GENETICAL EFFECTS OF USING SILICA NANOPARTICLES AS BIOPESTICIDE ON Drosophila melanogaster

Galal, Ola A.; El-Samahy, M.

doi:10.21608/ejgc.2012.10561

Cited by 10 publications

(6 citation statements)

References 25 publications

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“…The insecticidal properties of silica NPs are thought to be due to direct abrasion of the insect cuticle 8 – 10 or sorption through the cuticular layers 2 . Silica NPs may also have an indirect insecticidal effect on pests feeding on treated plants or food by blocking the digestive tract 11 and inducing malformation of external morphology (Thabet et al unpublished). Silica may also impair the digestive tract in insect herbivores that feed on silica-treated plants 12 .…”

Section: Introductionmentioning

confidence: 99%

“…At the base of these food chains, plants uptake silicon (Si, bulk size > 1 μm) from the soil, and their ability to do so varies according to different mechanisms of uptake 16 , 17 . Si absorbed and deposited in plant epidermal tissue (cell walls, lumen, intracellular space, and trichomes/hairs) 18 as amorphous hydrated silica (SiO 2 ·nH 2 O) can increase the rigidity of the tissue, causing increased wear to the mandibles of chewing insects 19 – 25 and modification of the mouthparts of dipteran larvae 11 , along with increased alleviation of environmental stress on plants 26 . Moreover, Si enrichment in plants biochemically defends against herbivores, by priming for jasmonate-mediated inducible defenses (with defense-related enzymes and proteins) 27 .…”

Section: Introductionmentioning

confidence: 99%

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Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Thabet

Boraei

Galal

et al. 2021

Sci Rep

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The agricultural use of silica (SiO2) nanoparticles (NPs) has the potential to control insect pests while the safety and tritrophic effects on plants and beneficial natural enemies remains unknown. Here, we evaluate the effects of silica NPs on insect pests with different feeding niches, natural enemies, and a plant. Silica NPs were applied at different concentrations (75–425 mg/L) on field-cultivated faba bean and soybean for two growing seasons. The faba bean pests, the cowpea aphid Aphis craccivora and the American serpentine leafminer Liriomyza trifolii, and the soybean pest, the cotton leafworm Spodoptera littoralis, were monitored along with their associated predators. Additional laboratory experiments were performed to test the effects of silica NPs on the growth of faba bean seedlings and to determine whether the rove beetle Paederus fuscipes is attracted to cotton leafworm-infested soybean treated with silica NPs. In the field experiments, silica NPs reduced the populations of all three insect pests and their associated predators, including rove beetles, as the concentration of silica NPs increased. In soybean fields, however, the total number of predators initially increased after applying the lowest concentration. An olfactometer-based choice test found that rove beetles were more likely to move towards an herbivore-infested plant treated with silica NPs than to a water-treated control, suggesting that silica NPs enhance the attraction of natural enemies via herbivore-induced plant volatiles. In the laboratory, while silica NPs inhibited the development of faba bean roots at 400 mg/L, they did not affect germination percentage, germination time, shoot length, or vigor index compared to the control.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Thabet

Boraei

Galal

et al. 2021

Sci Rep

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“…It caused a decrease in larval survival by 40% mortality at a minimum concentration of 15 mg. After 6 days of exposure, this mortality increased to 56.7, 86.7, and 96.7% at concentrations of 30, 60, and 90 mg, respectively (Table 2). The toxicity of MSNs was recorded previously against various insects (Mesbah et al 2017;Arumugam et al 2016;Ziaee and Ganji 2016; El-Samahy et al 2014;Vani and Brindhaa 2013;Barik et al 2012;Galal and El-samahy 2012;Rouhani et al 2012 andDebnath et al 2011).…”

Section: Insecticidal Activity Of Msns Cesns Eos and Silica Gel Again...mentioning

confidence: 90%

Cinnamon Oil Encapsulated with Silica Nanoparticles: Chemical Characterization and Evaluation of Insecticidal Activity Against the Rice Moth, Corcyra cephalonica

et al. 2023

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Cinnamon (Cinnamomum zeylanicum Blume) essential oil has vast potential as an antimicrobial but is limited by its volatility and rapid degradation. To decrease its volatility and prolong the efficacy of the biocide, cinnamon essential oil was encapsulated into mesoporous silica nanoparticles (MSNs). The characterization of MSNs and cinnamon oil encapsulated with silica nanoparticles (CESNs) was estimated. Additionally, their insecticidal activity against the rice moth Corcyra cephalonica (Stainton) larvae was evaluated. The MSN surface area decreased from 893.6 to 720 m2 g−1 and the pore volume also decreased from 0.824 to 0.7275 cc/g after loading with cinnamon oil. X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDX), and N2 sorption by Brunauer–Emmett–Teller (BET) confirmed the successful formation and evolution of the synthesized MSNs and CESN structures. The surface characteristics of MSNs and CESNs were analyzed by scanning and transmission electron microscopy. Compared with the sub-lethal activity values, the order of toxicity after 6 days of exposure was MSNs ˃ CESN ˃ cinnamon oil ˃ silica gel ˃ peppermint oil. The efficacy of CESNs gradually increases its toxicity more than MSN after the 9th day of exposure.

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“…Furthermore, when used as dust, they absorb water from insect cuticles and cause abrasion on the wax layer, eventually leading to death from desiccation [48][49][50] . D. melanogaster larvae exposed to silica NPs undergo adverse effects from gut membrane destabilization, mouthparts deformation, and oxidative stress 51,52 . However, note that the toxicity of silica NPs depends on many factors, including the preparation technique, functional groups on the particle surface, particle size, dosage, and target cells or organisms 53,54 .…”

Section: Discussionmentioning

confidence: 99%

Fluorescent silica nanoparticles as an internal marker in fruit flies and their effects on survivorship and fertility

Songvorawit

Phengphuang

Khongkhieo

2022

Sci Rep

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Tracking and differentiating small insects at the individual levels requires appropriate marking materials because of their small size. This study proposes and investigates the use of fluorescent silica nanoparticles (FSNPs) as an internal marker owing to their good optical properties and biocompatibility. FSNPs were prepared using the water-in-oil reverse microemulsion technique with Rubpy dye as a fluorophore. The obtained particles were spherical, monodispersed in nanosize and exhibited bright orange luminescence under ultraviolet (UV) light. Internal marking was accomplished in fruit flies (Drosophila melanogaster) through feeding. The result shows that the fruit flies exhibit bright luminescence in their abdomen when exposed to UV light. The marking persistence duration of FSNPs in the fruit fly bodies is longer than those of other fluorescent dyes. Fruit flies fed with FSNPs have a longer lifespan than those fed with Rubpy dye. There was no difference in fertility and negative geotaxis response among the treatment and control groups. These findings demonstrate that FSNPs can be used as an internal marker in fruit flies, and are possibly applied with other small insects with a translucent abdomen.

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GENETICAL EFFECTS OF USING SILICA NANOPARTICLES AS BIOPESTICIDE ON Drosophila melanogaster

Cited by 10 publications

References 25 publications

Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Cinnamon Oil Encapsulated with Silica Nanoparticles: Chemical Characterization and Evaluation of Insecticidal Activity Against the Rice Moth, Corcyra cephalonica

Fluorescent silica nanoparticles as an internal marker in fruit flies and their effects on survivorship and fertility

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