Synthesis and characterization of chitosan nanoparticles and their effect on Fusarium head blight and oxidative activity in wheat

Kheiri, A; ., S. Ali Moosawi-Jorf; Malihipour, Ali; Saremi, Hossein; Nikkhah, Maryam

doi:10.1016/j.ijbiomac.2017.04.034

Cited by 69 publications

(40 citation statements)

References 65 publications

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“…On the other hand, compounds 1 d and 1 f do not impair the morphology of F. keratoplasticum since no evident cellular damage or morphological modifications of tubular structures was noted when compared to the control. Same morphological damage in fungi cells was recently observed in related studies using SEM, after treating the strains with a variety of organic compounds or nanoparticles …”

Section: Resultssupporting

confidence: 76%

Allylic Selenocyanates as New Agents to Combat Fusarium Species Involved with Human Infections

et al. 2017

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Fusarium is an emerging opportunistic fungal pathogen that causes local or systemic infections. The successful use of a therapeutic drug or combination antifungal therapies against Fusarium spp. are compromised because reports of multidrug resistance are currently frequent. Thus, the development of new antifungal capable of combating multidrug‐resistant Fusarium strains becomes necessary. This study presents the synthesis of seven new allylic selenocyanates and their screening against Fusarium spp. Minimum inhibitory concentrations (MICs) of these compounds ranged from 4 to 64 μg mL−1, with the mechanism of action being related to fungal cell membrane disruption. Specific structural changes, such as widespread thinning along the hyphae, were observed by scanning electron microscopy. The effect of selenocyanates on cell viability and genotoxicity are concentration dependent, however they did not cause mutagenicity in human cells. Five selenocyanates were identified as nonirritant by the ex‐vivo HET‐CAM (Hen′s Egg Test‐Chorioallantoic Membrane) method. Allylic selenocyanates represents a promising alternative in the treatment and prevention of fusariosis.

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Section: Resultssupporting

confidence: 76%

Allylic Selenocyanates as New Agents to Combat Fusarium Species Involved with Human Infections

et al. 2017

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“…It has been predicted that chitosan (CS) and chitosan nanoparticles (CS/NPs) could be used as antimicrobial agents against F. graminearum and as a substitute for synthetic fungicides owing to their antimicrobial activity, biocompatibility and lower harmfulness toward mammalian cells (Kheiri et al ., ).…”

Section: Biological Control Strategiesmentioning

confidence: 97%

Integrated control of fusarium head blight and deoxynivalenol mycotoxin in wheat

et al. 2017

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Fusarium head blight (FHB), a devastating disease that affects wheat, is caused by a complex of Fusarium species. The overall impact of Fusarium spp. in wheat production arises through the combination of FHB and mycotoxin infection of the grain harvested from infected wheat spikes. Spike infection occurs during opening of flowers and is favoured by high humidity or wet weather accompanied with warm temperatures. Available possibilities for controlling FHB include the use of cultural practices, fungicides and biological approaches. Three cultural practices are expected to be of prime importance in controlling FHB and the production of mycotoxins: soil preparation method (deep tillage), the choice of the preceding crop in the rotation and the selection of appropriate cultivar.

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“…Their inhibitory effect on C. gloeosporioides follows the trend: chitosan nanoparticles-methanol nanche extract (79.6%) > CSNps (57.0%) > BCS (9.4%). In another work, Kheiri et al employed three different molecular weights (MW) of chitosan (i.e., low MW of 161 kDa, medium MW of 300 kDa, and high MW of 810 kDa) for the formation of nanoparticulate systems [45]. The resulting nanoparticles exhibit lower zeta potential and a bigger average size with the increase of the molecular weight and thus, subsequently, resulted in lower antifungal activity on Fusarium graminearum (in vitro).…”

Section: Biocides Against Plant Pathogens and Pestsmentioning

confidence: 99%

Chitosan-Based Agronanochemicals as a Sustainable Alternative in Crop Protection

Maluin

2020

Molecules

160

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The rise in the World’s food demand in line with the increase of the global population has resulted in calls for more research on the production of sustainable food and sustainable agriculture. A natural biopolymer, chitosan, coupled with nanotechnology could offer a sustainable alternative to the use of conventional agrochemicals towards a safer agriculture industry. Here, we review the potential of chitosan-based agronanochemicals as a sustainable alternative in crop protection against pests, diseases as well as plant growth promoters. Such effort offers better alternatives: (1) the existing agricultural active ingredients can be encapsulated into chitosan nanocarriers for the formation of potent biocides against plant pathogens and pests; (2) the controlled release properties and high bioavailability of the nanoformulations help in minimizing the wastage and leaching of the agrochemicals’ active ingredients; (3) the small size, in the nanometer regime, enhances the penetration on the plant cell wall and cuticle, which in turn increases the argochemical uptake; (4) the encapsulation of agrochemicals in chitosan nanocarriers shields the toxic effect of the free agrochemicals on the plant, cells and DNA, thus, minimizing the negative impacts of agrochemical active ingredients on human health and environmental wellness. In addition, this article also briefly reviews the mechanism of action of chitosan against pathogens and the elicitations of plant immunity and defense response activities of chitosan-treated plants.

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Synthesis and characterization of chitosan nanoparticles and their effect on Fusarium head blight and oxidative activity in wheat

Cited by 69 publications

References 65 publications

Allylic Selenocyanates as New Agents to Combat Fusarium Species Involved with Human Infections

Allylic Selenocyanates as New Agents to Combat Fusarium Species Involved with Human Infections

Integrated control of fusarium head blight and deoxynivalenol mycotoxin in wheat

Chitosan-Based Agronanochemicals as a Sustainable Alternative in Crop Protection

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