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Horticulturae
Special Issues
Plant-Parasitic Nematodes in Horticultural Crops
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Plant-Parasitic Nematodes in Horticultural Crops

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Insect Pest Management".

Deadline for manuscript submissions: closed (15 December 2023) | Viewed by 5048

Special Issue Editors

Dr. Ariadna Giné Blasco

E-Mail Website
Guest Editor
Agri-Food Engineering and Biotechnology Department, Universitat Politècnica de Catalunya, Esteve Terradas 8, 08860 Castelldefels, Spain
Interests: plant parasitic nematodes; plant health; phytopathology; soil microbiology; sustainable agriculture
Prof. Dr. Francesc Xavier Sorribas Royo

E-Mail Website
Guest Editor
Agri-Food Engineering and Biotechnology Department, Universitat Politècnica de Catalunya, Esteve Terradas 8, 08860 Castelldefels, Spain
Interests: biological control; cultural methods; integrated nematode management; multitrophic interactions in soil; plant resistance; priming; plant-nematode interactions

Special Issue Information

Dear Colleagues,

Plant-parasitic nematodes (PPN) are one of the most devastating pathogens, affecting yields in horticultural crops. Crop damage increases after a reduction in soil fumigants and chemical nematicide application, due to consumers’ and politicians’ awareness of the negative impact to the environment and non-target organisms. For that reason, there is a need to increase knowledge of plant–nematode interactions; research on new and friendly control methods; the understanding of multitrophic interactions and plant defence mechanisms induced by biotic and abiotic agents against PPN; the information of soil suppressiveness mechanisms against PPN, etc. Moreover, in a climate change scenario, the geographical distribution of nematodes may also change, thus, requiring more studies on the interaction between PPN and crop yields.

In this Special Issue, the Guest Editors welcome high-quality original research manuscripts as well as reviews in the following topics related to horticulture crops:

  • Geographical distribution of nematode species;
  • Molecular characterization and phylogeny. New taxonomic groups;
  • Agricultural management on plant-parasitic nematodes;
  • Plant–nematode interaction;
  • Multitrophic interactions;
  • Induced plant defence mechanisms by biotic and abiotic agents;
  • Soil suppressiveness and soil biodiversity interactions.

Dr. Ariadna Giné Blasco
Prof. Dr. Francesc Xavier Sorribas Royo
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. Horticulturae is an international peer-reviewed open access monthly 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 2200 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

  • biodiversity
  • biological control
  • induced resistance
  • plant resistance
  • plant–nematode interactions
  • plant health
  • priming
  • sustainable agriculture
  • vegetables

Published Papers (4 papers)

