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Jiang J, He K, Wang X, Zhang Y, Guo X, Qian L, Gao X, Liu S. Transcriptional dynamics of Fusarium pseudograminearum under high fungicide stress and the important role of FpZRA1 in fungal pathogenicity and DON toxin production. Int J Biol Macromol 2024; 276:133662. [PMID: 39025188 DOI: 10.1016/j.ijbiomac.2024.133662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/24/2024] [Accepted: 07/02/2024] [Indexed: 07/20/2024]
Abstract
Fusarium pseudograminearum, the causal agent of Fusarium crown rot, poses a significant threat to cereal crops. Building upon our previous investigation of the transcriptional response of this pathogen to four key fungicides (carbendazim, phenamacril, pyraclostrobin, and tebuconazole), this study delves into the impact of elevated fungicide concentrations using RNA-seq. Global transcriptomic analysis and gene clustering revealed significant enrichment of genes involved in the ABC transporter pathway. Among these transporters, FPSE_06011 (FpZRA1), a conserved gene in eukaryotes, exhibited consistent upregulation at both low and high fungicide concentrations. Targeted deletion of FpZRA1 resulted in reduced sporulation, spore germination, and tolerance to cell wall stress, osmotic stress, and oxidative stress. Furthermore, the FpZRA1 knockout mutants exhibited decreased pathogenicity on wheat coleoptiles and reduced production of the mycotoxin deoxynivalenol (DON), as evidenced by the markedly down-regulated expression of TRI5, TRI6, and TRI10 in the RT-qPCR analysis. In summary, our findings highlight the impact of fungicide concentration on transcriptional reprogramming in F. pseudograminearum and identify FpZRA1 as a critical regulator of fungal development, stress tolerance, and pathogenicity.
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Affiliation(s)
- Jia Jiang
- Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Kai He
- National Animal Protozoa Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xinyu Wang
- Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Yuan Zhang
- Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Xuhao Guo
- Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Le Qian
- Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Xuheng Gao
- Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Shengming Liu
- Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China.
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Lima AKO, Souza LMDS, Reis GF, Junior AGT, Araújo VHS, dos Santos LC, da Silva VRP, Chorilli M, Braga HDC, Tada DB, Ribeiro JADA, Rodrigues CM, Nakazato G, Muehlmann LA, Garcia MP. Synthesis of Silver Nanoparticles Using Extracts from Different Parts of the Paullinia cupana Kunth Plant: Characterization and In Vitro Antimicrobial Activity. Pharmaceuticals (Basel) 2024; 17:869. [PMID: 39065720 PMCID: PMC11279972 DOI: 10.3390/ph17070869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/27/2024] [Accepted: 06/30/2024] [Indexed: 07/28/2024] Open
Abstract
The green synthesis of silver nanoparticles (AgNPs) can be developed using safe and environmentally friendly routes, can replace potentially toxic chemical methods, and can increase the scale of production. This study aimed to synthesize AgNPs from aqueous extracts of guarana (Paullinia cupana) leaves and flowers, collected in different seasons of the year, as a source of active biomolecules capable of reducing silver ions (Ag+) and promoting the stabilization of colloidal silver (Ag0). The plant aqueous extracts were characterized regarding their metabolic composition by liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS/MS), phenolic compound content, and antioxidant potential against free radicals. The synthesized AgNPs were characterized by UV/Vis spectrophotometry, dynamic light scattering (DLS), nanoparticle tracking analysis (NTA), transmission electron microscopy (TEM), and scanning electron microscopy coupled to energy-dispersive X-ray spectrometry (EDX). The results demonstrated that the chemical characterization indicated the presence of secondary metabolites of many classes of compounds in the studied aqueous extracts studied, but alkaloids and flavonoids were predominant, which are widely recognized for their antioxidant capabilities. It was possible to notice subtle changes in the properties of the nanostructures depending on parameters such as seasonality and the part of the plant used, with the AgNPs showing surface plasmon resonance bands between 410 and 420 nm using the leaf extract and between 440 and 460 nm when prepared using the flower extract. Overall, the average hydrodynamic diameters of the AgNPs were similar among the samples (61.98 to 101.6 nm). Polydispersity index remained in the range of 0.2 to 0.4, indicating that colloidal stability did not change with storage time. Zeta potential was above -30 mV after one month of analysis, which is adequate for biological applications. TEM images showed AgNPs with diameters between 40.72 to 48.85 nm and particles of different morphologies. EDX indicated silver content by weight between 24.06 and 28.81%. The synthesized AgNPs exhibited antimicrobial efficacy against various pathogenic microorganisms of clinical and environmental interest, with MIC values between 2.12 and 21.25 µg/mL, which is close to those described for MBC values. Therefore, our results revealed the potential use of a native species of plant from Brazilian biodiversity combined with nanotechnology to produce antimicrobial agents.
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Affiliation(s)
- Alan Kelbis Oliveira Lima
- Nanobiotechnology Laboratory, Institute of Biological Sciences, University of Brasilia (UnB), Brasilia 70910-900, DF, Brazil; (A.K.O.L.); (M.P.G.)
- Brazilian Agricultural Research Corporation (EMBRAPA), Embrapa Agroenergy, Brasilia 70770-901, DF, Brazil; (J.A.d.A.R.); (C.M.R.)
| | - Lucas Marcelino dos Santos Souza
- Basic and Applied Bacteriology Laboratory, State University of Londrina (UEL), Londrina 86057-970, PR, Brazil; (L.M.d.S.S.); (G.N.)
| | - Guilherme Fonseca Reis
- Postgraduate Studies in Bioprocess Engineering and Biotechnology, Federal University of Paraná (UFPR), Palotina 85950-000, PR, Brazil;
| | - Alberto Gomes Tavares Junior
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-901, SP, Brazil; (A.G.T.J.); (V.H.S.A.); (M.C.)
| | - Victor Hugo Sousa Araújo
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-901, SP, Brazil; (A.G.T.J.); (V.H.S.A.); (M.C.)
| | - Lucas Carvalho dos Santos
- Laboratory for the Isolation and Transformation of Organic Molecules, Institute of Chemistry, University of Brasília (UnB), Brasilia 70910-900, DF, Brazil;
| | - Vitória Regina Pereira da Silva
- Post-Graduate Program in Pharmaceuticals Sciences, Faculty of Health Sciences, University of Brasilia (UnB), Brasilia 70910-900, DF, Brazil;
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-901, SP, Brazil; (A.G.T.J.); (V.H.S.A.); (M.C.)
| | - Hugo de Campos Braga
- Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São Jose dos Campos 12231-280, SP, Brazil; (H.d.C.B.); (D.B.T.)
| | - Dayane Batista Tada
- Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São Jose dos Campos 12231-280, SP, Brazil; (H.d.C.B.); (D.B.T.)
| | - José Antônio de Aquino Ribeiro
- Brazilian Agricultural Research Corporation (EMBRAPA), Embrapa Agroenergy, Brasilia 70770-901, DF, Brazil; (J.A.d.A.R.); (C.M.R.)
| | - Clenilson Martins Rodrigues
- Brazilian Agricultural Research Corporation (EMBRAPA), Embrapa Agroenergy, Brasilia 70770-901, DF, Brazil; (J.A.d.A.R.); (C.M.R.)
| | - Gerson Nakazato
- Basic and Applied Bacteriology Laboratory, State University of Londrina (UEL), Londrina 86057-970, PR, Brazil; (L.M.d.S.S.); (G.N.)
| | | | - Mônica Pereira Garcia
- Nanobiotechnology Laboratory, Institute of Biological Sciences, University of Brasilia (UnB), Brasilia 70910-900, DF, Brazil; (A.K.O.L.); (M.P.G.)
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Annamalai J, Seetharaman B, Sellamuthu I. Nanomaterials in the environment and their pragmatic voyage at various trophic levels in an ecosystem. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 364:121307. [PMID: 38870799 DOI: 10.1016/j.jenvman.2024.121307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/30/2024] [Accepted: 05/30/2024] [Indexed: 06/15/2024]
Abstract
In the development of nanotechnology, nanomaterials (NMs) have a huge credential in advancing the existing follow-ups of analytical and diagnosis techniques, drug designing, agricultural science, electronics, cosmetics, sports, textiles and water purification. However, NMs have also grasped attention of researchers onto their toxicity. In the present review, initially the development of notable NMs such as metal and metal-oxide nanoparticles (NPs), magnetic NPs, carbon-based NMs and quantum dots intended to be commercialized along with their applications are discussed. This is followed by the current scenario of NMs in the environment to widen the outlook on the concentration of NPs in the environmental compartments and the frequency of organism exposed to NPs at varied trophic levels. In order to understand the physiochemical and morphological significance of NPs in exhibiting toxicity, fate of NPs in the environment is briefly deliberated. This is further geared-up to glance in-sightedly on the organisms starting from primary producer to primary consumer, secondary consumer, tertiary consumer and decomposers encountering NPs in their habitual niche. The state of NPs to which organisms are exposed, mechanism of NP uptake and toxicity, anomalies faced at each trophic level, concentration of NPs that is liable to cause toxicity and, biotransfer of NPs to the next generation and trophic level are detailed. Finally, the future prospects on bioaccumulation and biomagnification of NP-based products are conversed. Thus, the review would be noteworthy in unveiling the significance of NPs in forthcoming years combined with threat towards each organism in an ecosystem.
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Affiliation(s)
- Jayshree Annamalai
- Endocrine Disruption and Reproductive Toxicology (EDART) Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, India.
| | - Barathi Seetharaman
- Endocrine Disruption and Reproductive Toxicology (EDART) Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, India.
| | - Iyappan Sellamuthu
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, India.
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Hafeez R, Guo J, Ahmed T, Jiang H, Raza M, Shahid M, Ibrahim E, Wang Y, Wang J, Yan C, An Q, White JC, Li B. Bio-formulated chitosan nanoparticles enhance disease resistance against rice blast by physiomorphic, transcriptional, and microbiome modulation of rice (Oryza sativa L.). Carbohydr Polym 2024; 334:122023. [PMID: 38553222 DOI: 10.1016/j.carbpol.2024.122023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/20/2024] [Accepted: 03/03/2024] [Indexed: 04/02/2024]
Abstract
Rice blast disease (RBD) caused by Magnaporthe oryzae, threaten food security by cutting agricultural output. Nano agrochemicals are now perceived as sustainable, cost-effective alternatives to traditional pesticides. This study investigated bioformulation of moringa chitosan nanoparticles (M-CsNPs) and their mechanisms for suppressing RBD while minimizing toxic effects on the microenvironment. M-CsNPs, sized 46 nm with semi-spherical morphology, significantly suppressed pathogen growth, integrity, and colonization at 200 mg L-1in vitro. Greenhouse tests with foliar exposure to the same concentration resulted in a substantial 77.7 % reduction in RBD, enhancing antioxidant enzyme activity and plant health. Furthermore, M-CsNPs improved photosynthesis, gas exchange, and the nutritional profile of diseased rice plants. RNA-seq analysis highlighted upregulated defense-related genes in treated rice plants. Metagenomic study showcased reshaping of the rice microbiome, reducing Magnaporthe abundance by 93.5 %. Both healthy and diseased rice plants showed increased microbial diversity, particularly favoring specific beneficial species Thiobacillus, Nitrospira, Nocardioides, and Sphingomicrobium in the rhizosphere and Azonexus, Agarivorans, and Bradyrhizobium in the phyllosphere. This comprehensive study unravels the diverse mechanisms by which M-CsNPs interact with plants and pathogens, curbing M. oryzae damage, promoting plant growth, and modulating the rice microbiome. It underscores the significant potential for effective plant disease management.
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Affiliation(s)
- Rahila Hafeez
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Junning Guo
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Temoor Ahmed
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; Xianghu Laboratory, Hangzhou 311231, China; MEU Research Unit, Middle East University, Amman, Jordan
| | - Hubiao Jiang
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Mubashar Raza
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Oasis, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China
| | - Muhammad Shahid
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad 38000, Pakistan
| | - Ezzeldin Ibrahim
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yanli Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jiaoyu Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
| | - Chengqi Yan
- Crop Institute, Ningbo Academy of Agricultural Sciences, Ningbo 315040, China
| | - Qianli An
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT, USA.
| | - Bin Li
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China.
