Chitosan-Based Nanostructures in Plant Protection Applications

Al-Dhabaan, Fahad A.; Mostafa, Manal; Almoammar, Hassan; Abd‐Elsalam, Kamel A.

doi:10.1007/978-3-319-91161-8_13

Cited by 14 publications

(9 citation statements)

References 162 publications

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“…Its worthy to mention that inoculating plants with AMF was not efficient enough for improving the plant growth when associated with the highest application rate (1500 mg N L -1 ) of nano-chitosan-urea. This is probably because nanochitosan induces both local and systemic plant defense responses (Al-Dhabaan et al, 2018); hence acted as a fungicide (Saharan and Pal, 2016; de Oliveira and Junior, 2020). Accordingly, plant inoculation with AMF did not affect significantly the growth and the outcome yield of plants that received the highest application rate of nano-chitosan-urea.…”

Section: Discussionmentioning

confidence: 99%

Foliar Applications of Nano Chitosan-Urea and Inoculation with Mycorrhiza on Kohlrabi (Brassica oleracea Var. Gongylodes, L.)

Shams

2019

Journal of Plant Production

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The current research aims at producing high kohlrabi knob yield with better quality traits using nanochitosan-urea (versus urea) as a foliar spray in presence of mycorrhiza (AMF) as plant inoculants either solely or in combinations with each other. This investigation was carried out under the field conditions for two successive seasons (2015/2016 and 2016/2017). In this concern, microrrhizal inoculations were set up in the main plots whereas the foliar application of nano-urea was arranged in the sub-plots, comprising 5 treatments, i.e. spray with water, spray with ordinary urea at a rate of 1500 mg N L-1 , spray with nano-urea at rates of 500 mg N L-1 , 1000 mg N L-1 , and 1500 mg N L-1 (designated U0, U1, U2, U3, and U4 respectively). Generally, spraying kohlrabi plants with different urea forms increased significantly the studied vegetative growth parameters as well as the yield quantity and quality traits in the following order U4>U1=U3>U2>U0. Likewise inoculating plants with AMF improved significantly the investigated growth parameters and yield components. It seems that inoculating plants with AMF did not affect significantly the above-mentioned growth parameters and yield components when plants sprayed with nano-chitosan-urea at a rate of 1500 mg N L-1. Thus, spraying plants with 1000 mg N L-1 as nano chitosan-urea together with plant inoculation with AMF (U3M1) is the recommended solution to cut off the inputs of chemical N fertilizers by 33.3% as this integrated treatments recorded comparable results with the ones attained for the application of the full dose of urea.

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Section: Discussionmentioning

confidence: 99%

Foliar Applications of Nano Chitosan-Urea and Inoculation with Mycorrhiza on Kohlrabi (Brassica oleracea Var. Gongylodes, L.)

Shams

2019

Journal of Plant Production

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“…Chitosan (CH), produced from the polysaccharide chitin, has many benefits as an ecofriendly polymer in agricultural, biomedical, and fodder production [12,21,22]. CH-NPs are used for many purposes due to their high permeability, eco-friendliness, safety for living organisms, low price, and high solubility and biodegradability [23].…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of Chitosan Nanoparticles in the Regulation of Cold Stress Resistance in Banana Plants

