Phaseolus vulgaris (common bean)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

9 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. no effect
  3. positive

8 papers more in this group

See all 12 papers →

silicon atom · physiology: gas exchange · Phaseolus vulgaris (common bean)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

silicon atom · physiology: ion balance · Phaseolus vulgaris (common bean)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

salinity · physiology: ion balance · Phaseolus vulgaris (common bean)Results agree

4 papers: 0 positive, 4 negative or no effect

3 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative
See all 4 papers →

salinity · physiology: photosynthesis · Phaseolus vulgaris (common bean)Results agree

23 papers: 0 positive, 23 negative or no effect

22 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

19 papers more in this group

See all 23 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.