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Dėnė L, Chrapačienė S, Laurinaitytė G, Rudinskaitė A, Viškelis J, Viškelis P, Balčiūnaitienė A. Green Synthesis of Silver Nanoparticles with Hyssopus officinalis and Salvia officinalis Extracts, Their Properties, and Antifungal Activity on Fusarium spp. PLANTS (BASEL, SWITZERLAND) 2024; 13:1611. [PMID: 38931043 PMCID: PMC11207945 DOI: 10.3390/plants13121611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024]
Abstract
Recent focus has been given to nanoparticles as an alternative fungicidal compound instead of chemical ones. More environmentally friendly ways of synthesis are the highest priority regarding the antifungal agents in the agriculture sector. Therefore, in this research, hyssop (H. officinalis) and sage (S. officinalis) aqueous extracts were prepared and used as a reducing source in the green synthesis of silver nanoparticles (AgNPs). Aqueous extracts and green synthesized AgNPs were examined for phytochemical composition and antioxidant capacity. Hyssop and sage extracts based AgNPs were analyzed using UV-vis spectrometry, SEM-EDS, and TEM-EDS. Antifungal activity against Fusarium spp. isolates collected from different infected crops was determined. Fusarium spp. isolates from strawberry, asparagus, pea, carrot, wheat, and rapeseed samples identified at the molecular level by translation elongation factor 1-alpha (TEF1α) gene amplification and sequencing. Green synthesized AgNPs had lower phytochemical content, however higher antioxidant activity compared to pure extracts. Both hyssop and sage extracts are suitable reducing agents for AgNPs formation, and sage extract results in larger particle size. Aqueous hyssop extract had higher antifungal activity than aqueous sage extract. However, a 10% concentration of whole sage extract based AgNPs solution, added to the PDA medium, and a 5% concentration of hyssop extract based AgNPs inhibited Fusarium spp. the most. F. proliferatum was the most sensitive to all treatments among the other fungi.
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Affiliation(s)
- Lina Dėnė
- Laboratory of Biochemistry and Technology, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas District, LT-54333 Babtai, Lithuania; (J.V.); (P.V.); (A.B.)
| | - Simona Chrapačienė
- Laboratory of Plant Protection, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas District, LT-54333 Babtai, Lithuania; (S.C.)
| | - Greta Laurinaitytė
- Laboratory of Plant Protection, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas District, LT-54333 Babtai, Lithuania; (S.C.)
| | - Aira Rudinskaitė
- Laboratory of Plant Protection, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas District, LT-54333 Babtai, Lithuania; (S.C.)
| | - Jonas Viškelis
- Laboratory of Biochemistry and Technology, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas District, LT-54333 Babtai, Lithuania; (J.V.); (P.V.); (A.B.)
| | - Pranas Viškelis
- Laboratory of Biochemistry and Technology, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas District, LT-54333 Babtai, Lithuania; (J.V.); (P.V.); (A.B.)
| | - Aistė Balčiūnaitienė
- Laboratory of Biochemistry and Technology, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas District, LT-54333 Babtai, Lithuania; (J.V.); (P.V.); (A.B.)
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Kour D, Khan SS, Kumari S, Singh S, Khan RT, Kumari C, Kumari S, Dasila H, Kour H, Kaur M, Ramniwas S, Kumar S, Rai AK, Cheng WH, Yadav AN. Microbial nanotechnology for agriculture, food, and environmental sustainability: Current status and future perspective. Folia Microbiol (Praha) 2024; 69:491-520. [PMID: 38421484 DOI: 10.1007/s12223-024-01147-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 01/31/2024] [Indexed: 03/02/2024]
Abstract
The field of nanotechnology has the mysterious capacity to reform every subject it touches. Nanotechnology advancements have already altered a variety of scientific and industrial fields. Nanoparticles (NPs) with sizes ranging from 1 to 100 nm (nm) are of great scientific and commercial interest. Their functions and characteristics differ significantly from those of bulk metal. Commercial quantities of NPs are synthesized using chemical or physical methods. The use of the physical and chemical approaches remained popular for many years; however, the recognition of their hazardous effects on human well-being and conditions influenced serious world perspectives for the researchers. There is a growing need in this field for simple, non-toxic, clean, and environmentally safe nanoparticle production methods to reduce environmental impact and waste and increase energy productivity. Microbial nanotechnology is relatively a new field. Using various microorganisms, a wide range of nanoparticles with well-defined chemical composition, morphology, and size have been synthesized, and their applications in a wide range of cutting-edge technological areas have been investigated. Green synthesis of the nanoparticles is cost-efficient and requires low maintenance. The present review highlights the synthesis of the nanoparticles by different microbes, their characterization, and their biotechnological potential. It further deals with the applications in biomedical, food, and textile industries as well as its role in biosensing, waste recycling, and biofuel production.
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Affiliation(s)
- Divjot Kour
- Department of Microbiology, Akal College of Basic Sciences, Eternal University, Baru Sahib, Sirmaur, 173101, Himachal Pradesh, India
| | - Sofia Sharief Khan
- Department of Biotechnology, Shri Mata Vaishno Devi University, Katra, 182320, Jammu and Kashmir, India
| | - Shilpa Kumari
- Department of Physics, IEC University, Baddi, 174103, Solan, Himachal Pradesh, India
| | - Shaveta Singh
- University School of Medical and Allied Sciences, Rayat Bahra University, Mohali, Chandigarh, India
| | - Rabiya Tabbassum Khan
- Department of Biotechnology, Shri Mata Vaishno Devi University, Katra, 182320, Jammu and Kashmir, India
| | - Chandresh Kumari
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Vill-Bhajhol 173229, Solan, Himachal Pradesh, India
| | - Swati Kumari
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Vill-Bhajhol 173229, Solan, Himachal Pradesh, India
| | - Hemant Dasila
- Department of Microbiology, Akal College of Basic Sciences, Eternal University, Baru Sahib, Sirmaur, 173101, Himachal Pradesh, India
| | - Harpreet Kour
- Department of Botany, University of Jammu, Jammu, 180006, Jammu and Kashmir, India
| | - Manpreet Kaur
- Department of Physics, IEC University, Baddi, 174103, Solan, Himachal Pradesh, India
| | - Seema Ramniwas
- Department of Biotechnology, University Centre for Research and Development, Chandigarh University, Gharuan, 140413, Punjab, India
| | - Sanjeev Kumar
- Department of Genetics and Plant Breeding, Faculty of Agricultural Science, GLA University, Mathura, Uttar Pradesh, India
| | - Ashutosh Kumar Rai
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Wan-Hee Cheng
- Faculty of Health and Life Sciences, INTI International University, Persiaran Perdana BBN, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
| | - Ajar Nath Yadav
- Department of Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, 173101, Himachal Pradesh, India.
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Sivalingam AM, Pandian A. Identification and characterization of silver nanoparticles from Erythrina indica and its antioxidant and Uropathogenic antimicrobial properties. Microb Pathog 2024; 190:106635. [PMID: 38579934 DOI: 10.1016/j.micpath.2024.106635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/01/2024] [Accepted: 03/28/2024] [Indexed: 04/07/2024]
Abstract
The plant Erythrina indica comes under Fabaceae family, mainly used for used in traditional medicine as nervine sedative, antiepileptic, antiasthmatic, collyrium in opthalmia, antiseptic. Current study focused synthesize of silver nanoparticles (AgNPs) by E. indica leaf ethanol extract. The green-synthesized AgNPs underwent characterization using multiple analytical techniques, including UV-visible, FTIR, DLS, SEM, TEM, XRD, and EDX, and estimation of their antioxidant activity and antimicrobial activity. Phytochemical analysis identified alkaloids, tannins, saponins, flavonoids, and phenols as secondary metabolites. The Total Phenol Content (TPC) was determined to be 237.35 ± 2.02 mg GAE-1, indicating a substantial presence of phenolic compounds. The presence of AgNPs was verified through UV-Visible analysis at 420 nm, and FT-IR revealed characteristic phenolic functional groups. DLS analysis indicated a narrow size distribution (polydispersity index - PDI: 3.47%), with SEM revealing spherical AgNPs of approximately 20 nm. TEM showed homogeneous, highly polycrystalline AgNPs with lattice spacing at 0.297. XRD analysis demonstrated crystallinity and purity, with distinct reflection peaks corresponding to miller indices of JCPDS card no. 01 087 1473. In vitro, AgNPs exhibited robust antioxidant activity like; DPPH, ABTS, and H2O2, surpassing E. indica-assisted synthesis. ABTS assay indicated higher antioxidant activity (81.94 ± 0.05%) for AgNPs at 734 nm, while E. indica extraction showed 39.67 ± 0.07%. At 532 nm, both E. indica extraction (57.71 ± 0.11%) and AgNPs (37.41 ± 0.17%) exhibited H2O2 scavenging. Furthermore, AgNPs displayed significant antimicrobial properties, inhibiting Staphylococcus aureus (15.7 ± 0.12 mm) and Candida albicans (10.7 ± 0.17 mm) byfor the concentration of 80 μg/mL. Through the characterizations underscore of the potential of Erythrina indica-synthesized AgNPs, rich in polyphenolic compounds, for pharmacological, medical, biological applications and antipyretic properties.
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Affiliation(s)
- Azhagu Madhavan Sivalingam
- Natural Products & Nanobiotechnology Research Lab, Department of Community Medicine, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), (Saveetha Deemed to be University), Thandalam, Chennai, 600 105, Tamil Nadu, India.
| | - Arjun Pandian
- Centre for Advanced Research, Institute of Biotechnology, Saveetha School of Engineering (SSE), Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Thandalam, Chennai, 602105, Tamil Nadu, India
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8
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Stałanowska K, Szablińska-Piernik J, Pszczółkowska A, Railean V, Wasicki M, Pomastowski P, Lahuta LB, Okorski A. Antifungal Properties of Bio-AgNPs against D. pinodes and F. avenaceum Infection of Pea ( Pisum sativum L.) Seedlings. Int J Mol Sci 2024; 25:4525. [PMID: 38674112 PMCID: PMC11050071 DOI: 10.3390/ijms25084525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Ascochyta blight and Fusarium root rot are the most serious fungal diseases of pea, caused by D. pinodes and F. avenaceum, respectively. Due to the lack of fully resistant cultivars, we proposed the use of biologically synthesized silver nanoparticles (bio-AgNPs) as a novel protecting agent. In this study, we evaluated the antifungal properties and effectiveness of bio-AgNPs, in in vitro (poisoned food technique; resazurin assay) and in vivo (seedlings infection) experiments, against D. pinodes and F. avenaceum. Moreover, the effects of diseases on changes in the seedlings' metabolic profiles were analyzed. The MIC for spores of both fungi was 125 mg/L, and bio-AgNPs at 200 mg/L most effectively inhibited the mycelium growth of D. pinodes and F. avenaceum (by 45 and 26%, respectively, measured on the 14th day of incubation). The treatment of seedlings with bio-AgNPs or fungicides before inoculation prevented the development of infection. Bio-AgNPs at concentrations of 200 mg/L for D. pinodes and 100 mg/L for F. avenaceum effectively inhibited infections' spread. The comparison of changes in polar metabolites' profiles revealed disturbances in carbon and nitrogen metabolism in pea seedlings by both pathogenic fungi. The involvement of bio-AgNPs in the mobilization of plant metabolism in response to fungal infection is also discussed.
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Affiliation(s)
- Karolina Stałanowska
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland; (K.S.); (L.B.L.)
| | - Joanna Szablińska-Piernik
- Department of Botany and Evolutionary Ecology, University of Warmia and Mazury in Olsztyn, Pl. Łódzki 1, 10-719 Olsztyn, Poland;
| | - Agnieszka Pszczółkowska
- Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Pl. Łódzki 5, 10-727 Olsztyn, Poland;
| | - Viorica Railean
- Department of Infectious, Invasive Diseases and Veterinary Administration, Institute of Veterinary Medicine, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland;
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland; (M.W.); (P.P.)
| | - Miłosz Wasicki
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland; (M.W.); (P.P.)
| | - Paweł Pomastowski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland; (M.W.); (P.P.)
