Paper · 2026 · Biodegradation

Trichoderma harzianum enhances lettuce biomass and modulates plant-soil emerging contaminant dynamics under reclaimed wastewater irrigation

Monica Brienza; Juan Manuel Peña-Herrera; Vincenzo Trotta; et al.

5
claims
10
verbatim quotes
0
citations
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research areas
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Open access · cc-by

Abstract

The use of wastewater for irrigation in agricultural soils offers a sustainable means to reduce freshwater consumption and recycle nutrients, but also poses contamination risks associated with emerging pollutants. Furthermore, potentially toxic transformation products may form in soil and rhizosphere, and could subsequently be taken up by plants. Several products containing spores of symbiotic fungi are available and could serve as effective solutions to enhance the biodegradation of micropollutants in agricultural soils irrigated with treated wastewater. In this study, the effect of the fungus Trichoderma harzianum on the distribution of two emerging contaminants, carbamazepine and climbazole, and their main transformation products among soil and lettuce tissues was investigated under controlled conditions. Physiological effects were also investigated by quantifying phytohormones in roots and leaves. Inoculation with Trichoderma harzianum did not significantly affect the uptake of the parent compounds but increased the concentration of their transformation products in soil and reduced their levels in plant leaves after three weeks. The fungus enhanced plant biomass and altered certain phytohormones involved in defense mechanisms such as salicylic acid and microbiome recruitment in roots and soils. Findings of this study provide valuable insights that can be effectively applied to crop cultivation using reclaimed wastewater, leveraging readily available biological products for improved sustainable practices.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Inoculation did not significantly affect lettuce uptake of parent contaminants.

Taxon
lettuceLactuca sativat0
Treatment
Inoculation with Trichoderma harzianume0
Interactor
Trichoderma harzianumTrichoderma harzianume0symbiont
Outcome
uptake of the parent compoundse0

Not reportedComparatorDirection

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · 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 with Trichoderma harzianum did not significantly affect the uptake of the parent compounds”

✓ located verbatim in the source · abstract, characters 915–1017 · show in text ↑
t0

“lettuce”

✓ located verbatim in the source · title, characters 31–38 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Inoculation increased transformation product concentrations in soil.

Taxon
lettuceLactuca sativat0
Treatment
Inoculation with Trichoderma harzianume0
Interactor
Trichoderma harzianumTrichoderma harzianume0symbiont
Outcome
concentration of their transformation products in soile0
Direction
increasede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · 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 with Trichoderma harzianum did not significantly affect the uptake of the parent compounds but increased the concentration of their transformation products in soil”

✓ located verbatim in the source · abstract, characters 915–1090 · show in text ↑
t0

“lettuce”

✓ located verbatim in the source · title, characters 31–38 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation reduced transformation product levels in lettuce leaves after three weeks.

Taxon
lettuceLactuca sativat0
Treatment
Inoculation with Trichoderma harzianume0
Interactor
Trichoderma harzianumTrichoderma harzianume0symbiont
Outcome
levels in plant leavese0
Direction
reducede0
Qualifier
after three weekse0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · 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 with Trichoderma harzianum did not significantly affect the uptake of the parent compounds but increased the concentration of their transformation products in soil and reduced their levels in plant leaves after three weeks.”

✓ located verbatim in the source · abstract, characters 915–1150 · show in text ↑
t0

“lettuce”

✓ located verbatim in the source · title, characters 31–38 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The fungus enhanced lettuce biomass.

Taxon
lettuceLactuca sativat0
Treatment
Trichoderma harzianumt0
Interactor
Trichoderma harzianumTrichoderma harzianumt0symbiont
Outcome
plant biomasse0
Direction
enhancede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · 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 fungus enhanced plant biomass”

✓ located verbatim in the source · abstract, characters 1151–1184 · show in text ↑
t0

“Trichoderma harzianum enhances lettuce biomass”

✓ located verbatim in the source · title, characters 0–46 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The fungus altered salicylic acid and other phytohormones associated with defence in roots and soils.

Taxon
lettuceLactuca sativat0
Organ / stage
rootse0
Treatment
Trichoderma harzianumt0
Interactor
Trichoderma harzianumTrichoderma harzianumt0symbiont
Outcome
certain phytohormones involved in defense mechanisms such as salicylic acide0

Not reportedComparatorDirection

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · 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

“altered certain phytohormones involved in defense mechanisms such as salicylic acid and microbiome recruitment in roots and soils.”

✓ located verbatim in the source · abstract, characters 1189–1319 · show in text ↑
t0

“Trichoderma harzianum enhances lettuce biomass”

✓ located verbatim in the source · title, characters 0–46 · show in text ↑

Trichoderma harzianum · growth · Lactuca sativa (garden lettuce)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

inoculation · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results

26 papers: 24 positive, 2 negative or no effect

1 paper in the same direction as this paper · 24 in the opposite direction

  1. positive
  2. positive
  3. positive

22 papers more in this group

See all 26 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.