Paper · 2014 · Annual Research & Review in Biology

Effect of Exogenous Application of Brassinolide on Growth and Metabolic Activity of Wheat Seedlings under Normal and Salt Stress Conditions

Soad El-Feky

4
claims
5
verbatim quotes
14
citations
1
research areas
✓
Open access

Abstract

The present study was carried out to show the effect of brassinolide on normal and salt stressed wheat plant. Grains of wheat (Triticum aestivum sakha 93) were divided into four groups: seeds supplemented with 20 ml distilled water (control); seeds treated with NaCl solutions (25, 50, 100, and 200 mM); seeds supplemented with 0.1, 0.5, 1 and 2 mgL -1 brassinolide and seeds treated with a combination of 1mg.L -1 brassinolide and the mentioned NaCl concentrations. Root and shoot lengths, fresh and dry weights were measured as indicators for growth and biomass assessments while carbohydrates, proteins, amylase and protease were estimated as indicator for metabolic activity. Treatment of wheat seeds with different concentrations of brassinolide particularly 1mgL -1 causes a significant increase in growth parameters, carbohydrate fractions, total soluble proteins in root and shoot and the hydrolytic enzymes amylase and protease. Gradual increase in NaCl concentrations from 25mM to 200mM sharply decreased growth compared with the control. Results of this investigation showed that 1mgL

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Claims 4

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Brassinolide, particularly 1mgL -1, significantly increased wheat growth parameters.

Treatment
brassinolide particularly 1mgL -1e0
Outcome
growth parameterse0
Direction
increasee0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment of wheat seeds with different concentrations of brassinolide particularly 1mgL -1 causes a significant increase in growth parameters”

✓ located verbatim in the source · abstract, characters 680–822 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Brassinolide significantly increased wheat carbohydrate fractions and soluble proteins.

Organ / stage
root and shoote0
Treatment
brassinolide particularly 1mgL -1e0
Outcome
carbohydrate fractions, total soluble proteinse0
Direction
increasee0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment of wheat seeds with different concentrations of brassinolide particularly 1mgL -1 causes a significant increase in growth parameters, carbohydrate fractions, total soluble proteins in root and shoot”

✓ located verbatim in the source · abstract, characters 680–888 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Brassinolide significantly increased wheat amylase and protease.

Treatment
brassinolide particularly 1mgL -1e0
Gene
amylase and proteasee0
Outcome
hydrolytic enzymes amylase and proteasee0
Direction
increasee0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment of wheat seeds with different concentrations of brassinolide particularly 1mgL -1 causes a significant increase in growth parameters, carbohydrate fractions, total soluble proteins in root and shoot and the hydrolytic enzymes amylase and protease.”

✓ located verbatim in the source · abstract, characters 680–937 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing NaCl from 25mM to 200mM sharply decreased wheat growth versus control.

Treatment
NaCl concentrations from 25mM to 200mMe0
Outcome
growthe0
Direction
decreasede0
Comparator
the controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Gradual increase in NaCl concentrations from 25mM to 200mM sharply decreased growth compared with the control.”

✓ located verbatim in the source · abstract, characters 938–1048 · show in text ↑
t0

“Wheat Seedlings”

✓ located verbatim in the source · title, characters 84–99 · show in text ↑

sodium chloride · growth · Triticum aestivum (wheat)Results differ

137 papers: 24 positive, 113 negative or no effect

112 papers in the same direction as this paper · 24 in the opposite direction

  1. positive
  2. positive
  3. positive

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brassinolide · physiology: osmolytes · Triticum aestivum (wheat)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

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

brassinolide · growth · Triticum aestivum (wheat)Results agree

9 papers: 9 positive, 0 negative or no effect

8 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 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.