- Department of Inorganic and Coordination Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Lesław Bernard Lahuta
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland; (K.S.); (L.B.L.)
| | - Adam Okorski
- Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Pl. Łódzki 5, 10-727 Olsztyn, Poland;
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Zhu Y, Hu X, Qiao M, Zhao L, Dong C. Penicillium polonicum-mediated green synthesis of silver nanoparticles: Unveiling antimicrobial and seed germination advancements. Heliyon 2024; 10:e28971. [PMID: 38601517 PMCID: PMC11004220 DOI: 10.1016/j.heliyon.2024.e28971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/01/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024] Open
Abstract
Silver nanoparticles (AgNPs), widely recognized for their nanoscale geometric size and unique properties, such as large specific surface area, high permeability, and high safety, were synthesized using the endophytic fungus Penicillium polonicum PG21 through a green approach. Four key synthesis factors-48 h, 45 °C, pH 9.0, and 80 mM AgNPs concentration-were optimized. Characterization via ultraviolet-visible spectroscopy, transmission electron microscopy, Fourier-transform infrared spectroscopy, and X-ray diffraction revealed the AgNPs as approximately 3-25 nm spherical particles with numerous functional groups ensuring stability. AgNPs were tested against various fungal and bacterial plant pathogens, including Botrytis cinerea (EB-1), Alternaria alternata (EB-2, EB-3), Fusarium solani (RG-1), Williamsia serinedens (SL-1), Sphingopyxis macrogoltabida (SL-2), Bacillus velezensis (SL-3), and Pseudomonas mediterranea (SL-4), causing agricultural challenges. PG21-synthesized AgNPs exhibited inhibition rates against all tested fungi, with 60 μg/mL AgNPs demonstrating optimal inhibition rates. Notably, EB-1 experienced a significant growth inhibition, reaching an inhibition rate reached of 74.22 ± 1.54%. Conversely, RG-1 exhibited the smallest inhibitory effect at 48.13 ± 0.92%. The effect of AgNPs on safflower seed germination and growth revealed notable increases in shoot length, fresh weight, stem length, and number of lateral roots-1.4, 1.4, 1.33, and 10.67 times higher than the control, respectively, at an AgNPs concentration of 80 μg/mL. In conclusion, green-synthesized AgNPs demonstrate pathogen toxicity, showcasing potential applications in disease management for industrial crops and promoting plant growth.
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Affiliation(s)
- Yunhao Zhu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, Henan, PR China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of PR China, PR China
| | - Xiangxiang Hu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, Henan, PR China
| | - Mengyi Qiao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, Henan, PR China
| | - Le Zhao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, Henan, PR China
| | - Chengming Dong
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, Henan, PR China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of PR China, PR China
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Zhang Z, Chen T, Yin X, Wang W, Li W, Chen X, Ma J, Long Y. Honokiol inhibits Botryosphaeria dothidea, the causal pathogen of kiwifruit soft rot, by targeting membrane lipid biosynthesis. PEST MANAGEMENT SCIENCE 2024; 80:1779-1794. [PMID: 38031205 DOI: 10.1002/ps.7910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/23/2023] [Accepted: 11/30/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND Kiwifruit soft rot is mainly caused by Botryosphaeria dothidea, representing a considerable threat to kiwifruit industry. This investigation assessed the inhibitory consequences and mechanisms of honokiol against B. dothidea, evaluating the inhibitory effects and underlying mechanism. RESULTS A strain of B.dothidea (XFCT-2) was isolated from infected soft rot kiwifruit. The findings indicate that honokiol hindered the mycelial growth, conidial germination, and pathogenicity of B. dothidea in a dose-dependent manner, both in vitro and in vivo. Furthermore, ultrastructural examinations showed that honokiol impaired the integrity of B. dothidea, leading to an elevation in cell membrane permeability, engendering a multitude of intracellular substance extravasations and hampering energy metabolism. Transcriptome analysis exhibited that honokiol-regulated genes were related to membrane lipid biosynthesis, comprising ACC1, FAS2, Arp2, gk, Cesle, and Etnk1. These findings indicate that honokiol impedes B. dothidea by obstructing lipid biosynthesis within the cell membrane and compromising its integrity, halting the growth of the mycelia, which could potentially cause cellular demise. CONCLUSION This investigation illustrates how honokiol functions as an eco-friendly approach to prevent the occurrence of soft rot in kiwifruits. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Zhuzhu Zhang
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
- Teaching Experiment Farm, Guizhou University, Guiyang, China
| | - Tingting Chen
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
- Teaching Experiment Farm, Guizhou University, Guiyang, China
| | - Xianhui Yin
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Weizhen Wang
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Wenzhi Li
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Xuetang Chen
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Jiling Ma
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
| | - Youhua Long
- Research Center for Engineering Technology of Kiwifruit, Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang, China
- Teaching Experiment Farm, Guizhou University, Guiyang, China
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11
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Shireen Akhter Jahan Q, Sultana Z, Ud-Daula MA, Md. Ashikuzzaman, Md. Shamim Reja, Rahman MM, Khaton A, Tang MAK, Rahman MS, Hossain Md. Faruquee, Lee SJ, Rahman AM. Optimization of green silver nanoparticles as nanofungicides for management of rice bakanae disease. Heliyon 2024; 10:e27579. [PMID: 38533066 PMCID: PMC10963222 DOI: 10.1016/j.heliyon.2024.e27579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/28/2024] Open
Abstract
Rice bakanae, a devastating seed-borne disease caused by Fusarium species requires a more attractive and eco-friendly management strategy. The optimization of plant-mediated silver nanoparticles (AgNPs) as nanofungicides by targeting Fusarium species may be a rational approach. In this study, Azadirachta indica leaf aqueous extract-based AgNPs (AiLAE-AgNPs) were synthesized through the optimization of three reaction parameters: A. indica leaf amount, plant extract-to-AgNO3 ratio (reactant ratio), and incubation time. The optimized green AgNPs were characterized using ultraviolet-visible light (UV-Vis) spectroscopy, field emission scanning electron microscopy (FESEM) with energy dispersive X-ray (EDX) spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS), and powder X-ray diffraction (XRD) techniques. The optimal conditions for producing spherical, unique, and diminutive-sized AgNPs ranging from 4 to 27 nm, with an average size of 15 nm, were 2 g AiLAE at a 1:19 ratio (extract-to-AgNO3) and incubated for 4 h. Fusarium isolates collected from infected soils and identified as F. fujikuroi (40) and F. proliferatum (58 and 65) by PCR were used for seed infestation. The AgNPs exhibited concentration-dependent mycelial growth inhibition with EC50 values ranging from 2.95 to 5.50 μg/mL. The AgNPs displayed exposure time-dependent seed disinfectant potential (complete CFU reduction in F. fujikuroi (40) and F. proliferatum (58) was observed at a concentration of 17.24 μg/mL). The optimized green AgNPs were non-toxic to germinating seeds, and completely cured bakanae under net-house conditions, suggesting their great nano-fungicidal potency for food security and sustainable agriculture.
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Affiliation(s)
| | - Ziniya Sultana
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia, 7003, Bangladesh
| | - Md. Asad Ud-Daula
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia, 7003, Bangladesh
| | - Md. Ashikuzzaman
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia, 7003, Bangladesh
| | - Md. Shamim Reja
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia, 7003, Bangladesh
| | - Md. Mahfuzur Rahman
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia, 7003, Bangladesh
| | - Amina Khaton
- Plant Pathology Division, Bangladesh Rice Research Institute, Gazipur, 1701, Bangladesh
| | - Md. Abul Kashem Tang
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia, 7003, Bangladesh
| | - M. Safiur Rahman
- Chemistry Division, Atomic Energy Centre (AECD), Bangladesh Atomic Energy Commission, Bangladesh
| | - Hossain Md. Faruquee
- Department of Biotechnology and Genetical Engineering, Islamic University, Kushtia, 7003, Bangladesh
| | - Seung Ju Lee
- Department of Food Science and Biotechnology, Dongguk University, Seoul, South Korea
| | - A.T.M. Mijanur Rahman
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia, 7003, Bangladesh
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12
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Zhou Q, Xia Z, Zhang Y, Sun Z, Zeng W, Zhang N, Yuan C, Gong C, Zhou Y, Xue W. Design of a delivery vehicle chitosan-based self-assembling: controlled release, high hydrophobicity, and safe treatment of plant fungal diseases. J Nanobiotechnology 2024; 22:121. [PMID: 38504264 PMCID: PMC10949580 DOI: 10.1186/s12951-024-02386-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 03/07/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Traditional pesticides are poorly water-soluble and suffer from low bioavailability. N-succinyl chitosan (NSCS) is a water-soluble chitosan derivative, has been recently used to encapsulate hydrophobic drugs to improve their bioavailability. However, it remains challenging to synthesize pesticides of a wide variety of water-soluble drugs and to scale up the production in a continuous manner. RESULTS A synthetic method for preparing water-soluble nanopesticides with a polymer carrier was applied. The bioactive molecule BTL-11 was loaded into hollow NSCS to promote drug delivery, improve solubility and anti-fungal activity. The synthesized nanopesticides had well controlled sizes of 606 nm and the encapsulation rate was 80%. The release kinetics, drug toxicity and drug activity were further evaluated. The inhibitory activity of nanopesticides against Rhizoctonia solani (R. solani) was tested in vivo and in vitro. In vivo against R. solani trials revealed that BTL-11 has excellent control efficiency for cultivated rice leaf and sheath was 79.6 and 76.5%, respectively. By contrast, for BTL-11@NSCS NPs, the anti-fungal ability was strongly released and afforded significant control efficiencies of 85.9 and 81.1%. Those effects were significantly better than that of the agricultural fungicide azoxystrobin (51.5 and 66.5%). The proposed mechanism was validated by successfully predicting the synthesis outcomes. CONCLUSIONS This study demonstrates that NSCS is a promising biocompatible carrier, which can enhance the efficacy of pesticides, synergistically improve plant disease resistance, protect crop growth, and can be used for the delivery of more insoluble pesticides.
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Affiliation(s)
- Qing Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Zhi Xia
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
- College of Chemistry and Chemical Engineering, Guizhou University of Engineering Science, Bijie, 551700, China
| | - Yu Zhang
- College of Chemistry and Chemical Engineering, Guizhou University of Engineering Science, Bijie, 551700, China
| | - Zhiling Sun
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Wei Zeng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Nian Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Chunmei Yuan
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Chenyu Gong
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Yuanxiang Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Wei Xue
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China.
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13
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Živančev J, Bulut S, Kocić-Tanackov S, Jović D, Fišteš A, Antić I, Djordjevic A. The impact of fullerenol nanoparticles on the growth of toxigenic Aspergillus flavus and aflatoxins production in vitro and in corn flour. J Food Sci 2024; 89:1814-1827. [PMID: 38317383 DOI: 10.1111/1750-3841.16952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 12/16/2023] [Accepted: 01/07/2024] [Indexed: 02/07/2024]
Abstract
Antifungal and antimycotoxigenic activity of fullerenol nanoparticles (FNPs) were investigated on Aspergillus flavus growth isolated from a real food sample and aflatoxins (AFs) (AFB1 and AFB2 ) production. The final FNPs concentrations in in vitro and in commercial corn flour after the stationary incubation period of 7 and 14 days were in the range 0.16-80 µg/mL and 0.16-80 µg/g, respectively. Nanocharacterization of FNPs revealed an average size of 5-20 nm and a zeta potential of -35 mV. The highest degree of A. flavus mycelium growth inhibition (28%) after 7 days was observed for applied FNP concentration of 8.0 µg/mL, while after 14 days FNP concentration of 0.32 µg/mL led to the maximal inhibition of A. flavus mycelium growth (36%). Spearman's correlations analysis revealed a strong positive correlation between AFB1 and AFB2 concentrations in YES broth after 7 (R = 0.994, p < 0.05) and 14 days (R = 0.976), as well as between AFs concentrations and A. flavus mycelium mass after 7 (R = 0.786 for AFB1 and R = 0.766 for AFB2 ) and 14 days (R = 0.810 for AFB1 and R = 0.833 for AFB2 ). Paired samples t-test showed the existence of a statistically significant difference (p < 0.05) between the produced AFs concentrations after the incubation of 7 and 14 days. Regarding the artificially inoculated corn flour the lower applied FNP concentrations (0.16-0.8 µg/g) achieved a reduction of AFB1 up to 42% and 60% after 7 and 14 days, respectively.
