Paper · 2025 · Journal of Scientific Research in Science /Journal of Scientific Research in Science

Utilizing Chitinolytic Fungi for the Biocontrol of Root-Knot Nematode Infections

Dina Ibrahim

18
claims
36
verbatim quotes
0
citations
3
research areas
✓
Open access · cc-by-nc-sa

Abstract

Chitinolytic organisms invade soil undetected and are valuable sources of secondary metabolites. This research identified promising chitinolytic fungal strains from strawberry-growing soils for use as nematicides against root-knot nematodes, discovering five potent fungi: Aspergillus niveus, A. oryzae, Fusarium incarnatum, Purpureocillium lilacinum, and Trichoderma yunnanense. A. oryzae had the highest chitinolytic activity at 0.8427. Gas chromatography-mass spectrometry (GC-MS) revealed beneficial volatile metabolites, and toxicological assessments showed all isolates were safe at a 1 ml/rat dose.In lab trials, A. niveus and A. oryzae effectively prevented Meloidogyne javanica hatching, while T. yunnanense and A. niveus had the highest juvenile mortality rates. Greenhouse tests showed A. niveus reduced root-knot nematode populations by 70%, and field trials indicated that P. lilacinum and A. oryzae enhanced strawberry growth. All fungal treatments decreased nematode populations by 25.3% to 63.1% and improved strawberries' total soluble solids, sugar content, firmness, and vitamin C levels. A. oryzae increased polyphenol oxidase (PPO) and peroxidase (PO) activities, while T. yunnanense produced high phenolic compounds. A. niveus also raised proline content, enhancing plant resilience. This study suggests that these chitinolytic fungi can provide sustainable solutions for nematode management and improve agricultural practices.

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

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Claims 18

Observationobservedoriginal resultmeasured

Claim · model-written summary

Five chitinolytic fungal strains with nematicidal potential were identified from strawberry-growing soils.

Taxon
strawberryFragaria ×ananassae1
Outcome
chitinolytic fungal strainse1
Value
fivee2

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“discovering five potent fungi: Aspergillus niveus, A. oryzae, Fusarium incarnatum, Purpureocillium lilacinum, and Trichoderma yunnanense”

✓ located verbatim in the source · abstract, characters 242–378 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

A. oryzae had the highest chitinolytic activity (0.8427).

Taxon
strawberryFragaria ×ananassae1
Interactor
A. oryzaeAspergillus oryzaee3biocontrol_agent
Outcome
chitinolytic activitye3
Direction
higheste3
Value
0.8427e3

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗
Aspergillus oryzae
Aspergillus oryzae · InteractorForrest O. · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e3

“A. oryzae had the highest chitinolytic activity at 0.8427”

✓ located verbatim in the source · abstract, characters 380–437 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

GC-MS revealed beneficial volatile metabolites in the fungal isolates.

Taxon
strawberryFragaria ×ananassae1
Outcome
volatile metabolitese4
Qualifier
beneficiale4

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e4

“Gas chromatography-mass spectrometry (GC-MS) revealed beneficial volatile metabolites”

✓ located verbatim in the source · abstract, characters 439–524 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

All fungal isolates were safe at a 1 ml/rat dose in toxicological assessments.

Taxon
strawberryFragaria ×ananassae1
Outcome
toxicological assessmentse5
Qualifier
all isolates were safe at a 1 ml/rat dosee5

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e5

“toxicological assessments showed all isolates were safe at a 1 ml/rat dose”

✓ located verbatim in the source · abstract, characters 530–604 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. niveus effectively prevented Meloidogyne javanica hatching in the lab.

Taxon
strawberryFragaria ×ananassae1
Treatment
A. niveuse6
Interactor
Meloidogyne javanicaMeloidogyne javanicae6pest
Second interactor
A. niveusAspergillus niveuse6biocontrol_agent
Outcome
Meloidogyne javanica hatchinge6
Direction
preventede6

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗
Aspergillus niveus
Aspergillus niveus · Second interactorLine Ledsgaard Jensen, Mikael Rørdam Andersen, Ellen Kirstine Lyhne · Public domain · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e6

“A. niveus and A. oryzae effectively prevented Meloidogyne javanica hatching”

✓ located verbatim in the source · abstract, characters 620–695 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. oryzae effectively prevented Meloidogyne javanica hatching in the lab.

Taxon
strawberryFragaria ×ananassae1
Treatment
A. oryzaee6
Interactor
Meloidogyne javanicaMeloidogyne javanicae6pest
Second interactor
A. oryzaeAspergillus oryzaee6biocontrol_agent
Outcome
Meloidogyne javanica hatchinge6
Direction
preventede6

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗
Aspergillus oryzae
Aspergillus oryzae · Second interactorForrest O. · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e6

“A. niveus and A. oryzae effectively prevented Meloidogyne javanica hatching”

✓ located verbatim in the source · abstract, characters 620–695 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T. yunnanense had a high juvenile mortality rate of nematodes in the lab.

