Chitosan nanocomposite as an effective carrier of potential herbicidal metabolites for noteworthy phytotoxic effect against major aquatic invasive weed water hyacinth (Eichhornia crassipes)

Namasivayam, S. Karthick Raja; Pandian, U. Karthika; Chava, Vani; Bharani, R. S. Arvind; Kavisri, M.; Moovendhan, Meivelu

doi:10.1016/j.ijbiomac.2022.11.272

Cited by 12 publications

(8 citation statements)

References 37 publications

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“…Research is underway on new technologies such as nanomaterials, in order to develop innovative formulations that meet these criteria. 5,79,100 Although metabolomics is an essential technology for the study of fungal secondary metabolites, identification and precise quantification of new fungal secondary metabolites remains a challenge. 75 To date, there is no database specific to phytotoxic fungal secondary metabolites, and the existing databases on natural products in general have limitations (Table 2) so that it is difficult to characterize the metabolites on the basis of chromatography and MS data.…”

Section: Discussionmentioning

confidence: 99%

“…In general, three successive extractions are carried out with the same volume of solvent. 56,68,[76][77][78][79] In some cases, several extractions are carried out using successively hexane, chloroform, ethyl acetate and butanol due to their increasing polarity, to explore the widest diversity of metabolites. 70,76,80,81 This strategy allows a finer characterization of the metabolites because each fraction can be analyzed.…”

Section: Extraction Methodsmentioning

confidence: 99%

“…Commonly used organic solvents include ethyl acetate, butanol, chloroform, and hexane, among others. In general, three successive extractions are carried out with the same volume of solvent 56,68,76–79 . In some cases, several extractions are carried out using successively hexane, chloroform, ethyl acetate and butanol due to their increasing polarity, to explore the widest diversity of metabolites 70,76,80,81 .…”

Section: Methodological Approaches Used To Discover Identify and Expl...mentioning

confidence: 99%

“…100 A chitosan nanocomposite and potential promising candidate for weed control in aquatic environments has been produced recently. 79 Studying the phytotoxicity of Allophoma oligotrophica against the invasive aquatic plant Eichhornia crassipes, the authors extracted and identified three metabolites with notable herbicidal activity (cyclotrisiloxane, furfural and hydroxymethylfurfural) and used them to manufacture the nanocomposite. The herbicidal power of the metabolites was markedly improved when they were formulated in the nanocompound (large necrosis from the first half hour post-inoculation) compared to when they were applied directly to the leaves (necrosis 48 h post-inoculation).…”

Section: Exploitation Of Metabolites Of Interest: Towards the Formula...mentioning

confidence: 99%

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Phytotoxic fungal secondary metabolites as herbicides

Bendejacq‐Seychelles,

Gibot‐Leclerc,

Guillemin

et al. 2023

Pest Management Science

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Among the alternatives to synthetic plant protection products, biocontrol appears as a promising method. This review reports on the diversity of fungal secondary metabolites phytotoxic to weeds and on the approach generally used to extract, characterize, identify and exploit them for weed management. The 183 phytotoxic fungal secondary metabolites discussed in this review fall into five main classes of molecules: 61 polyketides, 53 terpenoids, 36 nitrogenous metabolites, 18 phenols and phenolic acids, and 15 miscellaneous. They are mainly produced by the genera Drechslera, Fusarium and Alternaria. The phytotoxic effects, more often described by the symptoms they produce on plants than by their mode of action, range from inhibition of germination to inhibition of root and vegetative growth, including tissue and organ alterations. The biochemical characterization of fungal secondary metabolites requires expertise and tools to carry out fungal cultivation and metabolite extraction, phytotoxicity tests, purification and fractionation of the extracts, and chemical identification procedures. Phytotoxicity tests are mainly carried out under controlled laboratory conditions (not always on whole plants), while effectiveness against targeted weeds and environmental impacts must be assessed in greenhouses and open fields. These steps are necessary for the formulation of effective, environment‐friendly fungal secondary metabolites‐derived bioherbicides using new technologies such as nanomaterials.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 99%

Section: Extraction Methodsmentioning

confidence: 99%

Section: Methodological Approaches Used To Discover Identify and Expl...mentioning

confidence: 99%

Section: Exploitation Of Metabolites Of Interest: Towards the Formula...mentioning

confidence: 99%

See 2 more Smart Citations

Phytotoxic fungal secondary metabolites as herbicides

Bendejacq‐Seychelles,

Gibot‐Leclerc,

Guillemin

et al. 2023

Pest Management Science

View full text Add to dashboard Cite

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“…Various research analyses studied the impact of chitosan as an antimicrobial and antifungal agent and its potential to make edible films and coating solutions for diminishing the post-harvest losses of fruits and vegetables [190,[193][194][195][196][197]. Other potential applications of chitosan for the environment are as a plant growth regulator [198][199][200], a flocculating agent for dye and heavy metal reduction [201][202][203][204][205], a water purifier [206,207], and as a bioremediation agent [208][209][210]. Szyma ńska and Winnicka [211] reported the stability concern of chitosan as a biomaterial, referring to the degradation of chitosan during storage due to the breakdown of its functional group.…”

Section: Chitosanmentioning

confidence: 99%

Microbial Biopolymers: From Production to Environmental Applications—A Review

Sharma,

Tellili,

Kacem

et al. 2024

Applied Sciences

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Industrial evolution and agricultural expansion, explained by continuing population growth, have rendered enormous problems for the world throughout the past few decades, primarily because of waste generation. To reduce environmental impact and dependence on fossil fuels, scientists have explored replacing synthetic polymers with environmentally friendly and sustainable alternatives in many emergent applications. In this regard, microbial biopolymers have gained special attention. Many biopolymers originating from various strains of bacteria, fungi, and algae have been reported and their possible applications have increased rapidly. This review focuses on the wide range of microbial biopolymers, their characteristics, and factors influencing their production. The present study also describes the environmental applications of microbial biopolymers. The use of these biopolymers is very attractive as a value-added and sustainable approach to wastewater treatment. By acting as adsorbents, coagulants, and flocculants as well as filters in membrane processes, microbial biopolymers shine as promising solutions beyond conventional methods. They can be integrated into various stages of the treatment process, further enhancing the efficiency of wastewater treatment methods. Microbial biopolymer applications in bioremediation and soil stabilization are also reviewed. Several studies have demonstrated the strong potential of biopolymers in soil improvement due to their ability to minimize permeability, eliminate heavy metals, stabilize soil, and limit erosion. Challenges related to scaling up and the downstream processing of microbial biopolymers, as well as its future perspectives in environmental applications, are also discussed.

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