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Affiliation(s)
- Jelena Živančev
- Faculty of Technology Novi Sad, University of Novi Sad, Novi Sad, Serbia
| | - Sandra Bulut
- Faculty of Technology Novi Sad, University of Novi Sad, Novi Sad, Serbia
| | | | - Danica Jović
- Faculty of Sciences, Department of Chemistry, Biochemistry, and Environmental Protection, University of Novi Sad, Novi Sad, Serbia
| | - Aleksandar Fišteš
- Faculty of Technology Novi Sad, University of Novi Sad, Novi Sad, Serbia
| | - Igor Antić
- Faculty of Technology Novi Sad, University of Novi Sad, Novi Sad, Serbia
| | - Aleksandar Djordjevic
- Faculty of Sciences, Department of Chemistry, Biochemistry, and Environmental Protection, University of Novi Sad, Novi Sad, Serbia
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14
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Kim DY, Patel SKS, Rasool K, Lone N, Bhatia SK, Seth CS, Ghodake GS. Bioinspired silver nanoparticle-based nanocomposites for effective control of plant pathogens: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168318. [PMID: 37956842 DOI: 10.1016/j.scitotenv.2023.168318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/15/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023]
Abstract
Plant pathogens, including bacteria, fungi, and viruses, pose significant challenges to the farming community due to their extensive diversity, the rapidly evolving phenomenon of multi-drug resistance (MDR), and the limited availability of effective control measures. Amid mounting global pressure, particularly from the World Health Organization, to limit the use of antibiotics in agriculture and livestock management, there is increasing consideration of engineered nanomaterials (ENMs) as promising alternatives for antimicrobial applications. Studies focusing on the application of ENMs in the fight against MDR pathogens are receiving increasing attention, driven by significant losses in agriculture and critical knowledge gaps in this crucial field. In this review, we explore the potential contributions of silver nanoparticles (AgNPs) and their nanocomposites in combating plant diseases, within the emerging interdisciplinary arena of nano-phytopathology. AgNPs and their nanocomposites are increasingly acknowledged as promising countermeasures against plant pathogens, owing to their unique physicochemical characteristics and inherent antimicrobial properties. This review explores recent advancements in engineered nanocomposites, highlights their diverse mechanisms for pathogen control, and draws attention to their potential in antibacterial, antifungal, and antiviral applications. In the discussion, we briefly address three crucial dimensions of combating plant pathogens: green synthesis approaches, toxicity-environmental concerns, and factors influencing antimicrobial efficacy. Finally, we outline recent advancements, existing challenges, and prospects in scholarly research to facilitate the integration of nanotechnology across interdisciplinary fields for more effective treatment and prevention of plant diseases.
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Affiliation(s)
- Dae-Young Kim
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea
| | | | - Kashif Rasool
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Nasreena Lone
- School of Allied Healthcare and Sciences, JAIN Deemed University, Whitefield, Bangalore 560066, India
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | | | - Gajanan Sampatrao Ghodake
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea.
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15
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Dang Z, Ma X, Yang Z, Wen X, Zhao P. Electrospun Nanofiber Scaffolds Loaded with Metal-Based Nanoparticles for Wound Healing. Polymers (Basel) 2023; 16:24. [PMID: 38201687 PMCID: PMC10780332 DOI: 10.3390/polym16010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/15/2023] [Accepted: 12/16/2023] [Indexed: 01/12/2024] Open
Abstract
Failures of wound healing have been a focus of research worldwide. With the continuous development of materials science, electrospun nanofiber scaffolds loaded with metal-based nanoparticles provide new ideas and methods for research into new tissue engineering materials due to their excellent antibacterial, anti-inflammatory, and wound healing abilities. In this review, the stages of extracellular matrix and wound healing, electrospun nanofiber scaffolds, metal-based nanoparticles, and metal-based nanoparticles supported by electrospun nanofiber scaffolds are reviewed, and their characteristics and applications are introduced. We discuss in detail the current research on wound healing of metal-based nanoparticles and electrospun nanofiber scaffolds loaded with metal-based nanoparticles, and we highlight the potential mechanisms and promising applications of these scaffolds for promoting wound healing.
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Affiliation(s)
| | | | | | | | - Pengxiang Zhao
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China; (Z.D.); (X.M.); (Z.Y.); (X.W.)
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16
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Joshi A, Joshi R, Koradiya P, Vank H. Changes of microbiome in response to supplements with silver nanoparticles in cotton rhizosphere. J Basic Microbiol 2023; 63:1451-1463. [PMID: 37718380 DOI: 10.1002/jobm.202300275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/20/2023] [Accepted: 08/26/2023] [Indexed: 09/19/2023]
Abstract
The current study focuses on analyzing the effects of supplements containing silver nanoparticles (AgNPs) on plant growth and rhizospheric bacterial communities. Specifically, the impact of AgNP supplements was assessed on both plant growth promoting traits and bacterial communities in the soil. To do this, a screening process was conducted to select bacteria capable of synthesizing AgNPs through extracellular biosynthesis. UV-Visible spectrophotometer, Fourier transform infrared, X-ray diffraction, scanning electron microscope, and field emission scanning electron microscopy all confirmed, produced AgNPs is in agglomerates form. The resulting AgNPs were introduced into soil along with various supplements and their effects were evaluated after 10 days using next generation sequencing (Illumina-16S rDNA V3-V4 region dependent) to analyze changes in bacterial communities. Seed germination, root-shoot biomass and chlorophyll content were used to assess the growth of the cotton plant, whereas the bacterial ability to promote growth was evaluated by measuring its culturable diversity including traits like phosphate solubilization and indole acetic acid production. The variance in Bray-Curtis β diversity among six selected combinations including control depends largely on the type of added supplements contributing to 95%-97% of it. Moreover, seed germination improves greatly between 63% and 100% at a concentration range of 1.4 to 2.8 mg/L with different types of supplements. Based on the results obtained through this study, it is evident that using AgNPs along with fructose could be an effective tool for promoting Gossypium hirsutum growth and enhancing plant growth traits like profiling rhizospheric bacteria. The results that have been obtained endorse the idea of boosting the growth of rhizospheric bacteria in a natural way when AgNPs are present. Using these supplements in fields that have been contaminated will lead to a better understanding of how ecological succession occurs among rhizospheric bacteria, and what effect it has on the growth of plants.
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Affiliation(s)
- Abhijeet Joshi
- Department of Microbiology, Atmiya University, Rajkot, Gujarat, India
| | - Radhika Joshi
- Department of Microbiology, Atmiya University, Rajkot, Gujarat, India
| | - Prushti Koradiya
- Department of Microbiology, Atmiya University, Rajkot, Gujarat, India
| | - Hetvi Vank
- Department of Microbiology, Atmiya University, Rajkot, Gujarat, India
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17
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Maciel AAM, Cunha FA, Freire TM, de Menezes FL, Fechine LMUD, Rocha JS, de Cássia Carvalho Barbosa R, Martins RT, da Conceição dos Santos Oliveira Cunha M, Santos-Oliveira R, Queiroz MVO, Fechine PBA. Development and evaluation of an anti-candida cream based on silver nanoparticles. 3 Biotech 2023; 13:352. [PMID: 37810191 PMCID: PMC10550885 DOI: 10.1007/s13205-023-03776-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/17/2023] [Indexed: 10/10/2023] Open
Abstract
The ineffectiveness of azole drugs in treating Vulvovaginal Candidiasis (VVC) and Recurrent Vulvovaginal Candidiasis (RVVC) due to antifungal resistance of non-albicans Candida has led to the investigation of inorganic nanoparticles with biological activity. Silver nanoparticles (AgNPs) are important in nanomedicine and have been used in various products and technologies. This study aimed to develop a vaginal cream and assess its in vitro antimicrobial activity against Candida parapsilosis strains, specifically focusing on the synergy between AgNPs and miconazole. AgNPs were synthesized using glucose as a reducing agent and sodium dodecyl sulfate (SDS) as a stabilizer in varying amounts (0.50, 0.25, and 0.10 g). The AgNPs were characterized using UV-Visible (UV-Vis) and Fourier-Transform Infrared (FT-IR) spectroscopies, X-Ray Diffraction (XRD), Dynamic Light Scattering (DLS), Scanning Electron Microscopy (SEM), and Energy Dispersive X-Ray Analysis (EDX). Fifty strains of Candida parapsilosis were used to evaluate the synergistic activity. AgNPs synthesized with 0.5 g SDS had an average size of 77.58 nm and a zeta potential of -49.2 mV, while AgNPs with 0.25 g showed 91.22 nm and -47.2 mV, respectively. AgNPs stabilized with 0.1 g of SDS were not effective. When combined with miconazole, AgNPs exhibited significant antifungal activity, resulting in an average increase of 80% in inhibition zones. The cream developed in this study, containing half the miconazole concentration of commercially available medication, demonstrated larger inhibition zones compared to the commercial samples.
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Affiliation(s)
- Antônio Auberson Martins Maciel
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará (UFC), Pici Campus, 12100, Fortaleza, CE 60451-970 Brazil
- Departament of Clinical and Toxicological Analysis, Federal University of Ceará (UFC), Capitão Francisco Pedro Street, 1210, Rodolfo Teófilo, Fortaleza, CE 60270-430 Brazil
| | - Francisco Afrânio Cunha
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará (UFC), Pici Campus, 12100, Fortaleza, CE 60451-970 Brazil
- Departament of Clinical and Toxicological Analysis, Federal University of Ceará (UFC), Capitão Francisco Pedro Street, 1210, Rodolfo Teófilo, Fortaleza, CE 60270-430 Brazil
| | - Tiago Melo Freire
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará (UFC), Pici Campus, 12100, Fortaleza, CE 60451-970 Brazil
| | - Fernando Lima de Menezes
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará (UFC), Pici Campus, 12100, Fortaleza, CE 60451-970 Brazil
| | - Lillian Maria Uchoa Dutra Fechine
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará (UFC), Pici Campus, 12100, Fortaleza, CE 60451-970 Brazil
| | - Janaina Sobreira Rocha
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará (UFC), Pici Campus, 12100, Fortaleza, CE 60451-970 Brazil
| | - Rita de Cássia Carvalho Barbosa
- Departament of Clinical and Toxicological Analysis, Federal University of Ceará (UFC), Capitão Francisco Pedro Street, 1210, Rodolfo Teófilo, Fortaleza, CE 60270-430 Brazil
| | - Roxeane Teles Martins
- Departament of Clinical and Toxicological Analysis, Federal University of Ceará (UFC), Capitão Francisco Pedro Street, 1210, Rodolfo Teófilo, Fortaleza, CE 60270-430 Brazil
| | | | - Ralph Santos-Oliveira
- Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rio de Janeiro, RJ 21941906 Brazil
- Laboratory of Nanoradiopharmacy and Strategic Biomaterials, Zona Oeste State University, Rio de Janeiro, RJ 220000 Brazil
| | | | - Pierre Basílio Almeida Fechine
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará (UFC), Pici Campus, 12100, Fortaleza, CE 60451-970 Brazil
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18
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Anwar A, Kanwal Q, Sadiqa A, Razaq T, Khan IH, Javaid A, Khan S, Tag-Eldin E, Ouladsmane M. Synthesis and Antimicrobial Analysis of High Surface Area Strontium-Substituted Calcium Phosphate Nanostructures for Bone Regeneration. Int J Mol Sci 2023; 24:14527. [PMID: 37833975 PMCID: PMC10572144 DOI: 10.3390/ijms241914527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/08/2023] [Accepted: 09/09/2023] [Indexed: 10/15/2023] Open
Abstract
Continuous microwave-assisted flow synthesis has been used as a simple, more efficient, and low-cost route to fabricate a range of nanosized (<100 nm) strontium-substituted calcium phosphates. In this study, fine nanopowder was synthesized via a continuous flow synthesis with microwave assistance from the solutions of calcium nitrate tetrahydrate (with strontium nitrate as Sr2+ ion source) and diammonium hydrogen phosphate at pH 10 with a time duration of 5 min. The morphological characterization of the obtained powder has been carried out by employing techniques such as transmission electron microscopy, X-ray diffraction, and Brunauer-Emmett-Teller surface area analysis. The chemical structural analysis to evaluate the surface properties was made by using X-ray photoelectron spectroscopy. Zeta potential analysis was performed to evaluate the colloidal stability of the particles. Antimicrobial studies were performed for all the compositions using four bacterial strains and an opportunistic human fungal pathogen Macrophomina phaseolina. It was found that the nanoproduct with high strontium content (15 wt% of strontium) showed pronounced antibacterial potential against M. luteus while it completely arrested the fungal growth after 48 h by all of its concentrations. Thus the synthesis strategy described herein facilitated the rapid production of nanosized Sr-substituted CaPs with excellent biological performance suitable for a bone replacement application.
