Paper · 2013

Impact of Biofertilizer Trichoderma harzianum Rifai and the Biomarker Changes in Eruca Sativa L. Plant Grown in Metal-Polluted Soils

Aisha M. H. Al‐Rajhi

11
claims
20
verbatim quotes
12
citations
3
research areas
—
Not open access

Abstract

This study was designed to elucidate the role of Trichoderma harzianum Rifai as biofertilizer for improving the Eruca sativa plant growth in the presence of metals mixture. At the same time using the changes in plant metabolism as biomarker for evaluating the toxicity of metals on plant in the presence of these biofertilizers. E. sativa plants cultivated in soil inoculated with T. harzianum as a biofertilizer and were exposed to different concentrations (50, 100 and 200 ppm) of copper and zinc mixture as sulfate salts. The fatty acid composition of Eruca sativa could be used as an additional biomarker of soil contamination by metals mixture. Saturated (Palmitic and stearic acid) and unsaturated (oleic acid) fatty acid contents could be detected in the plant cultivated in soil at different treatments with T. harzianum in presence of different mixtures of copper and zinc concentrations, while other fatty acids were found to be affected by metals in the soil. Behenic acid was detected only at high concentration (100 and 200 ppm) in absence of T. harzianum inoculation. Stearic, arachidic and lignoceric acids could be detected at high concentrations with T. harzianum inoculation. Inoculation of T. harzianum in the soil improved the plant growth and minimizes the toxic effect of metals mixture. At the same time an increase in the content of chlorophyll (a) and (b) could be detected. Addition of T. harzianum to cultivated soil minimizes the absorbed amount of metals in plant, where the percentage of copper was 6.04 and 4.69% with uninoculation and inoculation of T. harzianum, respectively. On the other hand, copper and zinc mixture decreased the percentage of Mg metal in plant and the addition of T. harzianum +2 increased their percentage, where their percentage was 4.92% in presence of 100 ppm of metals mixture without T. harzianum and becoming 7.08% with T. harzianum. Exposure of Eruca sativa plant to high concentrations of metals mixture (100 ppm) without T. harzianum induced a significant increase in catalase and peroxidase enzymes activities.

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Claims 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation of T. harzianum in the soil improved the growth of Eruca sativa in metal-polluted soil.

Treatment
Inoculation of T. harzianume0
Interactor
T. harzianumTrichoderma harzianume0other
Outcome
plant growthe0
Direction
improvede0

Not reportedComparator

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · InteractorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Inoculation of T. harzianum in the soil improved the plant growth and minimizes the toxic effect of metals mixture”

✓ located verbatim in the source · abstract, characters 1194–1308 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation of T. harzianum in the soil minimized the toxic effect of the metals mixture on Eruca sativa.

Treatment
Inoculation of T. harzianume0
Interactor
T. harzianumTrichoderma harzianume0other
Outcome
toxic effect of metals mixturee0
Direction
minimizese0

Not reportedComparator

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · InteractorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Inoculation of T. harzianum in the soil improved the plant growth and minimizes the toxic effect of metals mixture”

✓ located verbatim in the source · abstract, characters 1194–1308 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

An increase in the content of chlorophyll a and b was detected in Eruca sativa grown with T. harzianum in metal-polluted soil.

Outcome
content of chlorophyll (a) and (b)e0
Direction
increasee0

Not reportedTreatmentComparator

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗

Verbatim

e0

“an increase in the content of chlorophyll (a) and (b) could be detected”

✓ located verbatim in the source · abstract, characters 1327–1398 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Adding T. harzianum to the soil minimized the amount of metals absorbed by Eruca sativa; copper was 6.04% without and 4.69% with inoculation.

Treatment
Addition of T. harzianume0
Interactor
T. harzianumTrichoderma harzianume0other
Outcome
absorbed amount of metals in plante0
Direction
minimizese0
Value
6.04 and 4.69%e0
Qualifier
percentage of coppere0
Comparator
uninoculatione0

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · InteractorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Addition of T. harzianum to cultivated soil minimizes the absorbed amount of metals in plant, where the percentage of copper was 6.04 and 4.69% with uninoculation and inoculation of T. harzianum, respectively”

✓ located verbatim in the source · abstract, characters 1400–1608 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The copper and zinc mixture decreased the percentage of Mg in Eruca sativa.

