Abstract
Rhizoctonia solani Kuhn (AG 1-IA) is one of the most devastating pathogens of rice causing sheath blight disease and being a prime reason for the unsatisfactory productivity of rice in India. The goal of the present study was to investigate the efficacy of silver nanoparticles (AgNPs) synthesized using an agriculturally important bacterium, Pseudomonas fluorescens OKC, in managing the sheath blight disease of rice. Successful biosynthesis of AgNPs was monitored by UV-visible spectroscopy, showing a peak at 432 nm. The AgNPs were further characterized using a Transmission Electron Microscope (TEM), Dynamic Light Scattering (DLS) and Fourier Transform Infrared spectroscopy (FT-IR). The TEM result confirmed that the size of the synthesized nanoparticles was less than 100nm. DLS results revealed that the average particle size of the AgNPs was 74 nm and the zeta potential was -23.6 mV, indicating that the synthesized nanoparticles were of good stability at room temperature. The antifungal potential of AgNPs was tested against the test fungus in vitro and maximum growth inhibition was recorded in AgNPs treatment (69.09%) as compared to the control. Moreover, this result was further authenticated under net house conditions, where AgNPs successfully reduced the incidence of R.solani Kuhn. The findings showed that the biosynthesized AgNPs inhibited the growth of R. solani Kuhn and could be useful in the management of sheath blight disease in rice.
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Claims 6
Claim · model-written summary
Biosynthesized silver nanoparticles showed a UV-visible peak at 432 nm.
- Taxon
- rice
Oryza sativat0 - Outcome
- peake0
- Value
- 432 nme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Successful biosynthesis of AgNPs was monitored by UV-visible spectroscopy, showing a peak at 432 nm.”
t0“rice”
Claim · model-written summary
TEM showed nanoparticle size below 100nm.
- Taxon
- riceOryza sativat0
- Outcome
- size of the synthesized nanoparticlese0
- Value
- less than 100nme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The TEM result confirmed that the size of the synthesized nanoparticles was less than 100nm.”
t0“rice”
Claim · model-written summary
DLS showed mean nanoparticle size of 74 nm.
- Taxon
- riceOryza sativat0
- Outcome
- average particle size of the AgNPse0
- Value
- 74 nme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DLS results revealed that the average particle size of the AgNPs was 74 nm”
t0“rice”
Claim · model-written summary
The nanoparticles had a zeta potential of -23.6 mV.
- Taxon
- riceOryza sativat0
- Outcome
- zeta potentiale0
- Value
- -23.6 mVe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the zeta potential was -23.6 mV”
t0“rice”
Claim · model-written summary
AgNP treatment inhibited fungal growth by 69.09% relative to control in vitro.
- Taxon
- riceOryza sativat0
- Treatment
- AgNPs treatmente0
- Interactor
- R. solani Kuhn
Rhizoctonia solanit1pathogen - Outcome
- growth inhibitione0
- Direction
- maximume0
- Value
- 69.09%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum growth inhibition was recorded in AgNPs treatment (69.09%) as compared to the control.”
t0“rice”
t1“R. solani Kuhn”
Claim · model-written summary
AgNPs reduced R. solani incidence under net-house conditions.
- Taxon
- riceOryza sativat0
- Treatment
- AgNPse0
- Interactor
- R.solani KuhnRhizoctonia solanie0pathogen
- Outcome
- incidence of R.solani Kuhne0
- Direction
- reducede0
- Setting
- net house conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under net house conditions, where AgNPs successfully reduced the incidence of R.solani Kuhn.”
t0“rice”
The same questions in other papers
silver nanoparticle · Rhizoctonia solani · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.