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Plants
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Nanoparticles: Their Synthesis and Application to Control Plant-Associated Bacteria
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Nanoparticles: Their Synthesis and Application to Control Plant-Associated Bacteria

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Protection and Biotic Interactions".

Deadline for manuscript submissions: closed (15 January 2023) | Viewed by 4657

Special Issue Editors

Dr. Tamas Kovacs

E-Mail Website
Guest Editor
1. Biopesticide Ltd, 7632 Pecs, Hungary
2. Enviroinvest Corp., 7632 Pecs, Hungary
Interests: biopesticides; nanomaterials; metagenomics; bioinformatics
Special Issues, Collections and Topics in MDPI journals
Dr. Miroslav Baránek

E-Mail Website
Guest Editor
Mendeleum-Department of Genetics, Faculty of Horticulture, Mendel University in Brno, 691 44 Lednice, Czech Republic
Interests: molecular plant pathology; nanoparticles in plant protection; epigenetics; DNA markers
Dr. Katarina Gasic

E-Mail Website
Guest Editor
Institute for Plant Protection and Environment, Department of Plant Diseases, Teodora Drajzera 9, 11040 Belgrade, Serbia
Interests: phytobacteriology; biocontrol of plant diseases; bacteriophages
Prof. Dr. Jeffrey B. Jones

E-Mail Website
Guest Editor
Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA
Interests: bacterial plant pathogens; ecology; microbe fitness; host–parasite interaction; avirulence genes; resistance mechanisms
Dr. Ralf Koebnik

E-Mail Website
Guest Editor
Plant Health Institute of Montpellier, Institute de Recherche pour le Développement, 34394 Montpellier, France
Interests: Xanthomonas–host pathosystem; comparative genomics and transcriptomics; molecular typing systems for bacterial plant pathogens; engineering of plant resistance genes
Special Issues, Collections and Topics in MDPI journals
Dr. Mathews L. Paret

E-Mail Website
Guest Editor
1. Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA
2. North Florida Research and Education Center, Quincy, FL 32351, USA
Interests: nanomateirals in plant disease management; field-based diagnostic tools; sensing and artificial intelligence; integrated pest management
Dr. Emilio Stefani

E-Mail Website
Guest Editor
Department of Life Science, University of Modena and Reggio Emilia, 42122 Reggio Emilia, Italy
Interests: microbe–microbe interactions; microbial biocontrol agents; disease epidemiology; pest risk analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plant diseases are one of the most important limiting factors of food production. Many important diseases are induced by the plant pathogenic bacteria that cause yearly global high production losses. Environmental pollution can also limit the use of the produced crops, causing serious human disease outbreaks when infected water is used for irrigation. Therefore, the global demand for food production escalates, also ensuring that food security exists nowadays.

Nanoparticles have unique properties that are important for agricultural applications. In addition to their strong antibacterial effects, their potential for timed and/or targeted delivery is also exploitable from their structural properties.

In order to integrate the knowledge related to this field, an interdisciplinary Special Issue of Plants will accept both original research and review papers dealing with the following subjects:

  • Nanomaterial applications against phytopathogenic bacteria;
  • Nanomaterial applications against human pathogenic bacteria adapted and transmitted via infected plants;
  • Production of novel nanomaterials applicable against plant-associated bacteria;
  • Targeted and timed delivery of nanomaterials in crop production systems;
  • Effect of nanomaterials on the plants and microbiome in crop production systems.

Dr. Tamas Kovacs
Dr. Miroslav Baránek
Dr. Katarina Gasic
Prof. Dr. Jeffrey B. Jones
Dr. Ralf Koebnik
Dr. Mathews L. Paret
Dr. Emilio Stefani
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  •  nanomaterials
  •  phytopathogenic bacteria
  •  plant-associated bacteria
  •  targeted delivery
  •  timed delivery
  •  effect of nanomaterials

Published Papers (2 papers)

