Improvement of salicylic acid biological effect through its encapsulation with silica or chitosan

Sampedro-Guerrero, Jimmy; Vives‐Peris, Vicente; Gómez-Cádenas, Aurelio; Clausell-Terol, Carolina

doi:10.1016/j.ijbiomac.2021.12.124

Cited by 16 publications

(13 citation statements)

References 54 publications

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“…47 Moreover, nano-chitosan carriers can protect SA from the interference of external environments, and thus in turn increased the SA accumulation in plant leaves. 13 In addition, we also found that the SCN100 treatment remarkably increased the maize leaf JA content by 541.9% and 19.1% in the presence and absence of S. frugiperda , respectively (Fig. 5b), which may be due to the up-regulation of genes related to the JA biosynthesis pathway.…”

Section: Resultsmentioning

confidence: 60%

“…12 However, salicylic acid would be unstable and easily decomposed when exposed to intense light and significant temperature changes, which reduces its bioactivity and activation effect on plant defense against stress. 13 Therefore, the stable and continuous release of SA in plants is essential to maximize the induction of the SA-dependent resistance. 14 Notably, nanocarrier-based delivery systems can be used to increase the safety and efficacy of active ingredients in agricultural applications, particularly when the ingredients exhibit instability in external environments.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chitosan nanocarriers loaded with salicylic acid for controlling fall armyworm (Spodoptera frugiperda) and alleviating oxidative stress in maize plants

Wang,

Tao,

et al. 2023

Environ. Sci.: Nano

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Section: Resultsmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chitosan nanocarriers loaded with salicylic acid for controlling fall armyworm (Spodoptera frugiperda) and alleviating oxidative stress in maize plants

Wang,

Tao,

et al. 2023

Environ. Sci.: Nano

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“…The images clearly indicated that the encapsulation process was successful, with the water phase being effectively covered by silica nanoparticles (Figure ). A similar trend was noted in a study conducted by Sampedro-Guerrero et al, where they visualized silica encapsulation of salicylic acid used for controlling necrotrophic and biotrophic fungi.…”

Section: Resultsmentioning

confidence: 99%

Harnessing Nanoencapsulated Bacillus spp. Consortia To Combat Groundnut Bud Necrosis Orthotospovirus in Tomato

Kishorkumar,

Harish,

Karthikeyan

et al. 2024

ACS Appl. Mater. Interfaces

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Tomato (Solanum lycopersicum L.), a globally significant vegetable crop, faces a substantial threat from viral diseases, specifically Groundnut bud necrosis orthotospovirus (GBNV). Traditional approaches such as removal of infected plants, use of barrier crops, and insecticides have been employed but they have not proven to be consistently effective. Consequently, an alternative approach involving the stimulation of host resistance through the Plant Growth Promoting Rhizobacteria (PGPR) was adopted. From the previous study, B. subtilis (BST8), B. subtilis (Bbv57), and B. amyloliquefaciens (Ka1) were found to be effective against GBNV in cowpea. To enhance the shelf life of Bacillus spp. and improve the water retention capacity of tomato leaf surfaces, these bacteria were encapsulated within nanosilica, an identified host defense inducer. An effective inverse Pickering emulsion with a 2.5% (w/v) silica concentration was developed and characterized using diverse techniques, viz., phase contrast, scanning electron microscopy, confocal microscopy, contact angle goniometry, and variable angle ellipsometry. The prepared emulsion was then tested for its antiviral efficacy against GBNV in cowpea and tomatoes. Nanoencapsulated Bacillus consortia significantly reduced GBNV lesions in cowpea to 0.63 per leaf compared to the control (6.63). DAC-ELISA revealed a virus titer of 0.75 (3.33 times lower than the control), indicating antiviral efficacy. In tomato (var. PKM1), the consortia achieved an impressive 77.91% disease reduction (19% DSI) at 14 days post-inoculation (DPI), surpassing both nanoemulsion and consortia alone (DSIs: 67 and 30%, respectively). Nanoencapsulated Bacillus consortia demonstrated the lowest GBNV titer in tomatoes (0.86 vs control-3.32) through DAC-ELISA. This study introduces a promising strategy for the effective management of GBNV in cowpea and tomatoes using nanoencapsulated Bacillus consortia, underscoring its potential as an effective solution in crop protection.

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“…The capacity of adsorption of these green silica materials has been reported as similar to the adsorption capacity of conventional mesoporous silica obtained from TEOS. These reports show the possible use of more economic precursors in the syntheses of mesoporous silica materials In these route syntheses, the Si (OH)4 is the silica precursor material and is produced by the acid-adjusted pH in the silicate solution or by ion exchange resin [7][8][9][10][11][12][13][14][15][16][17][18]. The silica obtained from ion exchange resin allows the best biomolecule (enzyme) encapsulation and offers biomolecule protection because in the material syntheses could be not used acid or base catalyst, avoiding the denaturation of the biomolecule and best activity biologic.…”

Section: Introductionmentioning

confidence: 99%

Effect of silicic acid concentration on green mesoporous silica synthesis

Salazar-Hernández¹,

Salazar-Hernández²,

ELORZA-RODRÍGUEZ³

et al. 2022

JEA

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Tetraethoxysilane is the most commonly used precursor for obtaining mesoporous silica, it is economically expensive, so the use of inexpensive precursors such as sodium silicate or silicic acid are of interest for the economic production of said materials; silicic acid is generally obtained from sodium silicate by adjusting the pH of the system to 3-4 or through the use of ion exchange resins, this second methodology allows to eliminate the use of acid or basic catalysts in the synthesis of materials, which potentiates these materials for bioparticle encapsulation applications. The effect of the poly-condensation of silicic acid in obtaining mesoporous silica has been little evaluated, so this work shows the study of the effect of the degree of polycondensation of silicic acid on the textural properties of the materials, observing that at 0 and After 48 h of Si(OH)4 aging, the synthesized materials show a bimodal distribution of their pores at 4 and 8 nm, observing the majority presence of pores at 4 nm at 6, 24 and 72 h of aging.

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Improvement of salicylic acid biological effect through its encapsulation with silica or chitosan

Cited by 16 publications

References 54 publications

Chitosan nanocarriers loaded with salicylic acid for controlling fall armyworm (Spodoptera frugiperda) and alleviating oxidative stress in maize plants

Chitosan nanocarriers loaded with salicylic acid for controlling fall armyworm (Spodoptera frugiperda) and alleviating oxidative stress in maize plants

Harnessing Nanoencapsulated Bacillus spp. Consortia To Combat Groundnut Bud Necrosis Orthotospovirus in Tomato

Effect of silicic acid concentration on green mesoporous silica synthesis

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