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Affiliation(s)
- Aneela Anwar
- Department of Chemistry, University of Engineering and Technology, Lahore 54890, Pakistan
- Biomedical Engineering Department, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Qudsia Kanwal
- Department of Chemistry, The University of Lahore, Lahore 54590, Pakistan; (Q.K.); (A.S.)
| | - Ayesha Sadiqa
- Department of Chemistry, The University of Lahore, Lahore 54590, Pakistan; (Q.K.); (A.S.)
| | - Tabassam Razaq
- Institute of Microbiology and Molecular Genetics, University of the Punjab, Lahore 54590, Pakistan;
| | - Iqra Haider Khan
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan; (I.H.K.); (A.J.)
| | - Arshad Javaid
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan; (I.H.K.); (A.J.)
| | - Safia Khan
- Faculty of Engineering and Technology, Future University in Egypt, New Cairo 11835, Egypt;
| | - ElSayed Tag-Eldin
- Shandong Technology Centre of Nanodevices and Integration, School of Microelectronics, Shandong University, Jinan 250101, China
| | - Mohamed Ouladsmane
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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19
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Xuan Y, Zhang W, Zhu X, Zhang S. An updated overview of some factors that influence the biological effects of nanoparticles. Front Bioeng Biotechnol 2023; 11:1254861. [PMID: 37711450 PMCID: PMC10499358 DOI: 10.3389/fbioe.2023.1254861] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/18/2023] [Indexed: 09/16/2023] Open
Abstract
Nanoparticles (NPs) can be extremely effective in the early diagnosis and treatment of cancer due to their properties. The nanotechnology industry is developing rapidly. The number of multifunctional NPs has increased in the market and hundreds of NPs are in various stages of preclinical and clinical development. Thus, the mechanism underlying the effects of NPs on biological systems has received much attention. After NPs enter the body, they interact with plasma proteins, tumour cell receptors, and small biological molecules. This interaction is closely related to the size, shape, chemical composition and surface modification properties of NPs. In this review, the effects of the size, shape, chemical composition and surface modification of NPs on the biological effects of NPs were summarised, including the mechanism through which NPs enter cells, the resulting oxidative stress response, and the interaction with proteins. This review of the biological effects of NPs can not only provide theoretical support for the preparation of safer and more efficient NPs but also lay the foundation for their clinical application.
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Affiliation(s)
- Yang Xuan
- Key Laboratory of Biological Resources and Utilization of Ministry of Education, Dalian Minzu University, Dalian, Liaoning, China
| | - Wenliang Zhang
- Key Laboratory of Biological Resources and Utilization of Ministry of Education, Dalian Minzu University, Dalian, Liaoning, China
| | - Xinjiang Zhu
- Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Dalian, Liaoning, China
| | - Shubiao Zhang
- Key Laboratory of Biological Resources and Utilization of Ministry of Education, Dalian Minzu University, Dalian, Liaoning, China
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Hu L, Guo C, Chen J, Jia R, Sun Y, Cao S, Xiang P, Wang Y. Venturicidin A Is a Potential Fungicide for Controlling Fusarium Head Blight by Affecting Deoxynivalenol Biosynthesis, Toxisome Formation, and Mitochondrial Structure. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12440-12451. [PMID: 37566096 DOI: 10.1021/acs.jafc.3c02683] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Fusarium graminearum, which causes Fusarium head blight (FHB) in cereals, is one of the most devastating fungal diseases by causing great yield losses and mycotoxin contamination. A major bioactive ingredient, venturicidin A (VentA), was isolated from Streptomyces pratensis S10 mycelial extract with an activity-guided approach. No report is available on antifungal activity of VentA against F. graminearum and effects on deoxynivalenol (DON) biosynthesis. Here, VentA showed a high antagonistic activity toward F. graminearum with an EC50 value of 3.69 μg/mL. As observed by scanning electron microscopy, after exposure to VentA, F. graminearum conidia and mycelia appeared abnormal. Different dyes staining revealed that VentA increased cell membrane permeability. In growth chamber and field trials, VentA effectively reduced disease severity of FHB. Moreover, VentA inhibited DON biosynthesis by reducing pyruvic acid, acetyl-CoA production, and accumulation of reactive oxygen species (ROS) and then inhibiting trichothecene (TRI) genes expression and toxisome formation. These results suggest that VentA is a potential fungicide for controlling FHB.
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Affiliation(s)
- Lifang Hu
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Cong Guo
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Jing Chen
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Ruimin Jia
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Yan Sun
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Shang Cao
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Ping Xiang
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
- State Key Laboratory of Crop Stress Biology for Arid Areas, NWAFU Purdue Joint Research Center, Yangling, Shaanxi 712100, People's Republic of China
| | - Yang Wang
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
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21
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Hamida R, Ali MA, Mugren N, Al-Zaban MI, Bin-Meferij MM, Redhwan A. Planophila laetevirens-Mediated Synthesis of Silver Nanoparticles: Optimization, Characterization, and Anticancer and Antibacterial Potentials. ACS OMEGA 2023; 8:29169-29188. [PMID: 37599946 PMCID: PMC10433340 DOI: 10.1021/acsomega.3c02368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/17/2023] [Indexed: 08/22/2023]
Abstract
Algal-mediated synthesis of nanoparticles (NPs) opens the horizon for green and sustainable synthesis of NPs that can be used in many fields, such as medicine and industry. We extracellularly synthesized silver NPs (Ag-NPs) using the novel microalgae Planophila laetevirens under optimized conditions. The isolate was collected from freshwater/soil, purified, morphologically identified, and genetically identified using light, inverted light, scanning electron microscopy, and 18S rRNA sequencing. The phytochemicals in the algal extract were detected by GC-MS. Aqueous biomass extracts and cell-free media were used to reduce silver nitrate to Ag-NPs. To get small, uniformly shaped, and stable Ag-NPs, various abiotic parameters, including precursor concentration, the ratio between the reductant and precursor, temperature, time of temperature exposure, pH, illumination, and incubation time, were controlled during the synthesis of Ag-NPs. B-P@Ag-NPs and S-P@Ag-NPs (Ag-NPs synthesized using biomass and cell-free medium, respectively) were characterized using UV-vis spectroscopy, transmission electron microscopy, scanning electron microscopy, energy-dispersive X-ray analysis (EDX) and mapping, Fourier transform infrared (FTIR) spectroscopy, and a zeta sizer. S-P@Ag-NPs had a smaller size (10.8 ± 0.3 nm) than B-P@Ag-NPs (19.0 ± 0.6 nm), while their shapes were uniform quasispherical (S-P@Ag-NPs) and spherical to oval (B-P@Ag-NPs). EDX and mapping analyses demonstrated that Ag was the dominant element in the B-P@Ag-NP and S-P@Ag-NP samples, while FTIR revealed the presence of O-H, C-H, N-H, and C-O groups, indicating that polysaccharides and proteins acted as reductants, while polysaccharides/fatty acids acted as stabilizers during the synthesis of NPs. The hydrodynamic diameters of B-P@Ag-NPs and S-P@Ag-NPs were 37.7 and 28.3 nm, respectively, with negative charges on their surfaces, suggesting their colloidal stability. Anticancer activities against colon cancer (Sw620 and HT-29 cells), breast cancer (MDA-MB231 and MCF-7 cells), and normal human fibroblasts (HFs) were screened using the MTT assay. B-P@Ag-NPs and S-P@Ag-NPs had a greater antiproliferative effect against colon cancer than against breast cancer, with biocompatibility against HFs. The biocidal effects of the B-P@Ag-NPs and S-P@Ag-NPs were evaluated against Escherichia coli, Bacillus cereus, and Bacillus subtilis using agar well diffusion and resazurin dye assays. B-P@Ag-NPs and S-P@Ag-NPs caused higher growth inhibition of Gram-negative bacteria than of Gram-positive bacteria. B-P@Ag-NPs and S-P@Ag-NPs synthesized by P. laetevirens are promising antitumor and biocidal agents.
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Affiliation(s)
| | - Mohamed Abdelaal Ali
- Plant
Production Department, Arid Lands Cultivation
Research Institute, City of Scientific Research and Technological
Applications (SRTA-CITY) New Borg El-Arab, Alexandria 21934, Egypt
| | - Njoud Mugren
- Graduated
Student, Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Mayasar Ibrahim Al-Zaban
- Department
of Biology, College of Science, Princess
Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Mashael Mohammed Bin-Meferij
- Department
of Biology, College of Science, Princess
Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Alya Redhwan
- Department
of Heath, College of Health, and Rehabilitation Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
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22
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Piecuch A, Targońska S, Rewak-Sorczyńska J, Ogórek R, Wiglusz RJ. New silicate-substituted hydroxyapatite materials doped with silver ions as potential antifungal agents. BMC Microbiol 2023; 23:193. [PMID: 37464289 PMCID: PMC10353133 DOI: 10.1186/s12866-023-02930-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/03/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND Hydroxyapatites (HAp) are widely used as medical preparations for e.g., bone replacement or teeth implants. Incorporation of various substrates into HAp structures could enhance its biological properties, like biocompatibility or antimicrobial effects. Silver ions possess high antibacterial and antifungal activity and its application as HAp dopant might increase its clinical value. RESULTS New silicate-substituted hydroxyapatites (HAp) doped with silver ions were synthesized via hydrothermal methods. The crystal structure of HAp was investigated by using the X-ray powder diffraction. Antifungal activity of silver ion-doped HAp (with 0.7 mol%, 1 mol% and 2 mol% of dopants) was tested against the yeast-like reference and clinical strains of Candida albicans, C. glabrata, C. tropicalis, Rhodotorula rubra, R. mucilaginosa, Cryptococcus neoformans and C. gattii. Spectrophotometric method was used to evaluate antifungal effect of HAp in SD medium. It was shown that already the lowest dopant (0.7 mol% of Ag+ ions) significantly reduced fungal growth at the concentration of 100 µg/mL. Increase in the dopant content and the concentration of HAp did not cause further growth inhibition. Moreover, there were some differences at the tolerance level to Ag+ ion-doped HAp among tested strains, suggesting strain-specific activity. CONCLUSIONS Preformed studies confirm antimicrobial potential of hydroxyapatite doped with silver. New Ag+ ion-HAp material could be, after further studies, considered as medical agent with antifungal properties which lower the risk of a surgical-related infections.
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Affiliation(s)
- Agata Piecuch
- Department of Mycology and Genetics, University of Wrocław, Przybyszewskiego 63/77, Wroclaw, 51-148, Poland.
| | - Sara Targońska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland
| | - Justyna Rewak-Sorczyńska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland
| | - Rafał Ogórek
- Department of Mycology and Genetics, University of Wrocław, Przybyszewskiego 63/77, Wroclaw, 51-148, Poland
| | - Rafal J Wiglusz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland.