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Research

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14 pages, 1802 KiB  
Article
Role of Two Transcription Factors (TGA 1a and TGA 2.1) in the Mi-1-Mediated Resistance of Tomato to the Root-Knot Nematode Meloidogyne javanica
by Susana Pascual, Mariana Emiliozzi and Gloria Nombela
Horticulturae 2024, 10(2), 134; https://doi.org/10.3390/horticulturae10020134 - 30 Jan 2024
Viewed by 746
Abstract
The Mi-1 gene in tomato confers resistance against insects and nematodes. The mechanisms involved in the functioning of this gene are not completely known, and they differ depending on the damaging organism (insect or nematode). Transcription factors (TF) from different families are essential [...] Read more.
The Mi-1 gene in tomato confers resistance against insects and nematodes. The mechanisms involved in the functioning of this gene are not completely known, and they differ depending on the damaging organism (insect or nematode). Transcription factors (TF) from different families are essential for plant defence, and the TGAs, members of the Basic Leucine Zipper (bZIP) TF family, are relevant in different pathosystems. In this work, the implication of TGA 1a and TGA 2.1 genes in Mi-1 resistance against the root-knot nematode Meloidogyne javanica was studied, by virus-induced gene silencing (VIGS) based on Tobacco rattle virus (TRV). Results showed that infiltration with the empty TRV vector did not alter Mi-1-mediated resistance, confirming the adequacy of this method. Silencing of the TGA 1a gene resulted in a decrease in resistance to M. javanica, as the numbers of egg masses were significantly higher than those on non-silenced plants. This decrease in resistance was similar to that caused by silencing the Mi-1 gene. However, the silencing of the TGA 2.1 gene caused a limited loss of resistance, with infestation levels intermediate between those of resistant and susceptible varieties. Thus, our results demonstrate the requirement of TGA 1a in Mi-1-mediated resistance to M. javanica, while the incomplete silencing of TGA 2.1 impaired a specific determination of its role. Full article
(This article belongs to the Special Issue Plant-Parasitic Nematodes in Horticultural Crops)
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9 pages, 417 KiB  
Article
Divergent Responses of Tomato Cultivars with Resistance to Tomato Yellow Leaf Curl Virus as Infected by Meloidogyne javanica
by Soledad Verdejo-Lucas
Horticulturae 2023, 9(7), 777; https://doi.org/10.3390/horticulturae9070777 - 07 Jul 2023
Viewed by 792
Abstract
Commercial tomatoes are usually complex F1 hybrids with multiple resistances genes from different wild Solanum species. The response of tomato cultivars with resistance to root-knot nematodes (RKN) and Tomato yellow leaf curl virus (TYLCV) as infected by Meloidogyne javanica was determined in a [...] Read more.
Commercial tomatoes are usually complex F1 hybrids with multiple resistances genes from different wild Solanum species. The response of tomato cultivars with resistance to root-knot nematodes (RKN) and Tomato yellow leaf curl virus (TYLCV) as infected by Meloidogyne javanica was determined in a controlled environment and field conditions. Four treatments were tested, viz. tomato cultivars with (i) RKN resistance alone; (ii) combination of RKN and TYLCV resistance (RKN + TYLCV); (iii) TYLCV resistance alone; and (iv) control (susceptible to the nematode and virus). The RKN-resistant plants effectively suppressed nematode infection and reproduction both in a controlled environment and in field conditions. The RKN + TYLC-resistant plants were less effective (p < 0.001) than the RKN plants in a controlled environment, and their resistance levels were significantly reduced in the field. Nonetheless, the RKN + TYLCV plants supported lower (p < 0.001) nematode infection and reproduction than the susceptible control plants. The TYLCV-resistant plants reduced (p < 0.001) nematode infection and reproduction compared to the susceptible control in a controlled environment and in field conditions. The divergent response of tomato cultivars with resistance to TYLCV via infection by M. javanica can be attributed to the genetic background of the cultivars. Full article
(This article belongs to the Special Issue Plant-Parasitic Nematodes in Horticultural Crops)
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12 pages, 1179 KiB  
Article
Use of Bacteria Isolated from Berry Rhizospheres as Biocontrol Agents for Charcoal Rot and Root-Knot Nematode Strawberry Diseases
by María Camacho, Berta de los Santos, María Dolores Vela and Miguel Talavera
Horticulturae 2023, 9(3), 346; https://doi.org/10.3390/horticulturae9030346 - 06 Mar 2023
Cited by 2 | Viewed by 1452
Abstract
Strawberry is a high-value crop in Spain, where fruits for fresh consumption are produced off-season and exported to central and northern European countries. Soil-borne pathogens (SBP), such as Macrophomina phaseolina and Meloidogyne hapla, are widely spread in strawberry crops in Spain. The prevalence of these [...] Read more.
Strawberry is a high-value crop in Spain, where fruits for fresh consumption are produced off-season and exported to central and northern European countries. Soil-borne pathogens (SBP), such as Macrophomina phaseolina and Meloidogyne hapla, are widely spread in strawberry crops in Spain. The prevalence of these pathogens is a significant barrier to producing strawberries of premium quality and at profitable yields. The current ban on fumigant pesticides drives the search for alternative SBP control methods that can simultaneously control both SBP. Twenty-nine bacterial strains were isolated and identified from strawberry and blueberry rhizospheres and screened for plant growth promotion activities as well as for biocontrol potential on M. phaseolina and M. hapla. Two of these bacterial strains (Bacillus velezensis FC37 and Pseudomonas aeruginosa AC17), together with Brevibacterium frigoritolerans Hvs8 coming from IFAPA’s bacterial collection, were selected and evaluated in planta for their biocontrol potential on strawberry SBP diseases caused by M. phaseolina and M. hapla. The three tested bacterial strains reduced charcoal rot disease severity, crown incidence and severity, and petiole colonization by M. phaseolina. Root-knot nematode (RKN) symptoms were reduced by P. aeruginosa AC17 and B. velezensis FC37, but RKN reproduction was only reduced in plants inoculated with P. aeruginosa AC17. Pseudomonas aeruginosa AC17 showed the greatest potential as a biocontrol agent candidate to be included in integrated disease management programs to control the two most prevalent soil-borne pathogens of strawberry in Spain. Full article
(This article belongs to the Special Issue Plant-Parasitic Nematodes in Horticultural Crops)
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Review

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17 pages, 2547 KiB  
Review
Presenting the Secrets: Exploring Endogenous Defense Mechanisms in Chrysanthemums against Aphids
by Changchen Xia, Wanjie Xue, Zhuozheng Li, Jiaxu Shi, Guofu Yu and Yang Zhang
Horticulturae 2023, 9(8), 937; https://doi.org/10.3390/horticulturae9080937 - 17 Aug 2023
Cited by 2 | Viewed by 1348
Abstract
As the second-largest cut flower plant globally and one of the top ten traditional flowers in China, chrysanthemums hold significant economic value, encompassing both ornamental and medicinal applications. However, aphids pose a considerable threat as one of the most critical pests affecting chrysanthemums. [...] Read more.
As the second-largest cut flower plant globally and one of the top ten traditional flowers in China, chrysanthemums hold significant economic value, encompassing both ornamental and medicinal applications. However, aphids pose a considerable threat as one of the most critical pests affecting chrysanthemums. These pests not only diminish the ornamental value of chrysanthemums through feeding and reproduction but also transmit numerous plant viruses, causing irreversible damage. This review examines aphids’ feeding and damage patterns as a starting point, highlighting the unique endogenous defense mechanisms that have evolved in chrysanthemums during their continuous struggle against aphids. These mechanisms include constitutive defense and induced defense. In addition, we enumerate aphid-resistance genes that have been reported in chrysanthemums. Furthermore, this paper compares and predicts the aphid-resistance genes of other species based on the published Chrysanthemum nankingense genome, aiming to provide a valuable reference for future research on aphid-resistance genes in chrysanthemums. Full article
(This article belongs to the Special Issue Plant-Parasitic Nematodes in Horticultural Crops)
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