Abstract
AIMS: In this study, the antifungal efficacy and phytotoxicity of silica coated porous zinc oxide nanoparticle (SZNP) were analyzed as this nanocomposite was observed to be a suitable platform for slow release fungicides and has the promise to bring down the dosage of other agrochemicals as well. METHODS AND RESULTS: Loading and release kinetics of tricyclazole, a potent fungicide, were analyzed by measuring surface area (SBET) using Brunauer-Emmett-Teller (BET) isotherm and liquid chromatography tandem mass spectrometry (LC-MS/MS), respectively. The antifungal efficacy of ZnO nanoparticle (ZNP) and SZNP was investigated on two phytopathogenic fungi (Alternaria solani and Aspergillus niger). The morphological changes to the fungal structure due to ZNP and SZNP treatment were studied by field emission-scanning electron microscopy. Nanoparticle mediated elevation of reactive oxygen species (ROS) in fungal samples was detected by analyzing the levels of superoxide dismutase, catalase, thiol content, lipid peroxidation, and by 2,7-dichlorofluorescin diacetate assay. The phytotoxicity of these two nanostructures was assessed in rice plants by measuring primary plant growth parameters. Further, the translocation of the nanocomposite in the same plant model system was examined by checking the presence of fluorescein isothiocyanate tagged SZNP within the plant tissue. CONCLUSIONS: ZNP had superior antifungal efficacy than SZNP and caused the generation of more ROS in the fungal samples. Even then, SZNP was preferred as an agrochemical delivery vehicle because, unlike ZNP alone, it was not toxic to plant system. Moreover, as silica in nanoform is entomotoxic in nature and nano ZnO has antifungal property, both the cargo (agrochemical) and the carrier system (silica coated porous nano zinc oxide) will have a synergistic effect in crop protection.
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 5
Claim · model-written summary
ZNP had greater antifungal efficacy than SZNP.
- Taxon
- rice plants
Oryza sativae1 - Treatment
- ZNPe0
- Outcome
- antifungal efficacye0
- Direction
- superiore0
- Comparator
- SZNPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ZNP had superior antifungal efficacy than SZNP and caused the generation of more ROS in the fungal samples.”
e1“phytotoxicity of these two nanostructures was assessed in rice plants”
Claim · model-written summary
ZNP caused more fungal ROS than SZNP.
- Taxon
- rice plantsOryza sativae1
- Treatment
- ZNPe0
- Outcome
- ROS in the fungal samplese0
- Direction
- moree0
- Comparator
- SZNPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ZNP had superior antifungal efficacy than SZNP and caused the generation of more ROS in the fungal samples.”
e1“phytotoxicity of these two nanostructures was assessed in rice plants”
Claim · model-written summary
SZNP was not toxic to the plant system, unlike ZNP.
- Taxon
- rice plantsOryza sativae1
- Treatment
- SZNPe2
- Outcome
- toxic to plant systeme0
- Direction
- not toxice0
- Comparator
- ZNP alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“unlike ZNP alone, it was not toxic to plant system.”
e1“phytotoxicity of these two nanostructures was assessed in rice plants”
e2“SZNP was preferred as an agrochemical delivery vehicle”
Claim · model-written summary
The authors preferred SZNP as an agrochemical carrier.
- Taxon
- rice plantsOryza sativae1
- Outcome
- agrochemical delivery vehiclee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SZNP was preferred as an agrochemical delivery vehicle because, unlike ZNP alone, it was not toxic to plant system.”
e1“phytotoxicity of these two nanostructures was assessed in rice plants”
Claim · model-written summary
The authors projected synergistic crop protection from agrochemical cargo and silica-coated zinc oxide carrier.
- Taxon
- rice plantsOryza sativae1
- Outcome
- synergistic effect in crop protectione0
- Qualifier
- both the cargo (agrochemical) and the carrier system (silica coated porous nano zinc oxide)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both the cargo (agrochemical) and the carrier system (silica coated porous nano zinc oxide) will have a synergistic effect in crop protection.”
e1“phytotoxicity of these two nanostructures was assessed in rice plants”
The same questions in other papers
zinc oxide · control · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
zinc oxide · physiology: oxidative · Oryza sativa (rice)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →nanoparticle · physiology: oxidative · Oryza sativa (rice)Positive and negative results
23 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
25 papers more in this group
See all 29 papers →nanoparticle · control · Oryza sativa (rice)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.