Inorganic nanomaterials usable in plant protection strategies

Francesconi, Sara; Schiavi, Daniele; Lorenzo, Veronica Di; Balestra, Giorgio Mariano

doi:10.1016/b978-0-12-823394-8.00005-6

Cited by 3 publications

(1 citation statement)

References 114 publications

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“…The antimicrobial activity of silver has long been known and exploited in medicine, and it is due to the release of silver ions. However, due to the ability to form complexes, silver ions exerted their activity for only a short time, a disadvantage overcome by the use of AgNPs (Francesconi et al 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Silver nanoclusters with Ag2+/3+ oxidative states are a new highly effective tool against phytopathogenic bacteria

Orfei

Moretti

Loreti³

et al. 2023

Appl Microbiol Biotechnol

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The main measure worldwide adopted to manage plant bacterial diseases is based on the application of copper compounds, which are often partially efficacious for the frequent appearance of copper-resistant bacterial strains and have raised concerns for their toxicity to the environment and humans. Therefore, there is an increasing need to develop new environmentally friendly, efficient, and reliable strategies for controlling plant bacterial diseases, and among them, the use of nanoparticles seems promising. The present study aimed to evaluate the feasibility of protecting plants against attacks of gram-negative and gram-positive phytopathogenic bacteria by using electrochemically synthesized silver ultra nanoclusters (ARGIRIUM‑SUNCs®) with an average size of 1.79 nm and characterized by rare oxidative states (Ag2+/3+). ARGIRIUM‑SUNCs strongly inhibited the in vitro growth (effective concentration, EC50, less than 1 ppm) and biofilm formation of Pseudomonas syringae pv. tomato and of quarantine bacteria Xanthomonas vesicatoria, Xylella fastidiosa subsp. pauca, and Clavibacter michiganensis subsp. michiganensis. In addition, treatments with ARGIRIUM‑SUNCs also provoked the eradication of biofilm for P. syringae pv. tomato, X. vesicatoria, and C. michiganensis subsp. michiganensis. Treatment of tomato plants via root absorption with ARGIRIUM‑SUNCs (10 ppm) is not phytotoxic and protected (80%) the plants against P. syringae pv. tomato attacks. ARGIRIUM‑SUNCs at low doses induced hormetic effects on P. syringae pv. tomato, X. vesicatoria, and C. michiganensis subsp. michiganensis as well as on tomato root growth. The use of ARGIRIUM‑SUNCs in protecting plants against phytopathogenic bacteria is a possible alternative control measure. Key points • ARGIRIUM‑SUNC has strong antimicrobial activities against phytopathogenic bacteria; • ARGIRIUM‑SUNC inhibits biofilm formation at low doses; • ARGIRIUM‑SUNC protects tomato plants against bacterial speck disease.

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Section: Discussionmentioning

confidence: 99%

Silver nanoclusters with Ag2+/3+ oxidative states are a new highly effective tool against phytopathogenic bacteria

Orfei

Moretti

Loreti³

et al. 2023

Appl Microbiol Biotechnol

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Nanotechnology for climate change mitigation: Enhancing plant resilience under stress environments

Shoukat,

Pitann,

Zafar

et al. 2024

J. Plant Nutr. Soil Sci.

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BackgroundNanotechnology, utilizing nanoparticles (NPs) with unique physicochemical properties, has significant potential in enhancing sustainable agriculture through innovations in plant nutrition, growth, and protection.AimsThis review aims to assess how nanotechnology, particularly NPs, contributes to sustainable agriculture by improving plant nutrition and growth, enhancing stress resistance, and offering solutions for phytoremediation and agricultural efficiency.MethodsWe examine studies showcasing the application of NPs in agriculture, focusing on their effects on plant growth, nutrient delivery, stress mitigation, pollutant removal, and the enhancement of food shelf life through nano‐encapsulated fertilizers and nano‐sensors.ResultsNPs have demonstrated promising results in slow‐release fertilizers for targeted nutrient delivery, improved germination and physiological activity under stress, and enhanced efficiency in phytoremediation by aiding the removal of pollutants. Nano‐sensors in food packaging detect deterioration and extend food shelf life, whereas nano‐encapsulation of agrochemicals offers environment‐friendly pest and nutrient management solutions.ConclusionsNanotechnology presents a forward‐looking approach to sustainable agriculture by enhancing crop productivity, resource use efficiency, and environmental protection. Continued research is essential to unlock the full potential of NPs in agriculture, emphasizing safe and efficient application methods to mitigate abiotic and biotic stresses and promote sustainability.

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Application of nanotechnology in food: processing, preservation, packaging and safety assessment

Biswas

Alam

Sarkar

et al. 2022

Heliyon

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Inorganic nanomaterials usable in plant protection strategies

Cited by 3 publications

References 114 publications

Silver nanoclusters with Ag2+/3+ oxidative states are a new highly effective tool against phytopathogenic bacteria

Silver nanoclusters with Ag2+/3+ oxidative states are a new highly effective tool against phytopathogenic bacteria

Nanotechnology for climate change mitigation: Enhancing plant resilience under stress environments

Application of nanotechnology in food: processing, preservation, packaging and safety assessment

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