Encapsulation of Bacterial Metabolic Infiltrates Isolated from Different <i>Bacillus</i> Strains in Chitosan Nanoparticles as Potential Green Chemistry-Based Biocontrol Agents against <i>Radopholus similis</i>

Ureña-Saborío, Hilary; Madrigal‐Carballo, Sergio; Sandoval, Jorge; Vega-Baudrit, José; Rodríguez-Morales, Alejandro

doi:10.7569/jrm.2017.634119

Cited by 12 publications

(4 citation statements)

References 15 publications

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“…However, some works are found in the literature. Urena-Saboŕio et al 82 prepared chitosan/TPP nanoparticles containing bacterial metabolic infiltrates (BMIs) from Bt strain SER-217. The chitosan nanoparticles were effective for carrying Bt-derived BMI, with encapsulation efficiency greater than 90%.…”

Section: Encapsulation Strategies For Bmentioning

confidence: 99%

Encapsulation Strategies forBacillus thuringiensis: From Now to the Future

Oliveira

Fraceto

Bravo

et al. 2021

J. Agric. Food Chem.

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Bacillus thuringiensis (Bt) has been recognized for its high potential in the control of various agricultural pests. Developments in micro/nanotechnology have opened new perspectives for the production of more efficient formulations that can overcome some obstacles associated with its use in the field, such as formulation instability and loss of activity as a result of the degradation of pesticidal protein by its exposure to ultraviolet radiation, among other problems. This review describes current studies and recent discoveries related to Bt and processes for the encapsulation of Bt derivatives, such as Cry pesticidal proteins. Different techniques are described, such as extrusion, emulsion, spray drying, spray cooling, fluidized bed, lyophilization, coacervation, and electrospraying to obtain micro- and nanoparticulate systems. It is noteworthy that products based on microorganisms present less risk to the environment and non-target organisms. However, systematic risk assessment studies of these new Bt biopesticides are necessary, considering issues, such as interactions with other organisms, the formation of toxic secondary metabolites, or the interspecific transfer of genetic material. Given the great potential of these new formulations, a critical assessment is provided for their future use, considering the technological challenges that must be overcome to achieve their large-scale production for efficient agricultural use.

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Section: Encapsulation Strategies For Bmentioning

confidence: 99%

Encapsulation Strategies forBacillus thuringiensis: From Now to the Future

Oliveira

Fraceto

Bravo

et al. 2021

J. Agric. Food Chem.

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“…Encapsulating chitosan-microbes (chitosan-ATCC393 and chitosan-139S1) can protect against several environmental challenges (Li et al, 2011;Vejan et al, 2019). Moreover, the Harpinpss-chitosan, BMI-chitosan, B. thuringiensis-chitosan, B. cereus-chitosan, E. fergusonii-chitosan, B. thuringiensis-chitosan, and Pseudomonas-chitosan encapsulations tested on tomato, soybean, cotton, tobacco, bean, corn, and Hyaloptera peroni plants showed a reduction in egg-laying in female insects, thereby reducing the population and insect damage (Badawy and El-Aswad, 2012;Zeng et al, 2012;Chandrashekharaiah et al, 2015;Sahab et al, 2015;Badawy and Rabea, 2016;Kitherian, 2017;Ureña Saborío et al, 2017;Nadendla et al, 2018;De Oliveira et al, 2021). Based on the aforementioned findings, RNAi molecules expressed in microbes that can be encapsulated with chitosan are a viable technology and can be used as RNAibiopesticides in forest pest management (Figure 1).…”

Section: Chitosan Encapsulated Microbes: New Hope Against Forest Inse...mentioning

confidence: 99%

“…Chitin is the second-most common natural polymer after cellulose and is obtained mainly from shrimps, crabs, lobsters, and crawfish by-products (Figure 1; Faqir et al, 2021). Chitin is a linear, poly-(1,4)-N-acetyl-D glucosamine that appears in nature as organized crystalline microfibrils called α-chitin, β-chitin, and γ-chitin (Vani and Stanley, 2013). Chitosan is a partly deacetylated polymer of N-acetyl glucosamine produced by the alkaline deacetylation of chitin (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

RNAi-chitosan biopesticides for managing forest insect pests: an outlook

Mogilicherla,

Roy

2023

Front. For. Glob. Change

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The expanding world population demands superior forest protection to fulfil feasible environmental certainty. The persistent pest infestations negatively influence forest health and cause substantial economic losses. In contrast, the traditional use of conventional pesticides results in a loss of soil microbial biodiversity, a drop in the population of pollinators, and adverse effects on other non-target organisms, including humans. Global forestry is looking for solutions to reduce the adverse environmental effects of current chemical pesticides. RNAi-nanotechnology has recently drawn much attention for its use in pest management. The advantages of engineered RNAi-chitosan nano-formulations in terms of simple digestion and dissolution, non-toxicity, high adsorption power, potential biodegradation in nature, and widespread availability and cost-effectiveness, have been well documented for pest management in agroecosystems. However, deploying such control strategies in forest ecosystems is still pending and demands further research. Hence, we highlight the putative uses of RNAi-chitosan biopesticides and their preparation, characterization, and putative application methods for forest pest management. We also discussed potential environmental risks and plausible mitigation strategies.

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“…Chitosan also increases antimicrobial properties, promotes soil remediation, and activates defense mechanisms in plants growing in field conditions; (2) Promotion of plant growth; (3) Conditioning of the soil, by preventing the leaching of anionic nutrient fertilizers, such as phosphates and nitrates, also by stimulating the activity of beneficial microorganisms and enhancing the water retention properties of the soil [ 119 ]. Some authors reported the use of chitosan as a carrier for PGPB to obtain novel biofertilizers [ 120 , 121 , 122 , 123 ] or biopesticides [ 123 , 124 ], with very promising results.…”

Section: Biopolymeric Matrices As Carriers For Pgpbmentioning

confidence: 99%

Perspectives on the Use of Biopolymeric Matrices as Carriers for Plant-Growth Promoting Bacteria in Agricultural Systems

et al. 2023

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The subject of this review is to discuss some aspects related to the use of biopolymeric matrices as carriers for plant-growth promoting bacteria (PGPB) in agricultural systems as a possible technological solution for the establishment of agricultural production practices that result in fewer adverse impacts on the environment, reporting some promising and interesting results on the topic. Results from the encapsulation of different PGPB on alginate, starch, chitosan, and gelatin matrices are discussed, systematizing some advances made in this area of knowledge in recent years. Encapsulation of these bacteria has been shown to be an effective method for protecting them from unsuitable environments, and these new products that can act as biofertilizers and biopesticides play an important role in the establishment of a sustainable and modern agriculture. These new products are technological solutions for replacing deleterious chemical fertilizers and pesticides, maintaining soil fertility and stability, and improving crop productivity and food security. Finally, in the near future, scale-up studies will have to provide new information about the large-scale production of these materials as well as their application in the field under different biotic and abiotic stress conditions.

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Encapsulation of Bacterial Metabolic Infiltrates Isolated from Different Bacillus Strains in Chitosan Nanoparticles as Potential Green Chemistry-Based Biocontrol Agents against Radopholus similis

Cited by 12 publications

References 15 publications

Encapsulation Strategies forBacillus thuringiensis: From Now to the Future

Encapsulation Strategies forBacillus thuringiensis: From Now to the Future

RNAi-chitosan biopesticides for managing forest insect pests: an outlook

Perspectives on the Use of Biopolymeric Matrices as Carriers for Plant-Growth Promoting Bacteria in Agricultural Systems

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