Wang

AL‐Huqail

et al. 2021

Nanomaterials

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Exposure of banana plants, one of the most important tropical and subtropical plants, to low temperatures causes a severe drop in productivity, as they are sensitive to cold and do not have a strong defense system against chilling. Therefore, this study aimed to improve the growth and resistance to cold stress of banana plants using foliar treatments of chitosan nanoparticles (CH-NPs). CH-NPs produced by nanotechnology have been used to enhance tolerance and plant growth under different abiotic stresses, e.g., salinity and drought; however, there is little information available about their effects on banana plants under cold stress. In this study, banana plants were sprayed with four concentrations of CH-NPs—i.e., 0, 100, 200, and 400 mg L−1 of deionized water—and a group that had not been cold stressed or undergone CH-NP treatment was used as control. Banana plants (Musa acuminata var. Baxi) were grown in a growth chamber and exposed to cold stress (5 °C for 72 h). Foliar application of CH-NPs caused significant increases (p < 0.05) in most of the growth parameters and in the nutrient content of the banana plants. Spraying banana plants with CH-NPs (400 mg L−1) increased the fresh and dry weights by 14 and 41%, respectively, compared to the control. A positive correlation was found between the foliar application of CH-NPs, on the one hand, and photosynthesis pigments and antioxidant enzyme activities on the other. Spraying banana plants with CH-NPs decreased malondialdehyde (MDA) and reactive oxygen species (ROS), i.e., hydrogen peroxide (H2O2), hydroxyl radicals (•OH), and superoxide anions (O2•−). CH-NPs (400 mg L−1) decreased MDA, H2O2, •OH, and O2•− by 33, 33, 40, and 48%, respectively, compared to the unsprayed plants. We hypothesize that CH-NPs increase the efficiency of banana plants in the face of cold stress by reducing the accumulation of reactive oxygen species and, in consequence, the degree of oxidative stress. The accumulation of osmoprotectants (soluble carbohydrates, proline, and amino acids) contributed to enhancing the cold stress tolerance in the banana plants. Foliar application of CH-NPs can be used as a sustainable and economically feasible approach to achieving cold stress tolerance.

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“…The procedure is more viable than the free hormone during bioactivity assays, encouraging germination in less than 24 h and expanding leaf area and root development (containing lateral roots material) (Campos et al 2015). Latest advancements in pesticide delivery, depending on chitosan-containing solutions of microcapsules (identified or not with elements), copolymeric concentration, and nanomicellar, are the most attractive for both pesticide formulations (Al-Dhabaan et al 2018).…”

Section: Chitosan and Plant Growth Regulatorsmentioning

confidence: 99%

Chitosan in modern agriculture production

Ma¹,

Chai²

2021

Plant Soil Environ.

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In the perspective of return to nature, using scientific and technical progress for improved living standards, people began to search for solutions to alleviate environmental pollution. Researchers intend to make clean, affordable products that are gentle yet effective. Chitosan derived from the exoskeleton of crustaceans, cuticles of insects, cell walls of fungi, and some algae are renowned for many decades to exhibit biotic properties, especially anti-microbial characteristics. Here we review each ingredient for sourcing organic chitosan, with clean raw materials that can make pure, rich, and powerful products working naturally. Our study elaborates advances and utilisation of chitosan for industrial control-release fertilisers by physical, chemical, and multifaceted formulations such as water-retaining super absorbent, polyacrylic acid, and resins. Plant growth-promoting properties of chitosan as a growth regulator, pest/disease resistance, signalling regulation, effect on nuclear deformation, and apoptosis. Chitosan can improve the plant defence mechanism by stimulating photochemistry and enzymes related to photosynthesis. Furthermore, electrophysiological modification induced by chitosan can practically enable it to be utilised as a herbicide. Chitosan has an excellent role in improving soil fertility and plant growth as well as plant growth promoters. It is concluded, chitosan can play a key role in modern agriculture production and could be a valuable source promoting agricultural ecosystem sustainability. Future suggestions will be based on current achievements and also notable gaps. In addition, chitosan has a huge contribution to reducing fertilisers pollution, managing agricultural pests and pathogens in modern-day agriculture.

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Chitosan-Based Nanostructures in Plant Protection Applications

Cited by 14 publications

References 162 publications

Foliar Applications of Nano Chitosan-Urea and Inoculation with Mycorrhiza on Kohlrabi (Brassica oleracea Var. Gongylodes, L.)

Foliar Applications of Nano Chitosan-Urea and Inoculation with Mycorrhiza on Kohlrabi (Brassica oleracea Var. Gongylodes, L.)

Mechanisms of Chitosan Nanoparticles in the Regulation of Cold Stress Resistance in Banana Plants

Chitosan in modern agriculture production

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