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23
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Lyagin I, Aslanli A, Domnin M, Stepanov N, Senko O, Maslova O, Efremenko E. Metal Nanomaterials and Hydrolytic Enzyme-Based Formulations for Improved Antifungal Activity. Int J Mol Sci 2023; 24:11359. [PMID: 37511117 PMCID: PMC10379199 DOI: 10.3390/ijms241411359] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Active research of metal-containing compounds and enzymes as effective antifungal agents is currently being conducted due to the growing antifungal resistance problem. Metals are attracting special attention due to the wide variety of ligands that can be used for them, including chemically synthesized and naturally obtained variants as a result of the so-called "green synthesis". The main mechanism of the antifungal action of metals is the triggering of the generation and accumulation of reactive oxygen species (ROS). Further action of ROS on various biomolecules is nonspecific. Various hydrolytic enzymes (glucanases and proteases), in turn, exhibit antifungal properties by affecting the structural elements of fungal cells (cell walls, membranes), fungal quorum sensing molecules, fungal own protective agents (mycotoxins and antibiotics), and proteins responsible for the adhesion and formation of stable, highly concentrated populations in the form of biofilms. A wide substrate range of enzymes allows the use of various mechanisms of their antifungal actions. In this review, we discuss the prospects of combining two different types of antifungal agents (metals and enzymes) against mycelial fungi and yeast cells. Special attention is paid to the possible influence of metals on the activity of the enzymes and the possible effects of proteins on the antifungal activity of metal-containing compounds.
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Affiliation(s)
- Ilya Lyagin
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Aysel Aslanli
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Maksim Domnin
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Nikolay Stepanov
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Olga Senko
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Olga Maslova
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
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24
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Matras E, Gorczyca A, Pociecha E, Przemieniecki SW, Zeliszewska P, Ocwieja M. Silver nanoparticles affect wheat ( Triticum aestivum L.) germination, seedling blight and yield. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:390-406. [PMID: 36944476 DOI: 10.1071/fp22086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 02/28/2023] [Indexed: 05/03/2023]
Abstract
The aim of the study was to evaluate the effect of two types of negatively charged quasi-spherical silver nanoparticles (AgNPs) at concentrations of 10, 20 and 30mgL-1 and silver ions at a concentration of 30mgL-1 on the growth, selected physiological aspects and yielding of wheat (Triticum aestivum L.) cv. Tybalt, and on plant resistance to seedling blight. Seed germination, α-amylase activity in seeds, morphology and infestation of seedlings by pathogens were assessed in a hydroponic treatment. Growth rate, PSII efficiency, heading and yield of the same plants were then analysed in pot culture. Results showed that the AgNPs and silver ions had a negative effect on roots, but reduced seedling blight and improved leaf area compared to the control. In addition, the AgNPs reduced with sodium borohydride in the presence of trisodium citrate at concentrations of 10 and 20mgL-1 stimulated germination, α-amylase activity and shoot length, which was not observed in the case of silver ions and the AgNPs reduced with sodium hypophosphite in the presence of sodium hexametaphosphate. In a pot experiment, the AgNPs improved plant growth, PSII efficiency, accelerated heading and increased yield-related parameters compared with the control. Results revealed the interaction strength in the following order: TCSB-AgNPs>SHSH-AgNPs>silver ions. TCSB-AgNPs in the lowest concentration had the most favourable effect, indicating their great potential for use in improving wheat cultivation.
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Affiliation(s)
- Ewelina Matras
- Department of Microbiology and Biomonitoring, Faculty of Agriculture and Economics, University of Agriculture in Krakow, Mickiewicz Avenue 21, 31-120 Krakow, Poland
| | - Anna Gorczyca
- Department of Microbiology and Biomonitoring, Faculty of Agriculture and Economics, University of Agriculture in Krakow, Mickiewicz Avenue 21, 31-120 Krakow, Poland
| | - Ewa Pociecha
- Department of Plant Breeding, Physiology and Seed Science, Faculty of Agriculture and Economics, University of Agriculture in Krakow, Podluzna 3, 30-239 Krakow, Poland
| | - Sebastian Wojciech Przemieniecki
- Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Prawochenskiego 17, 10-720 Olsztyn, Poland
| | - Paulina Zeliszewska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| | - Magdalena Ocwieja
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
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25
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UDP-Galactopyranose Mutase Mediates Cell Wall Integrity, Polarity Growth, and Virulence in Fusarium graminearum. Appl Environ Microbiol 2023; 89:e0123522. [PMID: 36656025 PMCID: PMC9972967 DOI: 10.1128/aem.01235-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
CHY1 is a zinc finger protein unique to microorganisms that was found to regulate polarized tip growth in Fusarium graminearum, an important pathogen of wheat and barley. To further characterize its functions, in this study we identified CHY1-interacting proteins by affinity purification and selected UDP-galactofuranose (Galf) mutase (UGMA) for detailed characterization, because UGMA and UDP-Galf are unique to fungi and bacteria and absent in plants and animals. The interaction between CHY1 and UGMA was confirmed by yeast two-hybrid assays. Deletion of UGMA in F. graminearum resulted in significant defects in vegetative growth, reproduction, cell wall integrity, and pathogenicity. Infection with the ΔugmA mutant was restricted to the inoculated floret, and no vomitoxin was detected in kernels inoculated with the ΔugmA strain. Compared to the wild type, the ΔugmA mutant produced wide, highly branched hyphae with thick walls, as visualized by transmission electron microscopy. UGMA tagged with green fluorescent protein (GFP) mainly localized to the cytoplasm, consistent with the synthesis of Galf in the cytoplasm. The Δchy1 mutant was more sensitive, while the ΔugmA mutant was more tolerant, to cell wall-degrading enzymes. The growth of the ΔugmA mutant nearly ceased upon caspofungin treatment. More interestingly, nocodazole treatment of the ΔugmA strain attenuated its highly branched morphology, while caspofungin inhibited the degree of the twisted Δchy1 mycelia, indicating that CHY1 and UGMA probably have opposite effects on cell wall architecture. In conclusion, UGMA is an important pathogenic factor that is specific to fungi and bacteria and required for cell wall architecture, radial growth, and caspofungin tolerance, and it appears to be a promising target for antifungal agent development. IMPORTANCE The long-term use of chemical pesticides has had increasingly negative impacts on the ecological environment and human health. Low-toxicity, high-efficiency and environmentally friendly alternative pesticides are of great significance for maintaining the sustainable development of agriculture and human and environmental health. Using fungus- or microbe-specific genes as candidate targets provides a good foundation for the development of low-toxicity, environmentally friendly pesticides. In this study, we characterized a fungus- and bacterium-specific UDP-galactopyranose mutase gene, ugmA, that contributes to the synthesis of the cell wall component Galf and is required for vegetative growth, cell wall integrity, deoxynivalenol (DON) production, and pathogenicity in F. graminearum. The ugmA deletion mutant exhibited increased sensitivity to caspofungin. These results demonstrate the functional importance of UGMA in F. graminearum, and its absence from mammals and higher plants constitutes a considerable advantage as a low-toxicity target for the development of new anti-Fusarium agents.
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Liu X, Wang S, Fan Z, Wu J, Wang L, He D, Mohamed SR, Dawood DH, Shi J, Gao T, Xu J. Antifungal activities of metconazole against the emerging wheat pathogen Fusarium pseudograminearum. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 190:105298. [PMID: 36740330 DOI: 10.1016/j.pestbp.2022.105298] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 06/18/2023]
Abstract
Fusarium crown rot of wheat is a serious fungal disease that occurs worldwide. The disease has been emerging in the major wheat-growing areas in China since 2010. Fusarium pseudogramineaum is the predominant causative pathogen of crown rot of wheat in China. The 14α-demethylation inhibitor (DMI) fungicide metconazole has been shown to be effective against Fusarium spp., but little is known about its specific activity against F. pseudogramineaum. Metconazole exhibited strong antifungal activities against all thirty-nine F. pseudogramineaum strains collected from the major wheat-growing areas in China. Metconazole inhibited mycelial growth and conidial germ tube elongation of F. pseudograminearum. Metconazole treatment significantly reduced the production of major toxins and the expression levels of toxin biosynthesis genes. Genome-wide transcriptional profiling of F. pseudograminearum in response to metconazole indicated that the expression of genes involved in ergosterol biosynthesis, including fungicide target genes (cyp51 genes), was significantly induced by metconazole. Nine ATP-binding cassette (ABC) transporter-encoding genes were significantly expressed in response to metconazole treatment. Reduced ergosterol production and antioxidant enzyme activities were observed after metconazole treatment. Greenhouse experiments indicated a significant reduction in crown rot occurrence in wheat after seed treatment with metconazole. This study evaluated the potential of metconazole to manage wheat crown rot and provides information to understand its antifungal activities and mechanism of action against F. pseudograminearum.
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Affiliation(s)
- Xin Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Key Laboratory for Agro-product Safety Risk Evaluation (Nanjing), Ministry of Agriculture and Rural Affairs/Collaborative Innovation Center for Modern Grain Circulation and Safety/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, PR China
| | - Shuang Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Key Laboratory for Agro-product Safety Risk Evaluation (Nanjing), Ministry of Agriculture and Rural Affairs/Collaborative Innovation Center for Modern Grain Circulation and Safety/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, PR China
| | - Zhongyue Fan
- College of Life Science, Sanquan College of Xinxiang Medical University, Xinxiang 453003, Henan, PR China
| | - Jiawen Wu
- Jiangsu Plant Protection and Plant Quarantine Station, Nanjing 210036, Jiangsu, PR China
| | - Liwen Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Key Laboratory for Agro-product Safety Risk Evaluation (Nanjing), Ministry of Agriculture and Rural Affairs/Collaborative Innovation Center for Modern Grain Circulation and Safety/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, PR China
| | - Dan He
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Key Laboratory for Agro-product Safety Risk Evaluation (Nanjing), Ministry of Agriculture and Rural Affairs/Collaborative Innovation Center for Modern Grain Circulation and Safety/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, PR China
| | - Sherif Ramzy Mohamed
- Food Toxicology and Contaminants Dept., National Research Centre, Egypt, Giza 12411, Egypt
| | - Dawood H Dawood
- Department of Agriculture Chemistry, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | - Jianrong Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Key Laboratory for Agro-product Safety Risk Evaluation (Nanjing), Ministry of Agriculture and Rural Affairs/Collaborative Innovation Center for Modern Grain Circulation and Safety/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, PR China
| | - Tao Gao
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Key Laboratory for Agro-product Safety Risk Evaluation (Nanjing), Ministry of Agriculture and Rural Affairs/Collaborative Innovation Center for Modern Grain Circulation and Safety/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, PR China.
| | - Jianhong Xu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Key Laboratory for Agro-product Safety Risk Evaluation (Nanjing), Ministry of Agriculture and Rural Affairs/Collaborative Innovation Center for Modern Grain Circulation and Safety/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, PR China.
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Shan Y, Li T, Qu H, Duan X, Farag MA, Xiao J, Gao H, Jiang Y. Nano‐preservation: An emerging postharvest technology for quality maintenance and shelf life extension of fresh fruit and vegetable. FOOD FRONTIERS 2023. [DOI: 10.1002/fft2.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Youxia Shan
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences Guangzhou China
| | - Taotao Li
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences Guangzhou China
| | - Hongxia Qu
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences Guangzhou China
| | - Xuewu Duan
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences Guangzhou China
| | - Mohamed A. Farag
- Pharmacognosy Department, College of Pharmacy Cairo University Giza Egypt
| | - Jianbo Xiao
- Department of Analytical and Food Chemistry, Faculty of Sciences Universidade de Vigo Vigo Spain
| | - Haiyan Gao
- Key Laboratory of Postharvest Handing of Fruits of Ministry of Agriculture and Rural Affairs, Food Science Institute Zhejiang Academy of Agricultural Sciences Hangzhou China
| | - Yueming Jiang
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences Guangzhou China
- College of Advanced Agricultural Sciences University of Chinese Academy of Sciences Beijing China
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28
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Antifungal activity and inhibitory mechanisms of ferulic acid against the growth of Fusarium graminearum. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Wen H, Shi H, Jiang N, Qiu J, Lin F, Kou Y. Antifungal mechanisms of silver nanoparticles on mycotoxin producing rice false smut fungus. iScience 2022; 26:105763. [PMID: 36582831 PMCID: PMC9793317 DOI: 10.1016/j.isci.2022.105763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 11/03/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Ustilaginoidea virens, which causes rice false smut disease, is a destructive filamentous fungal pathogen, attracting more attention to search for effective fungicides against U. virens. Here, the results showed that the inhibition of 2 nm AgNPs on U. virens growth and virulence displayed concentration-dependent manner. Abnormalities of fungal morphology were observed upon exposure to AgNPs. RNA-sequencing (RNA-seq) analysis revealed that AgNPs treatment up-regulated 1185 genes and down-regulated 937 genes, which significantly overlapped with the methyltransferase UvKmt6-regulated genes. Furthermore, we found that AgNPs reduced the UvKmt6-mediated H3K27me3 modification, resulting in the up-regulation of ustilaginoidin biosynthetic genes The decrease of H3K27me3 level was associated with the inhibition of mycelial growth by AgNPs treatment. These results suggested that AgNPs are an effective nano-fungicide for the control of rice false smut disease, but when using AgNPs, it needs to be combined with mycotoxin-reducing fungicides to reduce the risk of toxin pollution.