Taxon
strawberryFragaria ×ananassae1
Treatment
T. yunnanensee7
Outcome
juvenile mortality ratese7
Direction
higheste7

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e7

“T. yunnanense and A. niveus had the highest juvenile mortality rates”

✓ located verbatim in the source · abstract, characters 703–771 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. niveus had a high juvenile mortality rate of nematodes in the lab, together with T. yunnanense.

Taxon
strawberryFragaria ×ananassae1
Treatment
A. niveuse7
Outcome
juvenile mortality ratese7
Direction
higheste7

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e7

“T. yunnanense and A. niveus had the highest juvenile mortality rates”

✓ located verbatim in the source · abstract, characters 703–771 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In greenhouse tests, A. niveus reduced root-knot nematode populations by 70%.

Taxon
strawberryFragaria ×ananassae1
Treatment
A. niveuse2
Interactor
root-knot nematodeMeloidogynee2pest
Outcome
root-knot nematode populationse2
Direction
reducede2
Value
70%e2
Setting
Greenhousee2

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗
Meloidogyne
Meloidogyne · Interactor · picture of the genus (one of its species)Photo by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“Greenhouse tests showed A. niveus reduced root-knot nematode populations by 70%”

✓ located verbatim in the source · abstract, characters 773–852 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P. lilacinum enhanced strawberry growth in field trials.

Taxon
strawberryFragaria ×ananassae2
Treatment
P. lilacinume2
Outcome
strawberry growthe2
Direction
enhancede2
Setting
field trialse2

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“field trials indicated that P. lilacinum and A. oryzae enhanced strawberry growth”

✓ located verbatim in the source · abstract, characters 858–939 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. oryzae enhanced strawberry growth in field trials.

Taxon
strawberryFragaria ×ananassae2
Treatment
A. oryzaee2
Outcome
strawberry growthe2
Direction
enhancede2
Setting
field trialse2

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“field trials indicated that P. lilacinum and A. oryzae enhanced strawberry growth”

✓ located verbatim in the source · abstract, characters 858–939 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All fungal treatments decreased nematode populations by 25.3% to 63.1%.

Taxon
strawberriesFragaria ×ananassae2
Treatment
All fungal treatmentse2
Interactor
nematodeNematodae2pest
Outcome
nematode populationse2
Direction
decreasede2
Value
25.3% to 63.1%e2

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“All fungal treatments decreased nematode populations by 25.3% to 63.1% and improved strawberries' total soluble solids, sugar content, firmness, and vitamin C levels”

✓ located verbatim in the source · abstract, characters 941–1106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All fungal treatments improved total soluble solids, sugar content and firmness of strawberries.

Taxon
strawberriesFragaria ×ananassae2
Treatment
All fungal treatmentse2
Outcome
total soluble solids, sugar content, firmnesse2
Direction
improvede2

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“All fungal treatments decreased nematode populations by 25.3% to 63.1% and improved strawberries' total soluble solids, sugar content, firmness, and vitamin C levels”

✓ located verbatim in the source · abstract, characters 941–1106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All fungal treatments improved vitamin C levels of strawberries.

Taxon
strawberriesFragaria ×ananassae2
Treatment
All fungal treatmentse2
Outcome
vitamin C levelse2
Direction
improvede2

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“All fungal treatments decreased nematode populations by 25.3% to 63.1% and improved strawberries' total soluble solids, sugar content, firmness, and vitamin C levels”

✓ located verbatim in the source · abstract, characters 941–1106 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A. oryzae increased polyphenol oxidase and peroxidase activities in strawberry.

Taxon
strawberryFragaria ×ananassae1
Treatment
A. oryzaee2
Outcome
polyphenol oxidase (PPO) and peroxidase (PO) activitiese2
Direction
increasede2

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“A. oryzae increased polyphenol oxidase (PPO) and peroxidase (PO) activities”

✓ located verbatim in the source · abstract, characters 1108–1183 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

T. yunnanense produced high levels of phenolic compounds in strawberry.

Taxon
strawberryFragaria ×ananassae1
Interactor
T. yunnanenseTrichoderma yunnanensee2biocontrol_agent
Outcome
phenolic compoundse2
Qualifier
highe2

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“T. yunnanense produced high phenolic compounds”

✓ located verbatim in the source · abstract, characters 1191–1237 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. niveus raised proline content, enhancing plant resilience.

Taxon
strawberryFragaria ×ananassae1
Treatment
A. niveuse2
Outcome
proline contente2
Direction
raisede2
Qualifier
enhancing plant resiliencee2

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“A. niveus also raised proline content, enhancing plant resilience”

✓ located verbatim in the source · abstract, characters 1239–1304 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Chitinolytic fungi are suggested to provide sustainable solutions for nematode management.

Taxon
strawberryFragaria ×ananassae1
Outcome
sustainable solutions for nematode managemente2

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“This research identified promising chitinolytic fungal strains from strawberry-growing soils”

✓ located verbatim in the source · abstract, characters 97–189 · show in text ↑
e2

“chitinolytic fungi can provide sustainable solutions for nematode management”

✓ located verbatim in the source · abstract, characters 1337–1413 · show in text ↑