Nano/microencapsulation of plant biocontrol agents by chitosan, alginate, and other important biopolymers as a novel strategy for alleviating plant biotic stresses

Riseh, Roohallah Saberi; Hassanisaadi, Mohadeseh; Vatankhah, Masoumeh; Soroush, Fatemeh; Varma, Rajender S.

doi:10.1016/j.ijbiomac.2022.09.278

Cited by 72 publications

(27 citation statements)

References 149 publications

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“…145 Currently, several matrixes are used for microbial microencapsulation. However, biopolymers such as alginate, Arabic gum, dextran, chitosan, gelatin, starch, whey protein, casein, soy protein, zein, and pectin have attracted interest for the microencapsulation of microorganisms for agricultural applications 158 because they are nontoxic, renewable, biologically biodegradable, and inexpensive. This approach has been widely explored for encapsulating plant growth-promoting rhizobacteria (PGPR) for their use as biostimulants or encapsulating other microorganisms as biocontrol tools for plant pathogens and diseases.…”

Section: Micro-/nanotechnology For Weed Controlmentioning

confidence: 99%

Nature-Based Herbicides and Micro-/Nanotechnology Fostering Sustainable Agriculture

Campos

Ratko

Bidyarani

et al. 2023

ACS Sustainable Chem. Eng.

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Bioherbicides, also known as nature-based herbicides, play a crucial role in sustainable agriculture by effectively inhibiting weed growth and development. They help increase crop productivity by reducing competition between plants for nutrients, water, and light. Their eco-friendly nature sets bioherbicides apart, promoting environmentally conscious farming practices. Despite their numerous benefits, many bioherbicide compounds are inherently unstable and susceptible to environmental degradation by temperature, light, humidity, and microbial activity, thus posing challenges for effective weed management. To address this issue, a growing emphasis has been placed on encapsulation strategies in recent years. Encapsulation techniques offer several advantages for bioherbicides, including enhanced efficacy, sustainable biological compound release, environmental factor protection, and shelf life improvement. Polymers, particularly biopolymers, are promising materials for bioherbicide encapsulation in micro-/nanoparticles. These particles are specifically designed for the targeted delivery of bioherbicides, ensuring effective crop protection and weed management. Micro-/nanotechnology incorporation in encapsulated formulation development has revealed their notable potential. This study focuses on the latest developments in the encapsulation of bioherbicides into micro-/nanoparticles and their practical application for weed management. By leveraging micro-/nanotechnology, researchers aim to maximize bioherbicidal application and efficacy, paving the way for sustainable agricultural weed management practices. The findings of this study may serve as a reference for expanding the use of micro-/nanotechnology-associated bioherbicides for providing potential sustainable weed control solutions.

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Section: Micro-/nanotechnology For Weed Controlmentioning

confidence: 99%

Nature-Based Herbicides and Micro-/Nanotechnology Fostering Sustainable Agriculture

Campos

Ratko

Bidyarani

et al. 2023

ACS Sustainable Chem. Eng.

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“…To achieve a goal of best possible results produced by biocontrol agents, great efforts should be made from several aspects, which may concern field trials to show their real efficacies in complicated environments, biocontrol strain modifications to enhance their biocontrol activities against Phytophthora infestans and improve their tolerance to environmental stresses, proper preservation of the biocontrol strains in reputable culture collections, appropriate registration processes of biological control agents, advanced formulating technologies to prolong their shelf-life and offer the controlled release of biological components, strict regulation during biocontrol agent production, scientific usage methods for the biocontrol agent application, and systematic evaluation of application effects in the field. [100][101][102][103][104] It is anticipated that an increasing amount of biocontrol agents will be commercialized for the management of Phytophthora infestans in the future. To strengthen the efficacy, combined biocontrol agents having different modes of action or biological adaptation traits may be used.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

A review of biocontrol agents in controlling late blight of potatoes and tomatoes caused by Phytophthora infestans and the underlying mechanisms

Wang

Long

2023

Pest Management Science

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Phytophthora infestans causes light blight on potatoes and tomatoes, which has a significant economic impact on agriculture. The management of late blight has been largely dependent on the application of synthetic fungicides, which is not ultimate solution for sustainable agriculture and environmental safety. Biocontrol strategies are expected to be alternative methods to the conventional chemicals in controlling plant diseases in the integrated pest management (IPM) programs. Well‐studied biocontrol agents against P. infestans include fungi, oomycetes, bacteria, and compounds produced by these antagonists, in addition to certain bioactive metabolites produced by plants. Laboratory and greenhouse experiments suggest a potential for using biocontrol in practical late blight disease management. However, the transition of biocontrol to field applications is problematic for the moment, due to low and variable efficacies. In this review, we provide a comprehensive summary on these biocontrol strategies and the underlying corresponding mechanisms. To give a more intuitive understanding of the promising biocontrol agents against P. infestans in agricultural systems, we discuss the utilizations, modes of action and future potentials of these antagonists based on their taxonomic classifications. To achieve a goal of best possible results produced by biocontrol agents, it is suggested to work on field trials, strain modifications, formulations, regulations, and optimizations of application. Combined biocontrol agents having different modes of action or biological adaptation traits may be used to strengthen the biocontrol efficacy. More importantly, biological control agents should be applied in the coordination of other existing and forthcoming methods in the IPM programs.This article is protected by copyright. All rights reserved.

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“…Encapsulation with alginate is used in some agrochemical formulations, especially to control the release of active ingredients [ 63 ], for example, to control the release of pesticides [ 64 , 65 ], herbicides [ 66 ], or fungicides [ 67 ]. Another use is the optimization of the fertilization process by encapsulating various fertilizers such as biochar [ 68 ] or biofertilizers [ 69 ].…”

Section: Encapsulation Polymersmentioning

confidence: 99%

Encapsulation with Natural Polymers to Improve the Properties of Biostimulants in Agriculture

Jiménez-Árias

Morales-Sierra

Silva

et al. 2022

Plants

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Encapsulation in agriculture today is practically focused on agrochemicals such as pesticides, herbicides, fungicides, or fertilizers to enhance the protective or nutritive aspects of the entrapped active ingredients. However, one of the most promising and environmentally friendly technologies, biostimulants, is hardly explored in this field. Encapsulation of biostimulants could indeed be an excellent means of counteracting the problems posed by their nature: they are easily biodegradable, and most of them run off through the soil, losing most of the compounds, thus becoming inaccessible to plants. In this respect, encapsulation seems to be a practical and profitable way to increase the stability and durability of biostimulants under field conditions. This review paper aims to provide researchers working on plant biostimulants with a quick overview of how to get started with encapsulation. Here we describe different techniques and offer protocols and suggestions for introduction to polymer science to improve the properties of biostimulants for future agricultural applications.

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Nano/microencapsulation of plant biocontrol agents by chitosan, alginate, and other important biopolymers as a novel strategy for alleviating plant biotic stresses

Cited by 72 publications

References 149 publications

Nature-Based Herbicides and Micro-/Nanotechnology Fostering Sustainable Agriculture

Nature-Based Herbicides and Micro-/Nanotechnology Fostering Sustainable Agriculture

A review of biocontrol agents in controlling late blight of potatoes and tomatoes caused by Phytophthora infestans and the underlying mechanisms

Encapsulation with Natural Polymers to Improve the Properties of Biostimulants in Agriculture

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