Fungus- (Alternaria sp.) Mediated Silver Nanoparticles Synthesis, Characterization, and Screening of Antifungal Activity against Some Phytopathogens

Win, Theint Theint; Khan, Sikandar; Fu, Pengcheng

doi:10.1155/2020/8828878

Cited by 60 publications

(20 citation statements)

References 36 publications

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“…of synthesized AgNPs. Similar sharp peak for AgNPs between 400 and 500 nm during synthesis of nanoparticles via fungal filtrate has been observed for multiple fungi (Rani et al, 2017; Tyagi et al, 2019; Win et al, 2020), confirming the AgNPs synthesis in present study.…”

Section: Resultssupporting

confidence: 90%

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Gola

Tyagi

Arya

et al. 2021

Water Environment Research

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The present study utilized Aspergillus spp. for the synthesis of silver nanoparticles (AgNPs); the developed AgNPs were categorized using analytical techniques, that is, ultraviolet–visible (UV–vis) spectrophotometer, Zeta‐potential, dynamic light scattering (DLS), and transmission electron microscopy (TEM). A sharp peak of 463 nm highlighted the synthesis of AgNPs; further Zeta‐potential of −16 mV indicates stability of synthesized AgNPs. The TEM micrograph showed spherical and hexagonal shapes of synthesized AgNPs of 6–25 nm. The photocatalytic activity of fungal‐mediated AgNPs was evaluated for degradation of reactive yellow dye in the concentration range of 20–100 mg L−1. The results showed efficient degradation of dye using AgNPs in short span of time. For antibacterial activity, synthesized AgNPs, antibiotic, and AgNPs + antibiotic were tested. As per results, the zone of inhibition (ZOI) of AgNPs showed the values of 13 and 10 mm for Escherichia coli and Staphylococcus aureus, respectively. Further, the ZOI of penicillin highlighted the values of 18 and 17 mm for E. coli and S. aureus, respectively. When AgNPs and penicillin were used in combination, a clear synergistic effect was observed; the ZOI showed 0.49‐ and 0.36‐fold increase in area against E. coli and S. aureus, respectively, in comparison with penicillin or AgNPs alone. Further, the leftover biomass (retentate biomass) was used to decolorize the reactive yellow dye at different initial concentration ranging from 20 to 100 mg L−1. It was observed that 1 g L−1 retentate biomass (BR) can effectively remove 82%–100% dye at 20 and 100 mg L−1 initial dye concentration. Results also indicated that with increase in initial reactive dye concentration from 20 to 100 mg L−1, the decolorization capacity of retentate biomass (BR) (at 0.2 g L−1) decreased from 79.2% to 32.3%. However, the use of AgNPs synthesized leftover fungal biomass can be a good option for up taking the additional dyes/contaminants, and also as leftover biomass can be utilized effectively, it can prove to be an excellent approach for environment safety. As the literature studies did not mentioned the further use of retentate biomass, the present study provides an excellent approach for further research on this aspect. Practitioner points Synthesis of AgNPs from Aspergillus spp. and characterized with the help of a U.V‐vis spectrophotometer, a zeta potential, DLS and TEM. The developed AgNPs were used for antibacterial and dye degradation activity. The left over (retentate) fungal biomass was used further for additional dye degradation activity

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Section: Resultssupporting

confidence: 90%

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Gola

Tyagi

Arya

et al. 2021

Water Environment Research

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“…The antifungal activity of biogenic AgNPs against important phytopathogens (e.g., Fusarium oxysporum, F. tricinctum, Botrytis cinerea, Penicillium expansum, Aspergillus niger, Alternaria sp., and Rhizopus sp.) has been reported by many authors [119,[194][195][196], but mainly in vitro. The bio-AgNPs synthesized by Serratia sp.…”

Section: Plant Protectionmentioning

confidence: 84%

Biogenic Silver Nanoparticles: What We Know and What Do We Need to Know?

et al. 2021

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Nanobiotechnology is considered to be one of the fastest emerging fields. It is still a relatively new and exciting area of research with considerable potential for development. Among the inorganic nanomaterials, biogenically synthesized silver nanoparticles (bio-AgNPs) have been frequently used due to their unique physicochemical properties that result not only from their shape and size but also from surface coatings of natural origin. These properties determine antibacterial, antifungal, antiprotozoal, anticancer, anti-inflammatory, and many more activities of bio-AgNPs. This review provides the current state of knowledge on the methods and mechanisms of biogenic synthesis of silver nanoparticles as well as their potential applications in different fields such as medicine, food, agriculture, and industries.

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“…Furthermore, addition of cyanobacterial filtrates to plant seeds is een to increase the average germination 16 . Biogenic nanoparticles have proven to be effective nanomaterial-based fungicides for the control of some plant fungal diseases 17 . They have the potential to be widely used in agriculture as biocontrol agents to promote sustainable agriculture 18 .…”

Section: Introductionmentioning

confidence: 99%

Green synthesis and characterization of Fe3O4 nanoparticles using Chlorella-K01 extract for potential enhancement of plant growth stimulating and antifungal activity

Win

Khan

et al. 2021

Sci Rep

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The purpose of this research was to determine the efficacy of iron oxide nanoparticles (Fe3O4-NPs) using microalgal products as a plant growth stimulant and antifungal agent. The work was conducted with the phyco-synthesis and characterization of Fe3O4-NPs using 0.1 M ferric/ferrous chloride solution (2:1 ratio; 65 °C) with aqueous extract of the green microalga Chlorella K01. Protein, carbohydrate and polyphenol contents of Chlorella K01 extract were measured. The synthesized microalgal Fe3O4-NPs made a significant contribution to the germination and vigor index of rice, maize, mustard, green grams, and watermelons. Fe3O4-NPs also exhibited antifungal activity against Fusarium oxysporum, Fusarium tricinctum, Fusarium maniliforme, Rhizoctonia solani, and Phythium sp. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) scanning electron microscopy (SEM), transmission electron microscopy (TEM), particle size analysers (PSA), and zeta potential (ZP) measurements were used to characterize these green fabricated magnetite NPs. FTIR analysis showed that the synergy of microalgal proteins, carbohydrtates and polyphenols is responsible for the biofabrication of iron nanoparticles. A spheroid dispersion of biosynthesized Fe3O4-NPs with an average diameter of 76.5 nm was produced in the synthetic process.

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Fungus- (Alternaria sp.) Mediated Silver Nanoparticles Synthesis, Characterization, and Screening of Antifungal Activity against Some Phytopathogens

Cited by 60 publications

References 36 publications

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Biogenic Silver Nanoparticles: What We Know and What Do We Need to Know?

Green synthesis and characterization of Fe3O4 nanoparticles using Chlorella-K01 extract for potential enhancement of plant growth stimulating and antifungal activity

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