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Research

17 pages, 4966 KiB  
Article
Potential of Novel Magnesium Nanomaterials to Manage Bacterial Spot Disease of Tomato in Greenhouse and Field Conditions
by Ying-Yu Liao, Jorge Pereira, Ziyang Huang, Qiurong Fan, Swadeshmukul Santra, Jason C. White, Roberto De La Torre-Roche, Susannah Da Silva, Gary E. Vallad, Joshua H. Freeman, Jeffrey B. Jones and Mathews L. Paret
Plants 2023, 12(9), 1832; https://doi.org/10.3390/plants12091832 - 29 Apr 2023
Cited by 1 | Viewed by 1435
Abstract
Bacterial spot of tomato is among the most economically relevant diseases affecting tomato plants globally. In previous studies, non-formulated magnesium oxide nanoparticles (nano-MgOs) significantly reduced the disease severity in greenhouse and field conditions. However, the aggregation of nano-MgO in liquid suspension makes it [...] Read more.
Bacterial spot of tomato is among the most economically relevant diseases affecting tomato plants globally. In previous studies, non-formulated magnesium oxide nanoparticles (nano-MgOs) significantly reduced the disease severity in greenhouse and field conditions. However, the aggregation of nano-MgO in liquid suspension makes it challenging to use in field applications. Therefore, we formulated two novel MgO nanomaterials (SgMg #3 and SgMg #2.5) and one MgOH2 nanomaterial (SgMc) and evaluated their physical characteristics, antibacterial properties, and disease reduction abilities. Among the three Mg nanomaterials, SgMc showed the highest efficacy against copper-tolerant strains of Xanthomonas perforans in vitro, and provided disease reduction in the greenhouse experiments compared with commercial Cu bactericide and an untreated control. However, SgMc was not consistently effective in field conditions. To determine the cause of its inconsistent efficacy in different environments, we monitored particle size, zeta potential, morphology, and crystallinity for all three formulated materials and nano-MgOs. The MgO particle size was determined by the scanning electron microscopy (SEM) and dynamic light scattering (DLS) techniques. An X-ray diffraction (XRD) study confirmed a change in the crystallinity of MgO from a periclase to an Mg(OH)2 brucite crystal structure. As a result, the bactericidal activity correlated with the high crystallinity present in nano-MgOs and SgMc, while the inconsistent antimicrobial potency of SgMg #3 and SgMg #2.5 might have been related to loss of crystallinity. Future studies are needed to determine which specific variables impair the performance of these nanomaterials in the field compared to under greenhouse conditions. Although SgMc did not lead to significant disease severity reduction in the field, it still has the potential to act as an alternative to Cu against bacterial spot disease in tomato transplant production. Full article
(This article belongs to the Special Issue Nanoparticles: Their Synthesis and Application to Control Plant-Associated Bacteria)
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16 pages, 4858 KiB  
Article
Sustainable Protocols for Cellulose Nanocrystals Synthesis from Tomato Waste and Their Antimicrobial Properties against Pseudomonas syringae pv. tomato
by Daniele Schiavi, Riccardo Ronchetti, Veronica Di Lorenzo, Riccardo Vivani, Stefano Giovagnoli, Emidio Camaioni and Giorgio M. Balestra
Plants 2023, 12(4), 939; https://doi.org/10.3390/plants12040939 - 18 Feb 2023
Cited by 4 | Viewed by 2103
Abstract
Nanotechnology is rapidly gaining ground in crop protection, with the growing quest for sustainable nanopesticides and nanocarriers for plant pathogen management. Among them, cellulose nanocrystals (CNC) are emerging as innovative agrofood-waste-derived antimicrobial materials. In this work, new chemical and enzymatic CNC extraction methods [...] Read more.
Nanotechnology is rapidly gaining ground in crop protection, with the growing quest for sustainable nanopesticides and nanocarriers for plant pathogen management. Among them, cellulose nanocrystals (CNC) are emerging as innovative agrofood-waste-derived antimicrobial materials. In this work, new chemical and enzymatic CNC extraction methods from tomato harvest residues were evaluated. The obtained nanomaterials were characterized and tested for their antimicrobial properties on Pseudomonas syringae pv. tomato (Pto), the causal agent of bacterial speck disease on tomato. Both protocols were efficient. The enzymatic extraction method was greener, producing purer CNC at slightly lower yield. The obtained CNC, although they weakly inhibited cell growth and did not promote reactive oxygen species (ROS) formation, provoked bacterial aggregation and the inhibition of biofilm production and swimming motility. Both protocols produced CNC with similar morpho-chemical features, as well as promising antimicrobial activity against plant bacterial pathogens, suggesting their potential role in sustainable crop protection strategies. The new protocols could be a valuable alternative to conventional methods. Full article
(This article belongs to the Special Issue Nanoparticles: Their Synthesis and Application to Control Plant-Associated Bacteria)
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