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Affiliation(s)
- Hui Wen
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China
| | - Huanbin Shi
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China
| | - Nan Jiang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China
| | - Jiehua Qiu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China
| | - Fucheng Lin
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yanjun Kou
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China
- Corresponding author
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Periakaruppan R, Palanimuthu V, Abed SA, Danaraj J. New perception about the use of nanofungicides in sustainable agriculture practices. Arch Microbiol 2022; 205:4. [PMID: 36441298 DOI: 10.1007/s00203-022-03324-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/21/2022] [Accepted: 11/07/2022] [Indexed: 11/29/2022]
Abstract
Protecting plants from pathogens using synthetic nanofungicides is not very effective, because it is harmful to the environment. However, it is synthetic fungicides that farmers are familiar with and commonly use. In this modern era, nanotechnology offers a smart solution to environmental issues at the nanoscale level. It is an emergent field and nanoparticles can be synthesized through various methods. Nanofungicides are efficient due to their solubility and permeability, low dose-dependent toxicity, low dose, enhanced bioavailability, targeted delivery, enhanced bioavailability, and controlled release. There are many metallic compounds, such as Cu, Zn, Ag, and TiO2 available which are used as nanofungicides. There is a contrary relationship between the size of the nanoparticles and their efficacy and antifungal potential. This review article offers a wide knowledge about formulation of nanomaterials as nanofungicides and their role in disease management in plants.
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Affiliation(s)
- Rajiv Periakaruppan
- Department of Biotechnology, Karpagam Academy of Higher Education, Eachanari, Coimbatore, 641021, India.
| | - Vanathi Palanimuthu
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, Tamilnadu, India
| | - Salwan Ali Abed
- College of Science, University of Al-Qadisiyah, Al Diwaniyah, Iraq
| | - Jeyapragash Danaraj
- Centre for Ocean Research (DST-FIST Sponsored Centre), MoES-Earth Science and Technology Cell (Marine Biotechnological Studies), Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Chennai, 600119, India
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31
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Vera-Reyes I, Altamirano-Hernández J, Reyes-de la Cruz H, Granados-Echegoyen CA, Loera-Alvarado G, López-López A, Garcia-Cerda LA, Loera-Alvarado E. Inhibition of Phytopathogenic and Beneficial Fungi Applying Silver Nanoparticles In Vitro. Molecules 2022; 27:molecules27238147. [PMID: 36500239 PMCID: PMC9738576 DOI: 10.3390/molecules27238147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/11/2022] [Accepted: 11/15/2022] [Indexed: 11/25/2022] Open
Abstract
In the current research, our work measured the effect of silver nanoparticles (AgNP) synthesized from Larrea tridentata (Sessé and Moc. ex DC.) on the mycelial growth and morphological changes in mycelia from different phytopathogenic and beneficial fungi. The assessment was conducted in Petri dishes, with Potato-Dextrose-Agar (PDA) as the culture medium; the AgNP concentrations used were 0, 60, 90, and 120 ppm. Alternaria solani and Botrytis cinerea showed the maximum growth inhibition at 60 ppm (70.76% and 51.75%). Likewise, Macrophomina spp. required 120 ppm of AgNP to achieve 65.43%, while Fusarium oxisporum was less susceptible, reaching an inhibition of 39.04% at the same concentration. The effect of silver nanoparticles was inconspicuous in Pestalotia spp., Colletotrichum gloesporoides, Phytophthora cinnamomi, Beauveria bassiana, Metarhizium anisopliae, and Trichoderma viridae fungi. The changes observed in the morphology of the fungi treated with nanoparticles were loss of definition, turgidity, and constriction sites that cause aggregations of mycelium, dispersion of spores, and reduced mycelium growth. AgNP could be a sustainable alternative to managing diseases caused by Alternaria solani and Macrophomina spp.
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Affiliation(s)
- Ileana Vera-Reyes
- CONACYT-Centro de Investigación en Química Aplicada, Depto. de Biociencias y Agrotecnología. Blvd, Enrique Reyna H. 140, Saltillo C.P. 25294, Coahuila, Mexico
| | - Josué Altamirano-Hernández
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Avenida Francisco J. Múgica S/N Ciudad Universitaria, Morelia C.P. 58030, Michoacán, Mexico
| | - Homero Reyes-de la Cruz
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Avenida Francisco J. Múgica S/N Ciudad Universitaria, Morelia C.P. 58030, Michoacán, Mexico
| | - Carlos A. Granados-Echegoyen
- CONACYT-Universidad Autónoma de Campeche, Centro de Estudios en Desarrollo Sustentable y Aprovechamiento de la Vida Silvestre (CEDESU), Av. Agustín Melgar, Colonia Buenavista, San Francisco de Campeche C.P. 24039, Campeche, Mexico
| | - Gerardo Loera-Alvarado
- Colegio de Postgraduados, Campus San Luis Potosí, Innovación en Manejo de Recursos Naturales, Iturbide 73, Salinas de Hidalgo C.P. 78600, San Luis Potosí, Mexico
| | - Abimael López-López
- Tecnológico Nacional de México, Campus Instituto Tecnológico de la Zona Maya, Carretera Chetumal-Escárcena, Km. 21.5, Ejido Juan Sarabia C.P. 77965, Quintana Roo, Mexico
| | - Luis A. Garcia-Cerda
- Centro de Investigación en Química Aplicada, Depto. Materiales Avanzados. Blvd, Enrique Reyna H. 140, San José de los Cerritos, Saltillo C.P. 25294, Coahuila, Mexico
| | - Esperanza Loera-Alvarado
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Avenida Francisco J. Múgica S/N Ciudad Universitaria, Morelia C.P. 58030, Michoacán, Mexico
- CONACYT-Universidad Michoacana de San Nicolás de Hidalgo, Avenida Francisco J. Múgica S/N Ciudad Universitaria, Morelia C.P. 58030, Michoacán, Mexico
- Correspondence:
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Dhaka A, Raj S, Githala CK, Chand Mali S, Trivedi R. Balanites aegyptiaca leaf extract-mediated synthesis of silver nanoparticles and their catalytic dye degradation and antifungal efficacy. Front Bioeng Biotechnol 2022; 10:977101. [PMID: 36267455 PMCID: PMC9576921 DOI: 10.3389/fbioe.2022.977101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/02/2022] [Indexed: 12/04/2022] Open
Abstract
This study describes the biosynthesis of silver nanoparticles (AgNPs) using Balanites aegyptiaca (B. aegyptiaca) leaf extract. The biosynthesized AgNPs were characterized by UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM) and scanning electron microscopy with (SEM-EDS). The AgNPs showed an average size of 10–20 nm, spherical shape, and crystalline nature. The application of these synthesized AgNPs to dye degradation showed that the AgNPs removed the two organic pollutants methylene blue (MB, 93.47%) and congo red (CR, (78.57%). In vitro investigation of the antifungal activity of the AgNPs against Fusarium oxysporum, a phytopathogenic fungus, showed a maximum percent radial growth inhibition of 82.00 ± 1.00% and a spore percent inhibition of 73.66 ± 3.94 for 150 μg/ml of biosynthesized AgNPs.
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Affiliation(s)
| | - Shani Raj
- *Correspondence: Shani Raj, ; Rohini Trivedi,
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Malandrakis AA, Kavroulakis N, Chrysikopoulos CV. Metal nanoparticles against fungicide resistance: alternatives or partners? PEST MANAGEMENT SCIENCE 2022; 78:3953-3956. [PMID: 35620887 DOI: 10.1002/ps.7014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Chemical control suffers from the loss of available conventional active ingredients due to strict environmental safety regulations which, combined with the loss of fungicide efficacy due to resistance development, constitute major problems of contemporary crop protection. Metal-containing nanoparticles (MNPs) appear to have all the credentials to be next-generation, eco-compatible fungicide alternatives and a valuable anti-resistance management tool. Could the introduction of MNPs as nano-fungicides be the answer to both reducing the environmental footprint of xenobiotics and dealing with fungicide resistance? The potential of MNPs to be utilized as nano-fungicides, both as alternatives to conventional fungicides or/and as partners in combating fungicide resistance, is discussed in terms of effectiveness, potential antimicrobial mechanisms as well as synergy profiles with conventional fungicides. However, their "golden" potential to be used both as alternatives and partners of conventional fungicides to combat resistance and reduce environmental pollution is challenged by undesirable effects towards non-target organisms such as phytotoxicity, toxicity to humans and environmental ecotoxicity, constituting risks that should be considered before their commercial introduction as nano-pesticides at a large scale. © 2022 Society of Chemical Industry.
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Affiliation(s)
| | - Nektarios Kavroulakis
- Hellenic Agricultural Organization "Dimitra", Institute for Olive Tree, Subtropical Plants and Viticulture, Chania, Greece
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Githala CK, Raj S, Dhaka A, Mali SC, Trivedi R. Phyto-fabrication of silver nanoparticles and their catalytic dye degradation and antifungal efficacy. Front Chem 2022; 10:994721. [PMID: 36226117 PMCID: PMC9548708 DOI: 10.3389/fchem.2022.994721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
The biogenic synthesis of silver nanoparticles (AgNPs) and their potent application against dye degradation and phytopathogens are attracting many scientists to nanotechnology. An attempt was made to synthesize silver nanoparticles using Plantago ovata leaf extract and test their effectiveness in removing organic dyes and antifungal activity. In the present study, stable AgNPs were synthesized from 0.1 mM AgNO3 and authenticated by observing the color change from yellow to red-brown, which was confirmed with wavelength UV-Vis spectrophotometer detection. The crystalline nature of the particles was characterized by x-ray diffraction (XRD) patterns. Furthermore, the AgNPs were characterized by high-resolution transmission electron microscope and scanning electron microscope investigations. Atomic force microscopy (AFM) and Raman spectra were also used to confirm the size and structure of the synthesized AgNPs. The elemental analysis and functional groups responsible for the reduction of AgNPs were analyzed by electron dispersive spectroscopy and fourier transform infra-red spectroscopy Fourier transforms infrared, respectively. A new biological approach was taken by breaking down organic dyes such as methylene blue and congo red. The AgNPs effectively inhibit the fungal growth of Alternaria alternata. This could be a significant achievement in the fight against many dynamic pathogens and reduce dye contamination from waste water.