Treatment
copper and zinc mixturee0
Outcome
percentage of Mg metale0
Direction
decreasede0

Not reportedComparator

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗

Verbatim

e0

“copper and zinc mixture decreased the percentage of Mg metal in plant”

✓ located verbatim in the source · abstract, characters 1629–1698 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Addition of T. harzianum increased the Mg percentage in Eruca sativa, from 4.92% without T. harzianum to 7.08% with it at 100 ppm of metals mixture.

Treatment
addition of T. harzianume0
Interactor
T. harzianumTrichoderma harzianume0other
Outcome
their percentagee0
Direction
increasede0
Value
7.08%e0
Qualifier
4.92% in presence of 100 ppm of metals mixturee0
Comparator
without T. harzianume0

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · InteractorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the addition of T. harzianum +2 increased their percentage, where their percentage was 4.92% in presence of 100 ppm of metals mixture without T. harzianum and becoming 7.08% with T. harzianum”

✓ located verbatim in the source · abstract, characters 1703–1894 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Exposure of Eruca sativa to a high concentration of metals mixture (100 ppm) without T. harzianum induced a significant increase in catalase and peroxidase activities.

Treatment
high concentrations of metals mixture (100 ppm)e0
Outcome
catalase and peroxidase enzymes activitiese0
Direction
increasee0
Qualifier
without T. harzianume0

Not reportedComparator

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Exposure of Eruca sativa plant to high concentrations of metals mixture (100 ppm) without T. harzianum induced a significant increase in catalase and peroxidase enzymes activities”

✓ located verbatim in the source · abstract, characters 1896–2075 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Saturated (palmitic and stearic acid) and unsaturated (oleic acid) fatty acids were detected in Eruca sativa across the T. harzianum and Cu-Zn treatments.

Treatment
different treatments with T. harzianum in presence of different mixtures of copper and zinc concentrationse0
Outcome
Saturated (Palmitic and stearic acid) and unsaturated (oleic acid) fatty acid contentse0

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Saturated (Palmitic and stearic acid) and unsaturated (oleic acid) fatty acid contents could be detected in the plant cultivated in soil at different treatments with T. harzianum in presence of different mixtures of copper and zinc concentrations”

✓ located verbatim in the source · abstract, characters 650–896 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Behenic acid was detected in Eruca sativa only at high concentrations (100 and 200 ppm) of the metals mixture without T. harzianum inoculation.

Outcome
Behenic acid was detectede0
Qualifier
only at high concentration (100 and 200 ppm) in absence of T. harzianum inoculatione0

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Behenic acid was detected only at high concentration (100 and 200 ppm) in absence of T. harzianum inoculation”

✓ located verbatim in the source · abstract, characters 971–1080 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Stearic, arachidic and lignoceric acids were detected in Eruca sativa at high concentrations of the metals mixture with T. harzianum inoculation.

Outcome
Stearic, arachidic and lignoceric acids could be detectede0
Qualifier
at high concentrations with T. harzianum inoculatione0

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Stearic, arachidic and lignoceric acids could be detected at high concentrations with T. harzianum inoculation”

✓ located verbatim in the source · abstract, characters 1082–1192 · show in text ↑
t0

“Eruca Sativa”

✓ located verbatim in the source · title, characters 81–93 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors propose that the fatty acid composition of Eruca sativa could be used as an additional biomarker of soil contamination by a metals mixture.

Outcome
fatty acid compositione0
Qualifier
could be used as an additional biomarker of soil contamination by metals mixturee0

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

Eruca vesicaria subsp. sativa
Eruca vesicaria subsp. sativa · TaxonLeo Michels · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The fatty acid composition of Eruca sativa could be used as an additional biomarker of soil contamination by metals mixture”

✓ located verbatim in the source · abstract, characters 525–648 · show in text ↑

zinc atom · nutrient: content · Eruca vesicariaPositive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

Trichoderma harzianum · growth · Eruca vesicariaResults 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 →

inoculation · growth · Eruca vesicariaResults agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 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.