{"title":"Evaluation of the potential of topically applied salicylic acid-encapsulated chitosan nanoparticles to protect tomato against Fusarium wilt","authors":"","doi":"10.1007/s13726-024-01283-z","DOIUrl":null,"url":null,"abstract":"<span> <h3>Abstract</h3> <p>In recent years, there has been a growing emphasis on eco-friendly methods to protect plants from pathogens, aiming to enhance crop yields while minimizing pesticide use. In this context, we synthesized salicylic acid-encapsulated chitosan nanoparticles (SA-CNPs) and evaluated their effectiveness in safeguarding tomato plants against Fusarium wilt caused by <em>Fusarium oxysporum f. </em>sp. <em>Lycopersici</em> <em>(FOL)</em>. SA-CNPs at concentrations of 0.01%, 0.05%, 0.1%, 0.15%, and 0.2% w/v were prepared using ionic gelation and characterized through scanning electron microscopy, zeta potential, X-ray diffraction, and Fourier transform infrared spectroscopy techniques. The results revealed an average particle size ranging from 30 to 300 nm, with zeta potential values − 30 to − 53 mV, confirming exceptional stability. Encapsulation efficiency varied from 19 to 90%. In antifungal tests, 0.2% SA-CNPs exhibited 76% inhibition rate using a food poisoning technique. Topical application of SA-CNPs increased the activities of plant defence enzymes and antioxidant enzymes in tomato plants. In an in vitro study, the percent efficacy of disease control (PEDC) demonstrated that 0.1% and 0.15% SA-CNPs provided 50% and 45% efficacy, respectively, in controlling <em>FOL</em> infection in tomato plants. These findings confirm the efficacy of SA-CNPs in reducing Fusarium wilt by leveraging their antifungal properties and enhancing antioxidant and plant defence enzymes.</p> </span> <span> <h3>Graphical abstract</h3> <p><span> <span> <img alt=\"\" src=\"https://static-content.springer.com/image/MediaObjects/13726_2024_1283_Figa_HTML.png\"/> </span> </span></p> </span>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Polymer Journal","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s13726-024-01283-z","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
In recent years, there has been a growing emphasis on eco-friendly methods to protect plants from pathogens, aiming to enhance crop yields while minimizing pesticide use. In this context, we synthesized salicylic acid-encapsulated chitosan nanoparticles (SA-CNPs) and evaluated their effectiveness in safeguarding tomato plants against Fusarium wilt caused by Fusarium oxysporum f. sp. Lycopersici(FOL). SA-CNPs at concentrations of 0.01%, 0.05%, 0.1%, 0.15%, and 0.2% w/v were prepared using ionic gelation and characterized through scanning electron microscopy, zeta potential, X-ray diffraction, and Fourier transform infrared spectroscopy techniques. The results revealed an average particle size ranging from 30 to 300 nm, with zeta potential values − 30 to − 53 mV, confirming exceptional stability. Encapsulation efficiency varied from 19 to 90%. In antifungal tests, 0.2% SA-CNPs exhibited 76% inhibition rate using a food poisoning technique. Topical application of SA-CNPs increased the activities of plant defence enzymes and antioxidant enzymes in tomato plants. In an in vitro study, the percent efficacy of disease control (PEDC) demonstrated that 0.1% and 0.15% SA-CNPs provided 50% and 45% efficacy, respectively, in controlling FOL infection in tomato plants. These findings confirm the efficacy of SA-CNPs in reducing Fusarium wilt by leveraging their antifungal properties and enhancing antioxidant and plant defence enzymes.
期刊介绍：
Iranian Polymer Journal, a monthly peer-reviewed international journal, provides a continuous forum for the dissemination of the original research and latest advances made in science and technology of polymers, covering diverse areas of polymer synthesis, characterization, polymer physics, rubber, plastics and composites, processing and engineering, biopolymers, drug delivery systems and natural polymers to meet specific applications. Also contributions from nano-related fields are regarded especially important for its versatility in modern scientific development.
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