Abstract
Root knot nematode, Meloidogyne spp. causes severe yield losses in vegetable crops. Chitosan is one of the most abundant biopolymer available worldwide next to cellulose. It is known to have anti-nemic, anti-fungal and anti- bacterial properties. Application of chitosan induces systemic resistance in tomato plants against pathogens by increasing phenolic content and antioxidant enzymes viz., Polyphenol oxidase, Superoxide dismutase and phytoalexins. A study was conducted to study the phenol content and activity of antioxidant enzymes, polyphenol oxidase and peroxidase activities in root knot nematode infected tomato plants treated with chiotsan nanoparticles. The antioxidant enzymatic activities were recorded after 25th day of nematode inoculation. It was observed that the phenolic content increased due to the application of chitosan nanoparticle in nematode infected plants (174.32 µg/g of root) compared to 160.37 µg/g of root in untreated plants. Similarly the peroxidase and polyphenol oxidase activity also increased in chitosan nanoparticle treated nematode infected plants. The study revealed that chitosan nano particles protect plants from root knot nematode infection by increasing the phenol content, peroxidase and polyphenol oxidase activity and induce systemic resistance against nemayodes.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 4
Claim · model-written summary
Chitosan nanoparticles increased phenolic content in infected tomato roots to 174.32 µg/g, versus 160.37 µg/g untreated.
- Taxon
- tomato plants
Solanum lycopersicumt0 - Treatment
- application of chitosan nanoparticlee0
- Interactor
- root knot nematode
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynet0pest - Outcome
- phenolic contente0
- Direction
- increasede0
- Value
- 174.32 µg/g of roote0
- Qualifier
- 160.37 µg/g of roote0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
t0“root knot nematode, Meloidogyne incognita infected tomato plants treated with chitosan nanoparticles”
e0“the phenolic content increased due to the application of chitosan nanoparticle in nematode infected plants (174.32 µg/g of root) compared to 160.37 µg/g of root in untreated plants”
Claim · model-written summary
Chitosan nanoparticles increased peroxidase activity in nematode infected tomato plants.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- chitosan nanoparticlee0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- peroxidasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“root knot nematode, Meloidogyne incognita infected tomato plants treated with chitosan nanoparticles”
e0“the peroxidase and polyphenol oxidase activity also increased in chitosan nanoparticle treated nematode infected plants”
Claim · model-written summary
Chitosan nanoparticles increased polyphenol oxidase activity in nematode infected tomato plants.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- chitosan nanoparticlee0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- polyphenol oxidase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“root knot nematode, Meloidogyne incognita infected tomato plants treated with chitosan nanoparticles”
e0“the peroxidase and polyphenol oxidase activity also increased in chitosan nanoparticle treated nematode infected plants”
Claim · model-written summary
The authors infer that chitosan nanoparticles protect infected tomato plants through higher phenols and enzyme activity, inducing systemic resistance.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- chitosan nano particlese0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- protect plants from root knot nematode infectione0
- Qualifier
- increasing the phenol content, peroxidase and polyphenol oxidase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“root knot nematode, Meloidogyne incognita infected tomato plants treated with chitosan nanoparticles”
e0“chitosan nano particles protect plants from root knot nematode infection by increasing the phenol content, peroxidase and polyphenol oxidase activity and induce systemic resistance against nemayodes”
The same questions in other papers
chitosan · Meloidogyne · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
chitosan · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →nanoparticle · Meloidogyne · Solanum lycopersicum (tomato)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →nanoparticle · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree
16 papers in the same direction as this paper
- positive
- positive
- positive
13 papers more in this group
See all 17 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.