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Affiliation(s)
| | - Shani Raj
- *Correspondence: Shani Raj, ; Rohini Trivedi,
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Ahmad M, Ali A, Ullah Z, Sher H, Dai DQ, Ali M, Iqbal J, Zahoor M, Ali I. Biosynthesized silver nanoparticles using Polygonatum geminiflorum efficiently control fusarium wilt disease of tomato. Front Bioeng Biotechnol 2022; 10:988607. [PMID: 36159677 PMCID: PMC9493356 DOI: 10.3389/fbioe.2022.988607] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Nanomaterials are gaining tremendous potential as emerging antimicrobials in the quest to find resistance-free alternatives of chemical pesticides. In this study, stable silver nanoparticles were synthesized using the aqueous extract of medicinal plant species Polygonatum geminiflorum, and their morphological features were evaluated by transmission electron microscopy, X-ray diffraction spectroscopy and energy dispersive X-ray analysis. In vitro Antifungal activity of the synthesized silver nanoparticles (AgNPs) and P. geminiflorum extract (PE) either alone or in combination (PE-AgNPs) against Fusarium oxysporum was evaluated using disc-diffusion and well-diffusion methods. In planta assay of the same treatments against Fusarium wilt diseases of tomato was evaluated by foliar spray method. Moreover, plant extract was evaluated for the quantitative investigation of antioxidant activity, phenolics and flavonoids by spectroscopic and HPLC techniques. Phytochemical analysis indicated the presence of total phenolic and flavonoid contents as 48.32 mg ± 1.54 mg GAE/g and 57.08 mg ± 1.36 mg QE/g, respectively. The DPPH radical scavenging of leaf extract was found to be 88.23% ± 0.87%. Besides, the HPLC phenolic profile showed the presence of 15 bioactive phenolic compounds. Characterization of nanoparticles revealed the size ranging from 8 nm to 34 nm with average crystallite size of 27 nm. The FTIR analysis revealed important functional groups that were responsible for the reduction and stabilization of AgNPs. In the in vitro assays, 100 μg/ml of AgNPs and AgNPs-PE strongly inhibited Fusarium oxysporum. The same treatments tested against Fusarium sprayed on tomato plants in controlled environment exhibited nearly 100% plant survival with no observable phytotoxicity. These finding provide a simple baseline to control Fusarium wilt using silver nano bio-control agents without affecting the crop health.
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Affiliation(s)
- Maaz Ahmad
- Center for Yunnan Plateau Biological Resources Protection and Utilization, Yunnan Engineering Research Center of Fruit Wine, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan, China
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
| | - Ahmad Ali
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
| | - Zahid Ullah
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
| | - Hassan Sher
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
| | - Dong-Qin Dai
- Center for Yunnan Plateau Biological Resources Protection and Utilization, Yunnan Engineering Research Center of Fruit Wine, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan, China
- *Correspondence: Iftikhar Ali, ; Dong-Qin Dai,
| | - Mohammad Ali
- Centre for Biotechnology and Microbiology, University of Swat, Charbagh, Swat, Pakistan
| | - Javed Iqbal
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Zahoor
- Department of Biochemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Iftikhar Ali
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh, Swat, Pakistan
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- *Correspondence: Iftikhar Ali, ; Dong-Qin Dai,
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Zhang XF, Li QY, Wang M, Ma SQ, Zheng YF, Li YQ, Zhao DL, Zhang CS. 2 E,4 E-Decadienoic Acid, a Novel Anti-Oomycete Agent from Coculture of Bacillus subtilis and Trichoderma asperellum. Microbiol Spectr 2022; 10:e0154222. [PMID: 35943267 PMCID: PMC9430527 DOI: 10.1128/spectrum.01542-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/22/2022] [Indexed: 11/20/2022] Open
Abstract
Phytophthora nicotianae is an oomycete pathogen of global significance threatening many important crops. It is mainly controlled by chemosynthetic fungicides, which endangers ecosystem and human health; thus, there is an urgent need to explore alternatives for these fungicides. In this study, a new anti-oomycete aliphatic compound, 2E,4E-decadienoic acid (DDA), was obtained through coculture of Bacillus subtilis Tpb55 and Trichoderma asperellum HG1. Both in vitro and in vivo tests showed that DDA had a strong inhibitory effect against P. nicotianae. In addition, rhizosphere microbiome analysis showed that DDA reduced the relative abundance of Oomycota in rhizosphere soil. Transcriptome sequencing (RNA-Seq) analysis revealed that treatment of P. nicotianae with DDA resulted in significant downregulation of antioxidant activity and energy metabolism, including antioxidant enzymes and ATP generation, and upregulation of membrane-destabilizing activity, such as phospholipid synthesis and degradation. The metabolomic analysis results implied that the pathways influenced by DDA were mainly related to carbohydrate metabolism, energy metabolism, and the cell membrane. The biophysical tests further indicated that DDA produced oxidative stress on P. nicotianae, inhibited antioxidant enzyme and ATPase activity, and increased cell membrane permeability. Overall, DDA exerts inhibitory activity by acting on multiple targets in P. nicotianae, especially on the cell membrane and mitochondria, and can therefore serve as a novel environment-friendly agent for controlling crop oomycete disease. IMPORTANCE P. nicotianae is an oomycete pathogen that is destructive to crops. Although some oomycete inhibitors have been used during crop production, most are harmful to the ecology and lead to pathogen resistance. Alternatively, medium-chain fatty acids have been reported to exhibit antimicrobial activity in the medical field in previous studies; however, their potential as biocontrol agents has rarely been evaluated. Our in vivo and in vitro analyses revealed that the medium-chain fatty acid 2E,4E-decadienoic acid (DDA) displayed specific inhibitory activity against oomycetes. Further analysis indicated that DDA may acted on multiple targets in P. nicotianae, especially on the cell membrane and mitochondria. Our findings highlight the potential of DDA in controlling oomycete diseases. In conclusion, these results provide insights regarding the future use of green and environment-friendly anti-oomycete natural products for the prevention and control of crop oomycete diseases.
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Affiliation(s)
- Xi-Fen Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, People’s Republic of China
| | - Qing-Yu Li
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, People’s Republic of China
| | - Mei Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, People’s Republic of China
| | - Si-Qi Ma
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, People’s Republic of China
| | - Yan-Fen Zheng
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, People’s Republic of China
| | - Yi-Qiang Li
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, People’s Republic of China
| | - Dong-Lin Zhao
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, People’s Republic of China
| | - Cheng-Sheng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, People’s Republic of China
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Li L, Pan H, Deng L, Qian G, Wang Z, Li W, Zhong C. The antifungal activity and mechanism of silver nanoparticles against four pathogens causing kiwifruit post-harvest rot. Front Microbiol 2022; 13:988633. [PMID: 36118196 PMCID: PMC9471003 DOI: 10.3389/fmicb.2022.988633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Abstract
Post-harvest rot causes enormous economic loss to the global kiwifruit industry. Currently, there are no effective fungicides to combat the disease. It is unclear whether silver nanoparticles (AgNPs) are effective in controlling post-harvest rot and, if so, what the underlying antifungal mechanism is. Our results indicated that 75 ppm AgNPs effectively inhibited the mycelial growth and spore germination of four kiwifruit rot pathogens: Alternaria alternata, Pestalotiopsis microspora, Diaporthe actinidiae, and Botryosphaeria dothidea. Additionally, AgNPs increased the permeability of mycelium’s cell membrane, indicating the leakage of intracellular substance. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations revealed that AgNPs induced pathogen hypha shrinkage and distortion, as well as vacuolation in hypha cells, implying that AgNPs caused cellular and organelle structural degradation. The transcriptome sequencing of mycelium treated with AgNPs (24 h / 48 h) was performed on the Illumina Hiseq 4000 sequencing (RNA-Seq) platform. For the time points of 24 h and 48 h, AgNPs treatment resulted in 1,178 and 1,461 differentially expressed genes (DEGs) of A. alternata, 517 and 91 DEGs of P. microspora, 1,287 and 65 DEGs of D. actinidiae, 239 and 55 DEGs of B. dothidea, respectively. The DEGs were found to be involved in “catalytic activity,” “small molecule binding,” “metal ion binding,” “transporter activity,” “cellular component organization,” “protein metabolic process,” “carbohydrate metabolic process,” and “establishment of localization.” Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis also revealed that “carbohydrate metabolism,” “amino acid metabolism,” “energy metabolism,” and “xenobiotics biodegradation and metabolism” of “metabolism processes” were the most highly enriched pathways for these DEGs in four pathogens, with “cellular processes” being particularly enriched for B. dothidea. Furthermore, quantitative polymerase chain reactions (qPCRs) were used to validate the RNA-seq results. It was also confirmed that AgNPs could significantly reduce the symptoms of kiwifruit rot without leaving any Ag+ residue on the peel and flesh of kiwifruit. Our findings contributed to a better understanding of the antifungal effect and molecular mechanisms of AgNPs against pathogens causing kiwifruit post-harvest rot, as well as a new perspective on the application of this novel antifungal alternative to fruit disease control.
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Affiliation(s)
- Li Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Engineering Laboratory for Kiwifruit Industrial Technology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
| | - Hui Pan
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Engineering Laboratory for Kiwifruit Industrial Technology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
| | - Lei Deng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Engineering Laboratory for Kiwifruit Industrial Technology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
| | - Guoliang Qian
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Zupeng Wang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Engineering Laboratory for Kiwifruit Industrial Technology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
| | - Wenyi Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Engineering Laboratory for Kiwifruit Industrial Technology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
| | - Caihong Zhong
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Engineering Laboratory for Kiwifruit Industrial Technology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- *Correspondence: Caihong Zhong,
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Biological Synthesis of Silver Nanoparticles and Prospects in Plant Disease Management. Molecules 2022; 27:molecules27154754. [PMID: 35897928 PMCID: PMC9330430 DOI: 10.3390/molecules27154754] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/18/2022] [Accepted: 07/22/2022] [Indexed: 01/27/2023] Open
Abstract
Exploration of nanoparticles (NPs) for various biological and environmental applications has become one of the most important attributes of nanotechnology. Due to remarkable physicochemical properties, silver nanoparticles (AgNPs) are the most explored and used NPs in wide-ranging applications. Also, they have proven to be of high commercial use since they possess great chemical stability, conductivity, catalytic activity, and antimicrobial potential. Though several methods including chemical and physical methods have been devised, biological approaches using organisms such as bacteria, fungi, and plants have emerged as economical, safe, and effective alternatives for the biosynthesis of AgNPs. Recent studies highlight the potential of AgNPs in modern agricultural practices to control the growth and spread of infectious pathogenic microorganisms since the introduction of AgNPs effectively reduces plant diseases caused by a spectrum of bacteria and fungi. In this review, we highlight the biosynthesis of AgNPs and discuss their applications in plant disease management with recent examples. It is proposed that AgNPs are prospective NPs for the successful inhibition of pathogen growth and plant disease management. This review gives a better understanding of new biological approaches for AgNP synthesis and modes of their optimized applications that could contribute to sustainable agriculture.
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Microbial silver resistance mechanisms: recent developments. World J Microbiol Biotechnol 2022; 38:158. [PMID: 35821348 DOI: 10.1007/s11274-022-03341-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/19/2022] [Indexed: 01/12/2023]
Abstract
In this mini-review, after a brief introduction into the widespread antimicrobial use of silver ions and nanoparticles against bacteria, fungi and viruses, the toxicity of silver compounds and the molecular mechanisms of microbial silver resistance are discussed, including recent studies on bacteria and fungi. The similarities and differences between silver ions and silver nanoparticles as antimicrobial agents are also mentioned. Regarding bacterial ionic silver resistance, the roles of the sil operon, silver cation efflux proteins, and copper-silver efflux systems are explained. The importance of bacterially produced exopolysaccharides as a physiological (biofilm) defense mechanism against silver nanoparticles is also emphasized. Regarding fungal silver resistance, the roles of metallothioneins, copper-transporting P-type ATPases and cell wall are discussed. Recent evolutionary engineering (adaptive laboratory evolution) studies are also discussed which revealed that silver resistance can evolve rapidly in bacteria and fungi. The cross-resistance observed between silver resistance and resistance to other heavy metals and antibiotics in bacteria and fungi is also explained as a clinically and environmentally important issue. The use of silver against bacterial and fungal biofilm formation is also discussed. Finally, the antiviral effects of silver and the use of silver nanoparticles against SARS-CoV-2 and other viruses are mentioned. To conclude, silver compounds are becoming increasingly important as antimicrobial agents, and their widespread use necessitates detailed understanding of microbial silver response and resistance mechanisms, as well as the ecological effects of silver compounds. Figure created with BioRender.com.
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Shalaby MG, Al-Hossainy AF, Abo-Zeid AM, Mobark H, Mahmoud YA. Synthesis, characterization, physicochemical properties, and in-vitro anti-bacterial evaluation for doped Fe-Fusarium oxysporum bio-nanocomposite. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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